xt74qr4nmd3m https://exploreuk.uky.edu/dips/xt74qr4nmd3m/data/mets.xml   Kentucky Agricultural Experiment Station. 1966 journals kaes_bulletins_192 English Lexington, Ky. : The Station, 1885- Contact the Special Collections Research Center for information regarding rights and use of this collection. Kentucky Agricultural Experiment Station Bulletin n.192. text Bulletin n.192. 1966 2014 true xt74qr4nmd3m section xt74qr4nmd3m Regulatory Bulletin 192
ANALYSES OF OFFICIAL
FERTILIZER SAMPLES
by the
FEED AND FERTILIZER DEPARTMENT
KENTUCKY AGRICULTURAL EXPERIMENT STATION
SEMI-ANNUAL REPORT
SPRING SEASON
JANUARY-_]UNE, 1966
··‘l.§ 
_ g   I2 r:
 _L I1 
/865*
i UNIVERSITY OF KENTUCKY, LEXINGTON

 
 FEED AND FERTILIZER DEPARTTENT
KENTUCKY AGRICULTURAL EXPERI}ENT STATION
Bruce Poundstone, Chairman
Robert Mathews, Assistant Administrator and Chief Inspector
N. J. Huffman, Registration Inspector
J. M. Fernandez, Auditor-Inspector
FIELD INSPECTORS
Maurice H. Davis Noel J. Howard
Eugene Vanderpool Neville Hulette Wilson M. Routt
LABORATORY STAFF
Valva Midkiff John A. Shrader Norma Holbrook
John T. Adair John Ellis Robert N. Price
· Paul R. Caudill Dewey Newman, Jr. Carolyn Sue Witt
Richard D. Westmoreland Barbara Anderson
* w * * * * * *
This report compiled and prepared by Bruce Poundstone and W. J. Huffman
Analytical data by Laboratory Staff
l

 I
ij
A

 CONTENTS
‘ Page
Explanation of Tables ........................................................... 6
Explanation of Certain Columns .................................................. 7
Companies Represented by Samples Reported in This Bulletin ..... . ...... . ......... 8
Average Analysis and Coefficient of Variation of Samples Analyzed ............... l2
Summary of Average Percentage of Guaranteed Analysis and Coefficient of Variation
by Plant and Company .... ................................................... 25
Table l - Analyses of Inspection Samples of Fertilizers ..... . ...... . ............ 30
Table 2 - Analyses of Inspection Samples of Rock Phosphate and Soft Phosphate
With Colloidal Clay and Basic Slag .......... ...... .................... 91
` Table 3 - Analyses of Inspection Samples of Organic Materials .......... ......... 91
_ Table 4 - Results of Analyses of Boron in Fertilizers Reported in Table l ..... .. 92
Table 5 - Results of Analyses of Secondary and Micro Nutrients in Fertilizers
Reported in Table l . ..... ..... ...................... . ................. 95
l Table 6 - Results of Analyses of Insecticides in Fertilizers Reported in
Table 1 ............ ... ................. .. .......... .. ................ . 106
`

 6 REGULATORY BULLETIN 192 1 _
This bulletin contains results of analyses of 3,396 official samples
of commercial fertilizer made during the period January 1 through June 30,
1966.
Separate tables are provided for the results of the analyses for nitro-
gen, available phosphoric acid and soluble potash, organics, unacidulated
phosphatic material, boron, secondary and micro nutrients, and aldrin in
fertilizer.
EXPLANATION OF TABLES
The information given in the following tables should be useful in deter-
mining how nearly a manufacturer is meeting the chemical guarantee printed
on the bag or tag for the fertilizer represented by the samples listed.
This may be done by comparing the "grade" with the actual analysis listed
under "N" "APA" and "POT".
An additional means of comparing guarantees with the analyses of samples
is in the percent of relative value found, shown in the column RV. The
following examples illustrate how this relative value is calculated:
A 5-10-15 sulfate fertilizer is guaranteed to contain 5 units of nitrogen,
10 units of available phosphoric acid and 15 units of potash. Factors for
computing the relative value of these plant foods are: 3 for nitrogen, 2 for
available phosphoric acid and 1 for potash. Thus the combined guaranteed ` ·
value of the product represented is calculated:
5.0 Units of Nitrogen x 3 = 15.0
10.0 Units of Available Phosphoric Acid x 2 = 20.0
15.0 Units of Potash x 1 = 15.0
Total computed guaranteed value 50.0
The same procedure is followed for "found values". Assuming a sample V
of 5-10-15 was found to contain 5.1 units of nitrogen, 10.2 units of avail-
able phosphoric acid and 15.1 units of potash, the relative found value is
computed: ,
5.1 Units of Nitrogen x 3 = 15.3
10.2 Units of Available Phosphoric Acid x 2 = 20.h
15.1 Units of Potash x 1 = 15.1
Total computed value 50.8
50.8 (computed found value of sample) divided by 50.0 (computed guar-
anteed value) times 100 (to arrive at percentage) gives 101.6 as the percent
of relative value found.
The analyses indicated by an asterisk are deficient more than the
tolerance. Occasionally an analysis may be found that appears to be in-
consistent in its marking. For example, two samples that are guaranteed
lOl available phosphoric acid may both be found to contain 9.7%. One of
these may have an asterisk and the other not. There are two factors that
nay cause this difference.
l. These tolerances are calculated by an electronic computer and applied
to the laboratory analyses before these data are rounded off to the nearest
tenth of a percent. ln the above example, the laboratory found 9.66% for
one sample and 9.7Q% for the other. The first one would be starred as de-
ficienl.
(Continued) ,

 COMMERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 7
2. The grade is written by using the largest whole number in the guarantee
of each ingredient. For example, a custom-mixed lot of fertilizer may be
guaranteed O -11.9-11.2. The grade would be written O-ll-ll. However,
the tolerances are calculated on the 11.9% and 11.2% guarantees.
lf this fertilizer analyzed 11.3% A.P.A. and 10.9% potash, the 11.3%
A.P.A. would be starred because this analysis is 0.6% units below the 11.9%
guarantee.
The use of a high speed computer to make these calculations enables us
to apply these tolerances more precisely than has been possible before.
ln some samples a deficiency in one nutrient is accompanied by an over-
run in another nutrient. This may be evidence of improper mixing or weighing
by the manufacturer. Extreme variations of this kind cannot be attributed to
separation of materials (segregation) after the product is bagged though this
may be a minor factor. Excess of one nutrient cannot compensate for defi-
ciency of another nutrient. The purchaser is entitled to receive the full
guarantee for all nutrients as expressed by the manufacturer's guaranteed
analysis.
EXPLANATION OF CERTAIN COLUMNS
The letters NIT after a grade means that the product is, or that it
- contains Nitrate of Potash. The W/B after a grade indicates that the sample
contained boron and the W/M  means that the sample was analyzed for secon-
dary and micro-nutrients. The column headed "Num" lists the laboratory
number of the particular sample. The column headed "XS CL", an asterisk
indicates the sample did not meet the guarantee for sulfate of potash. The
RV column shows the percent of relative value found. The PHYS column shows
- the physical form of the fertilizer when sampled.
V The first digit indicates: 1 = chemically combined
2 = dry blend
_ The second digit indicates: l = pulverized, bag
` 2 = pulverized, bulk
3 = semi-granular, bag
A = semi—granular, bulk
5 = granular, bag
6 = granular, bulk
7 = pellet, bag
8 = pellet, bulk
_ 9 = liquid
O = slurry
Example: Chemically combined, granular, bag = 15
(

 8 REGULATORY BULLETIN 192 -
COMPANIES REPRESENTED BY SAMPLES REPORTED IN THIS BULLETIN _
Agrico Chemical Company Chevron Chemical Company
5050 Poplar Ave. 940 Hensley Street
Memphis, Tennessee 38101 Richmond, California 94801
Allied Chemical Corporation Chilean Nitrate Sales Corporation ·
Nitrogen Division 120 Broadway
P. O. Drawer 61 New York, New York 10005
Hopewell, Virginia 23860
Cline Fertilizer Company
American Cyanamid Company P. O. Box 67
Agricultural Division Ewing, Virginia 24248
P. 0. Box 400
Princeton, New Jersey 08540 Coastal Chemical Corporation
Yazoo City
Armour Agricultural Chemical Co. Mississippi 39194
30 Pryor Street, S.W.
Atlanta, Georgia 30303 Commercial Solvents Corporation
260 Madison Avenue
Bale Fertilizer Company New York, New York 10016
Horse Cave
Kentucky 42749 Commonwealth Fertilizer Company ,
Morgantown Road V
Ballard County Coop. Russellville, Kentucky 42276
LaCenter
Kentucky 42056 Consumers Cooperative Ass'n
P. O. Box 7305
Bluegrass Plant Foods, Inc. Kansas City, Missouri 64116
447 N. Main Street
Cynthiana, Kentucky 41031 Cooperative Fertilizer Service
Southern State Building
Bunton Seed Company Richmond, Virginia 23213
939 Jefferson Street
Louisville, Kentucky 40202 Darling & Company *
4201 S. Ashland Avenue
Burley Belt Fertilizer Company Chicago, Illinois 60609
Route #4
Lexington, Kentucky 40505 E. I. DuPont De Nemours & Co.
6054 DuPont Building
Carlisle County Fertilizer Co. Wilmington, Delaware 19898
Bardwell
Kentucky 42023 Escambia Chemical Corporation
P. O. Box 467
Cecil Farm Supply Pensacola, Florida 32502
Stanley
Kentucky 42375 Farmers Chemical Association
P. O. Box 67
Central Farmers Fertilizer C0. Tyner, Tennessee 37392
100 South Wacker Drive '
Chicago, Illinois 60606 (Continued)
l

 ` COMM RCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 9
Companies Represented by Samples Reported in this Bulletin (Contonued)
Farmers Cooperative Hopkins County Farm Service
West Arch Street P. O. Box 306
Madisonville, Kentucky 42431 Madisonville, Kentucky 42431
` Farmers Fertilizer Company Howe-Hilliard Grain Company
Smiths Grove Mayfield
Kentucky 42171 Kentucky 42066
Federal Chemical Company Hutson Chemical Company
646 Starks Building Railroad Avenue
Louisville, Kentucky 40202 Murray, Kentucky 42071
Glasgow Fertilizer Company International Minerals & Chemical Corp.
Industrial Avenue P. O. Box 67 - Lockland Station
Glasgow, Kentucky 42141 Cincinnati, Ohio 45215
W. R. Grace & company Kenco Fertilizer Company
Davison Chemical Division Bowling Green
l0l N. Charles Street Kentucky 42101
Baltimore, Maryland 21203
. V Kengas Corporation
W. R. Grace & Company 3002 Fairview Drive
‘ Liquid Fertilizer Division Owensboro, Kentucky 42301
Box 429
Atlantic, Iowa 50022 Kentucky Fertilizer Works, Inc.
P. 0. Box 595
. W. R. Grace & Company Winchester, Kentucky 40391
Nitrogen Division
P. O. Box 4915 Lincoln Farm Service
Memphis, Tennessee 38101 Stanford
Kentucky 40484
Green Belt Chemical Company
` P. O. Box 636 Mississippi Chemical Corporation
Springfield, Ohio 45501 Yazoo City
Mississippi 39194
Green Valley Farm Supply Co.
Island Mobil Chemical Company
Kentucky 42350 Agricultural Chemical Division
401 East Main Street
Gro-Green Chemical Company Richmond, Virginia 23208
' P. O. Box 388
Shelbyville, Kentucky 40065 Monsanto Company
800 N. Lindbergh Boulevard
Grove Compost Company St. Louis, Missouri 63166
_ Route 2 - Box 221
Union Grove, Wisconsin 53182 North American Fertilizer Co.
Preston Street at Bergman
Gulf Oil Corporation Louisville, Kentucky 40217
Agricultural Chemicals Div.
Dwight Building
Kansas City, Missouri 64105 (Continued)
l

 10 REGULATORY BULLETIN 192 _
Companies Represented by Samples Reported in this Bulletin (Continued)
Ohio Valley Fertilizer Southern States Madisonville Coop.
P. O. Box 799 Madisonville
Maysville, Kentucky 41056 Kentucky 4243l
Olin Mathieson Chemical Corporation Stewart Fertilizer Service, Inc.
P. 0. Box 991 Mt. Vernon
Little Rock, Arkansas 72203 Kentucky 40456
Pennyroyal Supply Company Swift & Company
Skyline Drive Agricultural Chemical Division
Hopkinsville, Kentucky 42240 National Stock Yards, Ill. 62071
Ra-Pid-Gro Corporation Tennessee Corporation
88 Ossian Street W. Peachtree Street, N.W.
Dansville, New York 14437 Atlanta, Georgia 30309
F. S. Royster Guano Company Tennessee Farmers Cooperative
P. O. Drawer 1940 LaVergne
Norfolk, Virginia 23501 Tennessee 37086 I
Ruhm Phosphate & Chemical Co. Thompson Sales Company
P. O. Box 361 Box 246
Columbia, Tennessee 38401 Montgomery, Alabama 36101
O. M. Scott 8 Sons Company Tobacco States Chemical Company
Marysville P. O. Box 479 ·
Ohio 43040 Lexington, Kentucky 40501
Sewerage Co mission, City Union Fertilizer Company
of Milwaukee Morganfield *
P. O. Box 2079 Kentucky 42437
Milwaukee, Wisconsin 53201
U. S. Steel Corporation
Smith-Douglass Company, Inc. 525 William Penn Place
P. O. Box 419 Pittsburg, Pennsylvania 15230
Norfolk, Virginia 23501
Valley Counties of Kentucky Coop.
Southern Nitrogen Company, Inc. P. O. Box 127 '
Box 246 Benton, Kentucky 42025
Savannah, Georgia 31402
Warner Fertilizer Company
Southern States Clark County Coop. P. O. Box 707
Winchester Somerset, Kentucky 42501 '
Kentucky 40391
Southern States Greenville Coop.
Greenville
Kentucky 42345
`

 COMMERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 11
The listing on pages IZ thru 24 shows the average analysis and coefficient of
variation for each grade where two or more samples of a grade are reported. These
data also show the average percentage of guarantee and the coefficient of variations
for all grades reported for a company, or plant, when more than one plant is listed
and ten or more samples are reported.
The listing on pages 25 thru 29 is a summary of the average percentage of guar-
antee and the coefficient of variation by plant and company.
The coefficient of variation is proposed as a means for reducing this to a sta-
tistic that is useful. The method for doing this will be found in textbooks on sta-
tistics and when applied to a guarantee of 5Z nitrogen is calculated as follows:
Sample Number Nitorgen Guarantee Found Sguared
A 5.0 5.6 31.36
B 5.0 5.5 30.25
C 5.0 5.4 29.16
D 5.0 5.7 32.49
E 5.0 5.5 30.25
g F 5.0 5.8 33.64
` G 5.0 5.0 25.00
, H 5.0 6.0 36.00
I 5.0 5.5 30.25
J 5.0 5.3 28.09
55.3 306.49
l 10 Samples, average analysis = §§6§ = 5.53
. . _\ / 55.32 \ x—-_
U Standard deviation - 306.49 IO = 0.38 - 0.275
’ 10-1
Coefficient of variation = 0.275 x 100 = 4.97 - 5.0%
5.53 -
lf in this example there had been less variation or "scatter", the resulting per-
· centage would have been smaller. lf there had been more variation, it would have been
larger. The coefficient varies directly with the range in values of analyses.
(

 12 REGULATORY BULLETIN 192
Average Analysis and Coefficient of Variation 0f Samples Analyzed, Spring Season, 1966
COMPANY AND PLANT GRADE NO. AVERAGE ANALYSIS COEFFICIENT OF
SAMPLES VARIATION
AGRICO CHEMICAL COM ANY
Memphis, Tennessee 0- 0-60 2 0 0 61.6 0 0 0.0
0- 9-27 2 0 10.1 27.1 0 8.4 1.8
0-20- 0 9 0 19.9 0 0 4.5 0
0-20-20 7 0 20.3 20.2 O 1.8 6.0
0-20-208 3 0 20.3 20.5 0 6.1 7.8
O-25-25 9 0 24.9 25.6 0 3.9 5.1
3- 9- 6 4 3.2 8.8 6.3 4.4 4.5 3.9
4-12- 8 16 4.2 12.6 9.0 4.2 2.6 3.4
4-16- 4 7 4.1 16.1 4.3 3.2 1.2 5.3
5-10-10 5 5.3 11.2 10.8 6.2 11.3 7.3
5-10-15 41 5.2 10.4 15.4 4.4 4.8 3.2
5-20-20 4 5.3 18.8 10.5 1.8 3.3 5.4
5-20-20 24 5.3 19.9 20.4 12.2 4.2 4.9
5-20-20B 2 5.0 18.9 20.6 1.4 2.6 4.8
6- 6-18 6 6.1 6.6 18.5 1.7 5.1 5.1
6-12-12 24 6.3 12.4 12.4 6.0 5.8 5.4
8- 8-18 8 7.9 8.2 18.2 2.3 2.7 1.7
8-10-15 2 7.9 10.2 15.2 0.0 0.7 1.8
10-10-10 24 10.2 10.4 10.6 3.5 9.2 6.5
10-10-15 2 9.8 10.4 14.7 4.3 1.3 1.4
12-12-12 17 12.2 12.5 12.4 2.7 2.8 2.5
20-20- 5 2 19.8 21.9 5.0 1.0 4.8 4.2
ALL 2 OE GUAR. CV ‘
GRADES 232 102.8 102.1 103.2 4.4 4.5 4.3
ARMOUR AGRI. CHEM. CO.
Atlanta, Georgia 0-46- 0 2 0 45.7 0 0 0.3 0 ; l
5-10- 5 B 6.2 10.6 4.8 7.4 11.9 25.5
12-24-24 5 12.2 24.4 24.5 1.3 1.5 1.5
15-15-15 3 15.3 15.6 15.4 1.0 1.7 3.9
15-40- 5 2 15.1 40.7 6.5 0.0 2.7 12.0
ALL % OF GUAR. CV
GRADES 25 105.7 101.7 102.1 3.1 4.6 12.1
Cincinnati, Ohio 0-20- 0 3 0 20.1 0 0 3.0 0
0-20-20 4 0 19.2 20.5 0 7.1 5.3
4-12- 8 10 4.7 12.9 9.4 11.3 7.9 19.1
4-16- 4 2 4.8 15.9 6.7 11.7 4.0 4.2
5-10- 5 4 5.4 10.6 5.8 7.3 2.9 10.8
5-10-10 15 5.4 10.6 10.5 4.2 5.4 8.1
5-10-15 27 5.2 10.5 14.5 7.5 2.7 4.2
5-20-20 20 5.1 19.4 19.3 4.0 3.1 4.9
6- 6-18 3 6.1 7.7 17.1 5.7 5.9 2.8
6-12-12 10 5.9 12.5 12.2 6.5 5.1 8.8
6-12-18 2 5.9 12.2 17.2 0.0 2.3 0.8
6-12-18S 13 6.0 12.2 17.7 4.9 6.0 2.5
6-24-12 2 6.0 24.1 11.5 3.5 1.1 0.6
10-10-10 14 9.8 10.7 10.5 4.2 6.2 5_4
A

 COM ERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 13
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
(C0nt'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF
SA&WLES VARIATION
_- N PZO5 NZD N NZOS NZO
ARMOUR AGRI. CHEM. C0.
Cincinnati, Ohio
(Cont'd.) 12-12-12 10 11.4 12.9 12.7 6.7 4.6 6.3
ALL Z OF GUAR. CV
GRADES 146 101.6 102.3 100.1 @ 4.6 6.4
Jeffersonville, Ind. 0- 0-50 3 0 0 52.3 0 0 2.2
0- 0-62 3 0 0 61.8 0 0 1.1
0-20- 0 4 0 19.4 0 0 5.2 0
0-20-20 5 0 20.0 20.0 0 7.3 3.9
0-20-20B 5 0 20.0 19.5 0 8.7 10.0
4-12- 8 6 4.2 12.5 9.5 8.5 4.4 8.8
5-10- 5 2 5.0 10.1 5.4 1.4 1.4 0.0
· 5-10-15 25 5.1 10.5 15.8 4.7 5.7 3.1
5-20-20 17 5.3 19.3 20.5 6.1 5.8 6.2
6- 6-18 3 6.0 6.8 17.7 5.1 6.4 3.9
6-12-12 11 6.0 11.9 13.2 3.4 2.4 6.4
6-12-12S 4 6.2 13.0 14.5 9.7 6.1 8.0
6-12-18 9 5.8 12.3 17.9 4.4 3.1 6.5
8-10-15 3 8.2 10.0 15.1 1.8 2.0 1.7
10-10-10 11 9.7 10.5 11.5 4.9 2.0 5.0
. 12-12-12 4 11.1 12.8 13.0 2.2 6.3 2.1
ALL Z OF GUAR. CV
GRADES 120 100.0   :..9 :..6 4.9
Nashville, Tcnn. 0-20- 0 3 0 20.9 0 0 1.5 0
0-20-20 6 0 19.8 20.2 0 3.5 2.8
0-46- 0 2 0 46.0 0 0 0.6 0
3-12- 6 7 3.3 12.4 6.9 11.3 3.7 5.0
3-12-24 3 3.1 11.6 23.7 1.8 7.9 1.8
3-12-24B 2 3.2 11.6 24.5 8.8 3.6 4.0
4-12- 8 7 4.3 12.1 8.9 4.5 1.3 3.4
5-10- 5 3 5.9 10.7 6.2 12.8 12.2 10.0
‘ 5-10-10 5 5.2 10.3 11.1 4.1 2.6 12.7
5-10-15 20 5.3 10.0 15.2 6.3 3.9 7.1
5-20-20 30 5.2 18.9 20.4 7.2 5.6 5.3
6-12-12 17 6.1 11.9 12.6 3.4 3.3 4.9
6-12-18 16 6.1 11.9 17.6 4.4 3.6 5.3
. 6-18-12 3 6.2 17.0 14.7 5.2 6.2 12.9
7-14-21 4 7.5 17.4 15.9 10.5 10.1 13.1
10-10-10 26 9.8 10.4 10.7 5.3 5.0 6.1
ALL  OF GUAR. CV
GRADES 99.7 102.3 6.2 4.5 6.4
`

 14 REGULATORY BULLETIN 192
Average Analysis and Coefficient of Variation of Samples Ana1yzed, Spring Season, 1966
(C¤nt'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEEFICIENT OF
SAMPLES VARIATION
HALE FERTILIZER COMPANY
Horse Cave, Kentucky 4-12- 8 2 4.7 13.8 8.1 9.0 4.6 0.0
5-10-15 2 3.5 6.5 16.5 8.0 2.1 1.7
10-10-10 2 11.3 12.1 11.2 5.0 8.1 10.1
ALL % OF GUAR. CV
GRADES 11 103.1 105.8 99.4 7.3 5.0 3.9
BLUEGRASS PLANT FOODS
Cynchiana, Ky. 4-16- 4 3 4.4 15.3 4.6 3.4 3.7 6.9
5-10-15 8 5.2 9.7 15.7 3.5 2.6 2.5
10-10-10 2 10.0 9.8 10.8 5.6 5.7 5.9
ALL Z OF GUAR. CV
GRADES 32 102.1 96.9 108.4 4.0 3.6 4.6
Danville, Ky. 0-10-20 3 0 9.5 20.2 0 3.2 3.6
0-20-20 2 0 19.9 20.6 0 1.0 3.7 '
3-12-12 4 3.6 11.5 12.4 5.6 1.1 2.9
4-12- 8 5 4.4 11.4 9.4 7.9 2.4 8.4
4-16- 4 2 4.5 13.6 8.5 17.4 17.2 36.6
5-10-15 13 5.3 9.8 14.6 5.2 5.1 6.3
5-20-20 6 5.7 19.7 21.1 5.4 4.6 3.2
6- 6-18 5 6.1 6.5 17.6 2.9 8.8 6.7
6- B- 6 3 6.1 7.5 8.5 0.9 5.0 31.0
6-12-12 3 7.8 11.4 12.9 3.2 4.4 7.6 `
8-10-15 2 7.9 9.7 15.3 3.5 0.0 0.9
10-10-10 6 10.6 9.7 11.0 3.7 1.8 4.6
12-12-12 2 11.0 11.6 13.9 0.0 0.0 3.0 `
ALL E 7. OF GUAR CV
GRADES 107.8 97.7 102.9 5.0 4.2 8.4
ISURLEY BELT EERT. C0.
Luxingtun, Kentucky 0-20-20 4 0 20.0 20.5 0 1.7 3.3
3- 9- 6 2 3.6 9.1 8.3 5.9 0.0 0.8
3- 9- 6S 4 3.4 8.8 7.8 10.2 2.4 7.1
4-12- 8 5 4.4 11.1 9.0 7.5 4.1 9.5
4-16- 4 4 4.3 15.7 4.9 5.1 3.1 17.4 '
5-10-10 9 5.3 9.9 11.0 5.3 4.3 5.5
5-10-15 17 5.1 10.2 15.3 2.8 2.4 2.0
5-20-20 8 5.0 19.5 20.8 4.4 2.5 2.4
6- 6-18 2 6.4 6.6 18.3 0.0 3.2 0.3
6- 6-18S 6 5.9 6.2 18.5 1.7 1.8 1.6 ·
6- 8- 6 5 6.2 8.4 6.3 1.4 3.5 4.8
6-12-12 7 6.1 11.7 12.8 2.3 2.4 4.0 .
6-12-18 3 5.8 12.1 18.0 5.1 11.1 7.4
8-10-15 7 1 8.1 10.1 15.5 3.4 1.7 2.3
n

 COMQERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 15
` Average Analysis and Coefficient of Variaticn 0f Samples Analyzed, Spring Season, 1966
(C0nt'd.)
` CCDEANY AND PLANT GRADE NO. AVERAGE ANALYSIS COEFFICIENT OF
SAITLES VARIATION
BURLEY BELT FERT. CO.
Lexington, Kentucky
(Cont'd.) 10-10-10 12 9.9 10.3 10.3 3.4 3.9 2.4
10-10-20 2 10.2 11.7 18.4 3.4 10.8 6.1
12-12-12 7 12.2 12.0 12.0 9.1 9.4 14.3
20-10-10 2 20.4 10.2 11.0 5.2 14.6 18.7
ALL Z OF GUAR. CV
GRADES 120 102.1 100.4 104.2 4.4 4.2 5.6
CLINE FERTILIZER CO.
Ewing, Virginia 3- 9- 6 2 3.7 9.7 6.2 13.5 11.6 10.3
5-10- 5 3 5.5 10.4 4.8 8.4 10.5 3.1
5-10-10 3 5.6 10.4 10.2 5.4 3.4 12.7
10-10-10 2 10.2 10.1 11.4 3.4 5.6 8.1
ALL Z OF GUAR. CV
GRADES 15 106.4 104.2 101.9 7.6 7.7 8.5
' COMMONWEALTH FERT. C0.
. Russellville, Ky. 0-20- 0 2 0 19.9 0 0 0.7 0
0-20-20 4 0 19.2 22.4 0 9.0 8.0
0-30-20 2 0 28.5 22.5 0 3.9 2.2
4-12- 8 5 5.2 12.7 9.0 5.6 3.7 3.2
4-16- 4 2 4.9 17.0 4.8 0.0 1.2 8.8
5-10-15 5 5.5 10.3 15.6 5.0 4.5 3.9
· 5-20-20 6 5.4 19.9 20.7 5.0 9.0 7.6
` 6-12-12 4 6.3 13.3 11.7 7.4 5.1 10.6
6-18-12 5 6.4 17.3 12.4 6.9 6.6 3.5
7-14- 7 3 7.7 11.4 7.3 9.6 11.2 1.3
` 8·12-15 2 7.7 12.9 16.0 1.8 3.2 4.8
= 8-12-15ME 2 7.7 13.5 15.3 0.9 1.0 1.3
8-24- 8 2 7.8 23.5 8.3 2.7 1.2 1.7
10-10-10 8 9.9 10.0 11.4 4.4 7.1 15.7
ALL Z 0F GUAR. CV ·
GRADES 61 104.8 99.8 105.5 4.8 5.3 6.2
COOPERATIVE FERT. SERV.
Louisville, Kentucky 0-15-30 4 0 15.4 30.0 0 3.2 2.1
' 0-20- 0 5 0 20.2 0 0 1.6 0
0-20-20 7 0 20.1 21.0 0 2.3 0.9
3-12-12 3 3.3 12.4 14.3 10.9 8.7 11.6
4-12- 8 5 4.2 12.1 9.2 7.3 3.8 9.3
4-16- 4 23 4.1 16.2 4.8 4.9 2.8 6.5
‘ 5-10-15 15 5.2 10.3 15.6 2.9 2.9 2.6
5-10-20 4 5.1 10.6 20.5 1.1 1.6 2.8
5-20-20 10 5.1 19.9 20.9 7.4 1.8 3.5
6- 6-18 2 6.2 6.3 18.4 2.2 10.1 3.4
n

 16 REGULATORY BULLETIN 192
Average Analysis and Coefficient of Variation cf Samples Analyzed, Spring Season, 1966
(Cont'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF
SAMPLES VARIATION
11 N NNN   N NNN NZN
COOPERATIVE FERT. SERV.
Louisville, Kentucky
(C0nt'd.) 6- 8- 6 2 6.5 8.8 6.3 2.1 4.0 3.3
6-12-12 9 6.2 12.2 12.9 4.1 2.9 2.8
8-10-15 13 8.2 10.6 15.2 2.6 1.8 2.6
10-10-10 10 10.0 10.6 10.7 2.5 1.3 3.7
ALL Z OF GUAR CV
GRADES 115 102.3 102.0 105.5 4.3 3.0 4.1
Russellville, Ky. 0- 0-50 2 0 0 50.9 0 0 1.9
O- 0-60 3 0 0 60.6 0 0 1.0
0-15-30 7 0 14.7 31.0 0 8.9 9.6
0-46- 0 4 0 45.9 0 0 2.4 0
4-12- 8 11 4.2 12.1 9.3 7.0 3.6 5.3
5-10-15 20 5.3 10.1 15.3 4.6 2.4 2.5
5-15- 5 3 4.8 15.6 6.0 3.2 2.3 9.1
5-20-20 23 5.2 19.7 20.4 5.7 2.9 3.9 ·
6-12-12 15 6.1 12.1 12.9 2.5 1.9 5.0
10-10-10 20 10.1 10.2 10.8 3.3 2.3 3.5
12-12-12 16 11.9 12.1 12.6 3.1 2.8 3.3
30- 0- 0 4 30.3 0 0 0.5 0 0
ALL Z OF GUAR. CV
GRADES 132 101.9 100.1 104.3 4.0 3.1 4.3
Winchester, Ky. 0- 0-50 2 0 0 49.8 0 0 2.5
0-15-30 3 0 15.2 30.8 0 2.3 4.6
0-20- 0 2 0 19.9 0 O 0.7 0
0-20-20 6 0 19.9 20.6 0 2.7 3.4
4-12- 8 9 4.0 12.0 9.2 3.5 3.7 6.6
5-10-15 19 5.2 10.3 15.2 3.2 3.3 1.9
5-20-20 10 5.1 20.0 20.2 3.3 1.9 2.4
6- 6-18 9 6.2 6.4 18.1 2.3 2.9 2.2
6- 8- 6 8 6.2 8.6 6.5 4.5 2.7 3.7
6-12-12 7 6.1 11.8 12.2 2.9 3.5 3.6
8-10-15 9 8.1 10.2 15.3 1.3 2.1 1.7 ·
10-10-10 2 10.5 9.8 11.2 4.0 1.4 5.7
ALL Z Z OF GUAR. CV
GRADES 102.5 100.4 102.7 3.1 2.6 3.3
DARLING & COMPANY
Cairo, Illinois 0-25-25 2 0 24.9 24.4 0 1.4 0.5
5-10-15 6 5.8 12.6 14.7 3.5 20.7 2.3
5-20-20 5 5.7 19.6 20.2 12.3 3.6 3.1
6-12-12 2 5.8 13.4 12.8 0.0 2.6 0.5
6-24-24 6 6.5 23.2 23.7 7.7 3.7 1.9
A

 . CCHDERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 17
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
_ (C¤nt'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF
SAMPLES VARIATION
—- 11 N NZNN NEO N M5 NNN
DARLING & COMPANY
Cairo, Illinois
(Cont'd.) 10-10-10 3 9.6 11.4 10.5 4.1 7.5 2.3
15-15-15 4 14.8 15.0 15.9 0.3 2.0 3.3
ALL Z OF GUAR. CV
GRADES 36 104.7 103.6 100.8 5.1 6.6 2.1
E. St. Louis, I11. 5-10-15 2 5.9 11.7 13.7 13.3 10.3 3.6
5-20-20 7 5.6 20.5 20.5 6.5 2.8 1.7
5-20-20ME 3 5.6 20.4 20.1 4.7 3.5 1.8
6-24-24 2 6.4 24.2 23.9 0.0 0.2 2.6
7-28-14 3 7.1 28.1 14.6 1.4 0.5 1.3
15-15-15 2 13.8 16.2 15.3 6.6 8.3 3.2
ALL Z OF GUAR. CV
_ GRADES 23 104.8 103.5 101.2 5.4 4.0 2.2
FEDERAL CHEMICAL C0.
Humboldt, Tenn. 0-20-20 2 0 19.1 19.7 0 11.5 0.3
5-10-15 3 5.2 9.9 15.0 2.9 5.5 2.9
5-20-20 7 5.6 19.0 20.0 17.2 4.5 5.9
6-12-12 8 6.2 12.1 12.2 9.1 2.2 5.2
10-10-10 4 10.0 10.3 10.5 4.1 7.1 5.2
12-12-12 5 11.5 12.4 12.3 7.0 5.2 9.8
15-15-15 5 14.4 14.5 14.7 3.7 11.7 9.3
ALL 7. OF GUAR. Cv
‘ GRADES 41 101.4  101.9 7.9 6.3 5.9
Louisville, Ky. 0-10-30 9 0 10.6 29.8 0 3.5 3.2
0-20- 0 7 0 19.8 0 0 1.2 0
0-20-20 11 0 19.2 20.4 0 5.3 4.7
3-12-12 5 4.1 12.4 13.4 23.7 5.8 12.9 '
4-12- 8 19 4.6 12.6 9.2 10.6 6.6 17.1
4-16- 4 6 4.6 16.0 5.8 6.5 5.2 13.7
I 5-10-15 29 5.6 10.4 15.1 4.8 4.7 7.0
_ 5-20-20 19 5.3 19.1 20.5 6.3 2.8 6.8
6- 6-18 3 6.3 7.4 18.4 3.1 6.9 3.3
6-12-12 14 6.2 12.2 14.0 9.3 6.5 10.0
6-12-18 2 5.8 14.4 15.0 15.9 2.4 12.2
7-28-14 2 7.1 26.5 14.7 3.9 0.8 10.5
9-10-15 18 8.8 10.6 15.9 4.5 6.6 7.3
‘ 10-10-10 25 10.2 10.3 11.0 3.5 2.8 5.6
10-10-15 6 10.0 10.5 15.8 5.2 13.8 4.9
12-12-12 12 11.9 11.9 12.7 5.0 3.8 6.7
33- 0- 0 3 35.0 0 0 1.5 0 0
ALL Z OF GUAR. CV
GRADES 197 104.3 101.3 105.4 7.0 4.9 8.2
A

 18 REGULATORY BULLETIN 192
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
(Cont'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF · I
SAMPLES VARIATION
FEDERAL CHEMICAL CO.
(Cont'd.)
Nashville, Tenn. 0-20-20 3 0 19.6 23.1 0 2.3 5.5
4-12- 8 6 4.7 12.1 10.6 6.5 7.2 14.4
5-10-15 6 5.3 10.0 14.7 5.9 2.2 3.4
5-20-20 12 5.3 19.0 20.5 5.2 4.7 3.5
5-25-15 6 5.6 23.1 15.4 2.1 4.5 1.5
6-12-12 6 6.3 11.9 12.6 1.3 1.1 9.0
9-10-15 3 8.6 10.3 15.3 1.1 3.6 4.0
10-10-10 11 10.2 10.2 10.2 3.4 4.4 6.2
10-10-15 2 10.0 10.0 15.5 0.7 3.5 3.2
10-10-15ME 3 10.2 10.4 15.4 0.9 3.0 1.7
12-12-12 3 11.6 11.6 12.4 3.4 1.4 7.3
ALL Q 'Z, OF GUAR. CV
GRADES  104.6 QQ 5.6
GLASGOW FERTILIZER C0.
Glasgow, Kentucky 0-20-20 2 0 23.2 17.8 0 15.2 21.6 . _
4-12- 8 5 4.3 10.2 9.4 3.5 7.9 7.2
4-16- 4 3 4.4 16.0 4.8 3.9 1.2 6.3
5-10-15 3 5.2 10.1 15.7 2.2 2.2 2.5
5-20-20 3 5.4 20.3 20.5 3.8 1.7 1.2
6-12-12 2 6.7 11.7 13.3 1.0 1.2 5.8
10-10-10 3 10.3 10.5 10.4 3.9 1.9 4.4
ALL Z OF GUAR. CV
GRADES 23 106.1 100.3 104.8 3.1 4.4 6.7 `
W. R. GRACE 6. C0.
Nashville, Tenn. 0-20- 0 2 0 19.7 0 0 0.3 0
0-20-20 5 0 19.7 20.0 0 3.9 1.7
0-20-ZOB 2 0 19.9 20.0 0 0.0 3.5
4-12- B 4 4.5 12.3 8.4 7.6 3.8 4.9
5-10-15 13 5.3 9.8 15.2 4.0 1.4 2.5
5-20-20 21 5.1 19.5 19.9 5.8 2.8 4.6
6-12-12 9 6.2 12.1 12.3 3.6 2.1 3.4
6-24-24 6 6.4 22.9 23.0 2.6 3.8 6.3
10-10-10 13 10.0 10.2 10.8 2.8 2.4 6.2 A
10-10-15 2 9.7 10.7 15.3 2.2 3.3 0.9
10-20-20 2 10.3 19.6 20.2 5.4 4.7 1.7
15-15-15 3 15.4 15.8 14.9 0.9 1.2 1.9
30- 0- 0 2 30.1 0 0 0.2 0 0
ALL X OF GUAR. CV
GRADES 87 102.2 98.9 100.8 3.8 2.5 3.8
·

 CO}DERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 19
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
(C0nt'd.)
. COMPANY AND PLANT GRADE NO. AVERAGE ANALYSIS COEFFICIENT OF
SAIWLES VARIATION
-- N M5 NZD N M5 NZO
W. R. GRACE & CO.
(C0nt'd.)
New Albany, Ind. 0-20- 0 4 0 19.7 0 0 6.2 0
0-25-25 5 0 25.6 25.0 0 5.1 11.3
3-12-12 2 4.0 13.0 13.6 7.0 15.8 0.0
4-12- 8 11 4.6 12.0 9.7 4.8 2.8 7.2
4-16- 4 10 4.2 16.1 5.0 4.6 2.1 12.0
5-10-15 23 5.2 10.4 15.6 3.7 3.8 3.0
5-20-20 22 5.0 20.4 20.6 5.3 3.1 5.0
6- 6-18 2 6.4 7.3 18.6 4.4 9.6 4.5
6-12-12 6 6.1 12.5 13.5 2.8 7.8 3.2
6-12-18 2 6.1 12.2 18.6 2.3 4.0 4.5
6-18-12 3 6.6 18.0 13.5 2.3 1.1 1.2
6-24-24 3 6.0 23.8 24.0 1.9 1.4 3.8
10-10-10 18 10.1 10.4 11.5 2.2 5.0 3.9
12-12-12 5 12.1 12.1 12.8 3.0 1.9 2.3
15-15-15 5 14.8 15.5 15.6 1.5 1.2 1.0
28- 0- 0 2 28.4 0 0 1.9 0 0
· - ALL Z OF GUAR. CV
GRADES 131 102.5 102.2 105.8 3.6 4.2 4.8
Hopkinsville, Ky.
4-12-24 2 4.3 13.1 23.8 8.3 9.2 4.1
5-15-15 5 5.1 15.2 15.7 3.5 2.3 5.7_
5-15-20 2 5.0 14.6 21.2 2.8 0.9 3.0
6-18-12 2 5.8 17.7 11.8 2.4 4.7 9.0
. 9-10-15 2 9.3 10.2 17.3 0.7 11.0 9.4
30- 0- 0 3 31.9 0 0 8.4 0 0
ALL Z OF GUAR. CV
_ GRADES 23 104.5 101.8 103.7 4.4 5.3 6.2
GRO-GREEN CHEMICAL C0.
Shelbyville, Ky. 0-10-30 2 0 9.5 31.5 0 37.2 16.1
5-10-15 6 5.1 10.2 14.9 5.3 2.0 2.9
5-20-20 3 5.2 20.2 20.0 3.8 8.8 9.5
5-20-20B 2 4.9 20.3 19.2 5.7 6.9 5.8
. 8-10-15 3 7.7 11.0 15.3 3.7 22.6 3.9
8-12-15 4 7.8 12.5 15.1 2.6 9.1 5.2
· 9- 9-21 2 7.8 9.7 22.4 14.5 1.4 16.7
10-10-10 7 9.5 10.5 10.5 4.1 7.1 5.5
12-12-12 3 11.4 12.6 12.4 2.2 3.5 5.2
22- 0-30 2 19.4 O 32.8 13.8 0 6.4
_ ALL 7 OF GUAR. CV
GRADES 46 97.6 104.8 103.4 5.7 10.1 7.1
I

 20 REGULATORY BULLETIN 192
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
(C0nt'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF
SAMPLES VARIATION
$1 N P2°5 NNN N NZNS NNN
GULF OIL CORPORATION
Cecilia, Kentucky 4-12- 8 3 4.6 12.4 8.8 7.8 4.5 16.5
5-10-15 4 5.7 10.4 16.4 2.0 5.1 5.8
5-20-20 5 5.4 19.0 21.2 5.7 6.7 10.1
6-12-18 2 7.1 13.1 16.8 0.9 3.2 1.6
6-24-12 2 6.1 24.7 12.2 0.0 0.2 0.5
8-10-15 4 8.2 10.6 15.3 6.3 5.3 8.7
10-10-10 4 10.7 10.4 11.5 1.9 2.8 0.8
12-12-12 2 12.1 13.3 12.4 1.7 0.5 1.7
ALL Z OF GUAR. CV
GRADES 31 107.8 102.5 105.6 3.5 3.9 6.1
Henderson, Kentucky 4-10-15 4 4.3 10.5 17.4 5.1 14.5 19.8
5-10-15 7 5.7 10.9 15.3 5.2 9.1 19.4
5-20-20 14 5.6 20.7 21.2 4.2 8.6 15.1
5-20-30 9 5.4 20.6 29.0 7.8 6.4 6.7 V
6-18-12 2 6.9 17.8 13.4 1.0 1.5 3.7
10-10-10 5 10.7 10.7 10.8 1.8 5.2 6.4
12-12-12 3 11.9 12.7 13.2 1.4 13.7 10.6
28- 0- 0 2 27.9 0 0 3.4 0 0 · .
ALL Z OF GUAR. CV _
GRADES 52 106.7 102.8 104.1 4.1 8.5 12.3
HUTSON CHEMICAL COMPANY
Murray, Kentucky 0-52- 0 2 0 51.5 0 0 0.2 0
5-20-20 3 5.3 20.7 19.6 2.1 1.6 4.7
6-12-12 2 5.9 13.3 12.7 2.4 2.1 7.7
30- 0- 0 Z 29.7 0 0 0.9 0 0
ALL Z OF GUAR. CV
GRADES 24 106.8 103.6 102.0 1.8 1.3 6.1
INTERNATIONAL MINERAL 8
CHEMICAL CORP.
Cincinnati, Ohio 0-20- 0 5 0 19.7 0 0 3.9 0
0-20-20 3 0 19.1 20.4 0 1.8 5.9
4-12- 8 6 3.9 12.8 9.4 16.3 6.4 12.9
4-16- 4 3 4.2 15.2 4.9 2.3 1.7 3.5 .
5-10-10 2 4.6 10.8 12.5 12.3 15.7 3.3
5-10-15 16 5.1 9.8 15.0 3.7 4.7 3.5
5-10-15ME 3 5.2 9.7 15.7 1.1 2.6 1.2
5-20-20 7 5.1 19.2 19.7 2.9 2.0 4.6
5-20-20ME 2 4.9 20.2 19.0 0.0 1.4 4.4
6- 6-18 2 6.6 6.6 18.0 5.4 3.2 3.1
I

 COM ERCIAL FERTILIZER IN KENTUCKY, SPRING SEASON 1966 21
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
(C0nt'd.)
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF
` SAMPLES VARIATION
1- N P2°5 MO N PM M0
INTERNATIONAL MINERAL &
CHEMICAL CORP.
Cincinnati, Ohio
(Cont'd.) 6-12-18 2 4.7 12.0 19.5 3.0 1.1 0.7
6-12-18ME 3 5.7 12.0 18.5 12.6 0.8 2.9
6-24-24 2 5.9 22.1 23.4 2.4 4.8 3.3
10-10-10 9 10.1 11.2 10.8 5.7 17.8 6.5
12-12-12 5 11.6 12.8 12.0 2.9 1.9 4.9
ALL Z OF GUAR. CV
GRADES 81 100.4 99.4 103.6 5.5 5.1 4.7
Clarksville, Tenn. 0-20- 0 2 0 19.7 0 0 2.8 0
4-16- 4 2 4.5 16.2 5.5 4.7 1.3 25.7
5-10-15 7 5.3 10.3 14.9 10.8 5.5 5.3
5-20-20 7 5.2 19.0 20.7 11.1 8.9 8.0
6-12-12 7 5.7 12.2 12.7 6.2 1.8 4.4
10-10-10 6 9.3 10.9 10.8 6.0 10.7 6.3
ALL Z OF GUAR. CV
GRADES 37 98.4 99.7 103.8 8.1 5.6 8.3
Somerset, Ky. 0-20- 0 3 0 19.4 0 0 4.4 0
_ 0-20-20 6 0 19.6 20.1 0 5.1 5.7
4-12- 8 4 4.5 11.8 9.8 8.6 3.6 2.7
5-10- 5 3 5.6 9.2 6.4 1.0 11.4 7.3
5-10-10 3 5.9 10.3 13.7 18.4 11.9 21.9
5-10-15 3 5.3 9.8 15.5 7.6 5.0 7.4
5-10-15bE 2 5.1 10.5 15.3 4.1 6.0 6.4
5-20-20 7 4.8 19.3 20.7 18.0 9.0 7.6
6-12-12 5 6.1 12.1 12.6 6.2 5.7 6.6
10-10-10 9 9.8 10.3 10.5 3.0 1.7 5.4
12-12-12 3 11.4 12.7 12.6 1.8 6.6 2.4
` ALL Z OF GUAR. CV
GRADES 53 101.4 99.1 106.4 7.9 6.1 7.1
KENTUCKY FERTILIZER WOR ‘
Winchester, Kentucky 0-20-20 3 0 19.5 21.3 0 1.4 4.3
4- 4-18 2 5.1 4.7 19.5 12.6 9.0 4.7
. 4-12- 8 3 4.2 11.4 9.0 6.3 4.5 7.7
4-16- 4 2 3.9 15.7 4.8 0.0 2.7 7.4
- 5-10-10 3 5.1 10.1 10.5 1.1 4.1 3.8
5-10-15 8 5.0 10.0 15.3 3.1 1.7 1.9
5-20-20 3 5.3 19.3 20.8 7.6 2.4 4.9
6- 6-17 2 6.2 6.4 18.4 5.7 18.9 11.9
6- 6-18 6 6.2 6.3 18.1 3.7 5.7 4.8
6- 8- 6 3 6.2 8.7 6.6 4.0 10.3 8.5
8-10-15 2 7.8 9.8 15.2 3.6 4.3 3.2
I V

 22 REGULATORY BULLETIN 192
Average Analysis and Coefficient of Variation of Samples Analyzed, Spring Season, 1966
(Cont'd.) _ I
COMPANY AND PLANT GRADE N0. AVERAGE ANALYSIS COEFFICIENT OF '
SAMPLES VARIATION
11 N NNN NNN N NM NZN
KENTUCKY FERTILIZER WOR
Winchester, Kentucky
(Cont'd.) 10-10-10 5 10.2 10.1 10.5 6.3 5.0 3.8
12-12-12 3 12.2 12.2 12.1 1.2 2.6 0.4
ALL Z OF GUAR. CV
GRADES 48 102.6 100.2 103.8 4.5 5.2 4.9
MOBIL CHEMICAL C0.
Richmond, Virginia 0-10-30 2 0 10.7 30.3 0 8.6 3.2
0-19-19 2 0 19.6 21.2 0 0.7 2.6
0-20- 0 6 0 19.9 0 0 2.2 0
0-20-20 10 0 20.1 20.4 0 3.5 3.6
3-12-12 2 3.2 12.9 12.9 4.4 1.6 4.3
4-12- 8 9 4.4 11.9 9.2 7.5 1.7 6.0
4-16- 4 6 4.1 15.5 6.9 14.8 3.8 21.5
5-10-10 2 5.4 10.5 10.2 2.6 4.0 0.0
5-10-15 14 5.2 10.1 15.3 6.0 1.4 2.3
5-20-20 20 5.5 19.6 20.3 5.0 2.7 4.2
6-12-12 7 6.3 11.7 12.2 5.8 2.0 4.0 ` ·
6-12-18 6 6.1 12.0 18.7 2.2 1.2 2.8
6-12-18ME 6 6.4 12.0 17.8 2.7 2.2 3.6 _
6-18-12 3 6.2 18.0 12.4 3.3 2.1 5.1
6-24-24 2 6.2 21.8 24.1 3.4 1.6 1.4
10-10-10 19 9.8 10.2 10.9 3.9 3.7 3.2
12-12-12 6 11.8 12.3 12.8 2.9 4.1 2.2
15-15-15 6 14.3 14.2 15.5 3.5 2.9 3.5
28- 0- 0 2 28.9 0 O 0.4 0 0 .
ALL Z OF GUAR. CV
GRADES 144 102.0 99.4 104.5 4.9 2.7 4.5
N. A&ER1CAN FERT. CO.
Louisville, Kentucky 0-20- 0 4 0 19.2 0 0 1.4 0
0-20-20 2 0 20.3 20.7 0 2.0 4.7
3-12-12 2 3.9 11.3 13.0 1.8 0.6 3.2
4-12- 8 4 4.7 10.9 10.2 6.1 2.0 9.2
5-10-15 12 5.2 9.9 15.6 4.7 8.1 2.8
5-20-20 5 5.4 19.1 20.8 8.8 4.0 1.9 ·
5-20-208 2 5.2 17.8 20.6 1.3 7.5 1.3
6- 8- 6 2 5.6 9.1 7.3 2.