Massachusetts. State Board of Agriculture.

Annual report of the Secretary of the Board of Agriculture online

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278 AGRICULTURAL EXPERIMENT STATION. [Jan,

thoroughly with water. Dissolve the phosphates of iron and
alumina on the filter with warm dilute hydrochloric acid, and
wash into a beaker containing a small quantity of powdered
tartaric acid. When the latter has gone into solution^ mix
with the filtrate from the oxalate of ammonia. The phos-
phoric acid is precipitated with magnesia mixture, and
treated as in (1).

Soluble phosphoric acid: Weigh out 2 grams into a
beaker, cover with 10 to 15 cubic centimetres of water, and
allow it to stand for fifteen minutes, stirring ibree times at
equal intervals. Decant the solution through a filter into a
graduated cylinder. Add another like quantity of water,
•and let it stand fifteen minutes more, stirring as before.
Filter the solution into the cylinder, and wash the residue on
the filter until the filtrate amounts to 200 cubic centimetres.
The phosphoric acid is determined in an aliquot part of the
solution as under total phosphoric acid.

Insoluble phosphoric acid : Add 100 cubic centimeters of
neutral ammonia citrate (sp. gr. 1.09) to the beaker in
which the digestion with water has been made. Put in a
water-bath and heat to 65^ C. Drop in the filter containing
the residue from the above operation, and digest for thirty
minutes, stirring every five minutes. Filter and wash
thoroughly, using the suction pump. Dry, and bum. The
ash is then treated as under total phosphoric acid.

Reverted phosphoric acid : The sum of the soluble and
insoluble substracted from the total gives the reverted or
citrate-soluble phosphoric acid.

Reagents : The reagents used in the estimation of phos-
phoric acid are prepared according to directions given in the
*' Proceedings of the Association of Official Agricultural
Chemists," 1890 (pages 228 and 229).

For ammonium citrate, 370 grams of citric acid are dis-
solved in 1,500 cubic centimetres of water, nearly neutral-
ized with crushed carbonate of ammonia, heated to expel
carbonic acid, exactly neutralized with ammonia, and brought
to a specific gravity of 1.09.

The molybdic solution is prepared by dissolving 100 grams
of molybdic acid in 417 cubic centimetres of ammonia of
specific gravity .96. Pour this solution into 1,250 cobio



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1892.] PUBLIC DOCUMENT — No. 33. 279

centimetres of nitric acid of specific gravity 1.20, and set in
a warm place for several days, or until a portion heated to
40^ C. deposits no yellow precipitate.

The magnesia mixture is prepared by dissolving J 10
grams of crystallized magnesium chloride and 280 grams of
ammonium chloride in 700 cubic centimetres of ammonia of
specific gi'avity .96, and bringing to a volume of two liters.

2. Methods of Determining Nitrogen, — The Kjeldahl
and soda- lime methods recommended by the Association of
Official Agricultural Chemists, in their "Proceedings," 1890,
pages 190 and 191, are employed, with occasional control
analyses by the absolute eupric oxide mode.

3. Method for Determining Potash, — Weigh out two
grams of the material in a platinum crucible, and char
thoroughly at a temperature just below red heat. Digest
for several hours with very dilute hydrochloric acid, on the
water-bath. Filter into a graduated cylinder, and make up
to 200 cubic centimetres. Take 50 cubic centimetres for
each test. Wann, and add in small quantities at a time, an
excess of barium hydrate. Digest for one or two hours at a
temperature of 70° to 90° C, filter, washing carefully, and
add to the filtrate a few drops of ammonium hydrate, and
enough ammonium carbonate to precipitate the excess of
barium hydrate. Filter, and bring the filtrate to dryness on
the water-bath in a platinum dish. Heat carefully in the
covered platinum dish at a temperature just below red heat,
until compounds of ammonia cease to come oflf. Take up
the residue in water, filtering if necessary, and add an
excess of platinum tetrachloride. Evaporate to dryness on
the water-bath, add a small quantity of 80 per cent, alcohol,
and allow it to stand for a few hours. Filter through a
Gooch crucible, washing with alcohol, dry, and weigh ; or
filter through paper, wash as before, dry, and brush the
potassium platinic chloride upon a weighed watch glass, with
a camelVhair brush, and weigh. If very impure, the double
salt is washed with the strong solution of ammonium chloride,
saturated with potassium platinic chloride, as recommended
in the '' Proceedings of the Association of Official Agricult-
ural Chemists," 1890, page 210.



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280 AGRICULTURAL EXPERIMENT STATION. [Jan.



5. Analyses of Commercial Fertilizers and Manurial Sub-
lances sent on for Examination.

Wood Ashes.

p., Canada wood ashes, sent on from Stow, Mass ; II., Home-made ashes, sent on
from Stow, Mass.; III. and IV., sent on from North Amherst, Mass.; V., sent
on from North Hatfield, Mass.]



Pkr Ckxt.



I.



Moisture at 100° C ,

Calcium oxide, .

Magnesium oxide.

Ferric oxide.

Potassium oxide.

Phosphoric acid,

Insoluble matter (before calcination)

Insoluble matter (after calcination)



U.88

33.42

2.89

1.03

6.17

2.19

13.67

11.07



ir.


III.


0.25


29.49


37.16


28.79


6.31


3.74


2.26


0.84


6.58


2.32


5.58


1.58


27.45


11.72


22.93


10.37


_





IV.



V.



30.69 8.68

24.75 33.19

2.04 4.21

0.97! 1.03

2.78 6. 58



1.84
16.66
13.08



2.01
14.66
12.21



Wood Ashes.

p., sent on from Lawrence, Mass ; II , sent on from Hadley, Mass.; III., sent on
from Hudson, Mass. ; IV., sent on from Clifton, Mass J

I Pkr Ckmt.





I.


II.


ra.


IV.


Moisture at 100° C, ....


8.71


13.18


18.00


15.94


Calcium oxide,


36.95


34.06


33.25


31.65


Magnesium oxide, ....


2.90


2.88


1.84


2.59


Ferric oxide,


0.07


1.32


1.42


1.62


Potassium oxide,


5.77


4.56


4.51


4.71


Phosphoric acid, .....


1.38


1.66


1.18


1.43


Insoluble matter (before calcination).


13.15


13.60


12.99


13.38


Insoluble matter (after calcination), .


11.88


11.16


10.84


10.62



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1892.]



PUBLIC DOCUMENT — No. 33.



281



5. AncUyses^ etc. — Continued.



Wood Ashes*

[I., f!rom North Amherst, Mass. ; II., from North Hadley, Mass. ; III , Railroad tie
ashes, from Winchester, Mass ; IV., from Hadson, Mass.; V , from North Am-
herst, Mass.; VI., from Lawrence, Mass.]



.


Pkr Cent.




I.


11.


III.


IV.


V.


VI.


Moisture at 100° C,


11.47


8.46


4.70


18.10


10.38


16.12


Calcium oxide,


37.51


35.76


2.51


31.75


23.84


30.38


Magnesium oxide,


3.20


4.32


1.22


2.59


3.05


2.64


Ferric oxide,


0.24


0.55


4.23


0.77


5.89


1.82


Potassium oxide, .


4.22


4.21


92


3.32


2.93


3.94


Phosphoric acid, .


1.40


2.01


0.56


1.34


1.14


1.52


Insoluble matter (before cal-
cination), ....


18.84


17.19


84.51


12.53


35.27


17.52


Insoluble matter (after cal-
cination), ....


16.11


14.85


80.20


10.53


33.73


13.10


Wood Ashes,


p., sent on from East Whately, Mass ; II., III., IV. and V., sent on from

Concord, Mass ]






Pkb Cbnt.




L 1 II.


III.


,..


V.


Moisture at 100° C, .




1

10.52, 3.60


21.40 1 13.75


15.14


Calcium oxide, .




37.07


: 33.78


29.65


33.39


-


Magnesium oxide, .




3.46


6.66


4.16


3.38


-


Ferric oxide.




0.72


1.51


0.78


0.49


-


Potassium oxide,




6.48


9.62


5.22


7.24


5.75


Phosphoric acid,




1.43


4.25


1.54


1.53


1.69


Insoluble matter (before calcin


ation) ,


9.70


9.98


9.87


10.96


13.44


Insoluble matter (after calcint


ition),


7.06


5.52


7.96


9.19


11.40



All above-stated samples of unleached wood asiies are
represented as Canada wood ashes, except No. II., which is
a home-made wood ash.



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282 AGRICULTURAL EXPERIMENT STATION. [Jan.



5. Analyses^ etc. — Continued.

Wood Ashes,

[I., sent on from Concord, Mass. ; II , sent on from Beverly, Mass. ; III., sent on
from Sunderland, Mass. ; IV , sent on from North Amherst, Mass. ; Y ., sent on
firom Sunderland, Mass.]





PxB Cbxt.




I.


II.


III.


IV.


V.


Moisture at 100° C, .


15.50


11.78


15.69


9.52


17.48


Calcium oxide,


30.16


29.12


31.59


25.12


32.23


Magnesium oxide, .


3.28


4.53


3.30


4.67


3.07


Ferric oxide,


0.99


l.U


0.40


1.49


0.67


Potassium oxide, ....


e.76


4.77


6.99


3.83


5.04


Phosphoric acid, ....


2.13


1.83


1.39


1.40


1.17


Insoluble matter (before calcination),


12.04


15.16


11.10


28.38


11.72


Insoluble matter (after calcination).


11.68


11.48


10.26


22.05 1 10.74



Wood Ashes.

[I., sent on from Rock Bottom, Mass.; II., sent on from South Framingham,
Mass.; III., sent on from Berlin, Mass.; IV., sent on fh>m Amesbnry, Mass.;
v., sent on from Beverly, Mass. ; VI., sent on from Bolton, Mass.]









Vkm CEirr.




I.


11.


III.


IV.


V.


VI.


Moisture at 100° C,


18.00


20.08


2.10


9.43


10.22


11.50


Calcium oxide.


34.40


32.16


36.00


32.52


38.98 35.66


Magnesium oxide,


2.90


3.28


3.30


2.14


3.39 4.45


Ferric oxide, ....


-


0.69




-


-


-


Potassium oxide, .


4.52


4.65


5.27


4.90


6.28


4.57


Phosphoric acid, .


1.46


2.70


1.62


1.84


1.42


1.56


Insoluble matter (before cal-
cination), ....


12.39


9.67


19.47


20.52


9.51


16.58


Insoluble matter (after cal-
cination), ....


11.44


8.12


17.78


18.30


8.54


14.83



All above-stated samples of unleached wood ashes are
represented as Canada wood ashes. Samples I., II., IV.
and VI. contain less potash than the average of (]!anada
wood ash usually sold in our markets.



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1892.]



PUBLIC DOCUMENT — No. 33.



283



5. Analyses^ etc. — Continaed.

Wood Ashes.

[I., sent on flrom Framingham, Mass. ; II. and III., sent on iVom Sonth Deerfield,
Mass. ; IV., senton from Essex, Mass. ; Y . and VI., sent on from Sudbury, Mass.]





Pkr Cext.




I. 1 If.


III. i IV.


V.


VI.


Moisture at 100° C , .


19.73


7.26


20.65


0.64


16.64


24.26


Calcium oxide,


31.49


37.07


29.65


40.49


-


-


Magnesium oxide, .


2.85


2.90


2.70


3.07


-


-


Ferric oxide, ....


1.24


1.02


1.89


-


-


.


Potassium oxide, .


4.94


4.34


4.62


6.42 4.24


4.71


Phosphoric acid, .


1.57


1.48


1.46


1.57 1.34


2.66


Insoluble matter (before cal-
cination), ....


12.57


14.45


10.10


12.03 18.08


23.92


Insoluble matter (after cal-
cination), ....


10.29


12.48


8.13


9.10


14.84


19.92



Wood Ashes,

[I., senton from Amherst, Mass.; II., sent on from Holden, Mass ; III. and IV.,
senton from Concord, Mass.; V., senton from Rock Bottom, Mass.; VI., sent
on from Stow, Mass.]





Pkh Ckjjt.




I.


n.


III. IV.


V. VI.


Moisture at 100° C, .


12.34


19.34


17.98


1
16.65 '11.62


13.27


Calcium oxide,


33.08


30.27


28.86


30.36


35.63


34.74


Magnesium oxide,


2.85


3.98


3.12


3.10


2.97


3.04


Ferric oxide, ....


0.79


0.86


0.09


1.44


0.86


0.66


Potassium oxide, .


5.60


5.11


6.81


6.10


6.40


6.32


Phosphoric acid, .


1.93


3.53


1.66


1.54 1.60


1.57


Insoluble matter (before cal-
cination), ....


15.45


10.86


17.22


13.00 10.93


10.02


Insoluble matter (after cal-
cination), . , . .


11.19


9.37


14.66


1*1.32


9.02


8.44



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284 AGRICULTURAL EXPERIMENT STATION. [Jan.



5. Analyses^ etc. — Contdnaed.

CoUon-seed'huU AsJies.

[I., sent on from Sunderland, Mass.; II. and III., sent on from North Hadley,

Mass.]







Per Ckmt.






I.


11.


III.


Moisture at 100^ C,


7.77


6.30


4.58


Calcium oxide,


8.02


-


-


Ma^esium oxide,


12.57


-


-


Potassium oxide,


30.00


16.48


9.91


Phosphoric acid,


13.19


6.58


4.41


Insoluble matter (before calcination),


12.52


41.94


67.40


Insoluble matter (after calcination), .


9.40


29.65


34.28



Sample II. and in particular Sample III. are of an excejv
tional inferior quality. Cotton-seed-hull ashes and cotton-
seed meal sold for nianurial purposes ought to be bought on a
guaranteed composition. Both articles are liable to a serious
fluctuation in composition. All articles sold for manurial
purposes, at ten dollars or more per ton, are subject to our
laws for the regulation of the trade in commercial fertilizers.

Cotton-hull Ashes,

[I , sent on from North Hadley, Mass.; II., sent on from Feeding Hills, Mass.;
Ill , sent on from Sunderland, Mass •]



Moisture at 100° C, .

Calcium oxide,

Magnesium oxide,

Ferric and aluminic oxides, .

Potassium oxide, .

Phosphoric acid, .

Insoluble matter (before calcination).

Insoluble matter (after calcination).



11.79
8.37
10.27
1.50
26. 2C
12.06
15.37
11.94



11.


HI.


6.30


4.41


13.94


4.91


2.85


5.57


2.49


4.35


26.98


16.63


8.40


7.21


13.23


47.47


11.19


40.02



* Cotton-hull and wood ashes mixed.



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1802.]



PUBLIC DOCUMENT — No. 33.



285



5. Analyses, etc. — Continaed.

Cotton-hvJl Ashes.
[Three samples, sent on from Hatfleld, Mass.]







Pkr Ckht.






I.


11.


IIT.


Moisture at 100° C,


14.18


13.65


14.22


Calciam oxide,


10.26


15.12


15.25


Magnesium oxide,


10.28


6.37


6.02


Ferric oxide,


1.88


1.51


1.08


Potassium oxide,


20.56


27.06


26.91


Phosphoric acid,


9.13


8.07


13.48


Insoluble matter (before calcination),.


12.64


10.14


9.87


Insoluble matter (after calcination), .


11.48


8.10


7.24



CoUon-seed Meed for Fertilizer.
[I. and n., sent on from Hatfield, Mass. ; III., sent on from Amherst, Mass.]



Moisture at 100° C,
Ash,

Phosphoric acid,
Potassium oxide,
Nitrogen,
Insoluble matter.



Pke Ckkt.



'•


IL


III.


7.98


9.84


7.28


-


-


7.14


3.26


8.30


2.20


2.01


2.03


2.06


6.21


6.64


6.28


0.07


0.08


0.09



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286 AGRICULTURAL EXPERIMENT STATION. [Jan.

5. Analyses^ etc. — CoDtinued.
Calcium SidpJiate.

[Sent on from Amherst, Mass.]

Per Cent.

Moisture at 100^ C, 18.02

Calcium oxide, 32.40

Sulphuric acid, 42.08

Insoluble matter, . . 2.35

Burnt Lime,

[Sent on from Amherst, Mass.]

Per Cent.

Calcium oxide, 88-64

Insoluble matter, 4.71



Nitrate of Soda.

[I., sent on from South Sudbury, Mass. ; II., sent on from North Hadley, Mass. ;
III., sent on from Amherst, Mass ]



Moisture at 100° C, .





Pkk Ckkt.




I.


II.


III.


1.S8


1.78


1.20



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1892.]



PUBLIC DOCUMENT — No. 33.



2Sl



5. AnoLyseSy etc, — Continued.

Sulphate of Potash,

[Sent on from Richmond, Mass.]

Percent

Moisture at 100° C, 6.17

Potassium oxide, 24.32

Insoluble matter, 0.56



Florida Phosphate Rock.

[I., sent on from Amherst; II., sent on from Fort Meade, FU.; III. and IV.,
sent on from Vicksburg, Miss]





I.


Pkr Ckict.






11.


iir.


IV.


Moisture at 100° C, . . .


2.24


13.62


1.59


1.38


Phosphoric acid, ....


21.67


22.42


23.96


23.71


Calcium oxide, ....


-


28.06


35.41


33.84


Ferric and aluminic oxides, .


5.02


9.46


9.70


4.80


Insoluble matter, ....


34.67


23.30


4.68


9.52


Carbonic acid, ....


Trace.


-


_


-



Florida Phosphate Rock,

[I , n., III. and IV., from Oscala, Fla. ; V., from Pitman, Fla. ; VI., sent on from

Boston, Mass.]





Pkk Ckht.




I. i II.


UI. 1 IV.


V.


VL


Moisture at 100° C,


2.03


1.90


6.53


0.99


5.28


0.58


Phosphoric acid, .


21.34


24.10


7.68


38.97


18.23


32.18


Calcium oxide.


-


-


-


-


-


29.78


Ferric and aluminic oxides, .


2.53


2.42


2.84


1.20


3.11


15.85


Insoluble matter, .


M.e4


26.44


48.77


2.35


33.89


9.16



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288 AGRICULTURAL EXPERIMENT STATION. [Jan.

5. Analyses J etc. — Continued.

Dissolved Bone-black.
[I. and II., sent on from Amherst, Mass.]









Pkb Cknt.




I.


IL


Moisture at 100^ C,
Ash, ....
Total phosphoric acid, .
Soluble phosphoric acid.
Reverted phosphoric acid.
Insoluble phosphoric acid,
Insoluble matter, .






18.60

65.62

15.35

14.87

0.29

0.19

2.95


15.15
60.40
17.55
17.51

0.12



Superphosphate .

[Sent on from Amberst, Mass.]

Per Oeiil.

Moisture at 100° C , 14.23

Ash, 69.95

Total phosphoric acid, 14.64

Soluble phosphoric acid, 10.34

Reverted phosphoric acid, 2.42

Insoluble phosphoric acid, 1.88

Insoluble matter, .* . . .10.81

Fins-ground Bone.

[Sent on from Amherst, Mass.]

Mechanical Analysis.

Percent

Fine, 48.57

Fine medium, 24.20

Medium, 20.69

Coarse medium, 6.64

Chemical Analysis.

Moisture at 100° C, 8.40

Ash, 64.81

Total phosphoric acid, 16.16

Soluble phosphoric acid, 2.33

Reverted phosphoric acrid, 6.42

Insoluble pjiosphoric aci<l, 6.41

Nitrogen, 3.89

Insoluble matter, 0.42



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1892.]



PUBLIC DOCUMENT — No. 33.



289



5. Analyses^ etc. — Continued.

Tankage,

[I., sent on from Worcester, Mass. ; 11., sent on from Hadlej, Mass. ; III., sent on
from Lexington, Mass.]











Pkb C»ht.




I.


ir.


ni.


Moisture at 100° C, .








6.78


6.05


40.92


Ash, ....








49.57


86.58


28.53


Total phosphoric acid, .








18.86


8.65


7.39


Soluble phosphoric acid.








0.64


0.05


Trace.


Reverted phosphoric acid,








9.88


5.39


4.30


Insoluble phosphoric acid, ,








8.38


3.21


3.09


Nitrogen, ....








4.16


5.04


4.73


Insoluble matter, .








1.48


2.62


0.40



Dry Ground Fish,

[I., sent on from Hadley, Mass. ; 11., sent on fh>m North Hadley, Mass. ; III., sent
on from Amherst, Mass.]














Pxs Ckxt.






1.


11.


III.


Moisture at 100° C, .








10.54


9.12


13.66


Ash, ....








17.45


20.13


19.23


Total phosphoric acid, .








6.75


7.04


7.39


Soluble phosphoric acid,








0.75


0.27


-


Reverted phosphoric acid,








3.25


3.10


-


Insoluble phosphoric acid.








2.75


3.67


-


Nitrogen,








7.64


8.47


9.16


Insoluble matter, .








1.06


2.85


2.39



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290 AGRICULTURAL EXPERIMENT STATION. [Jan.



5. Analyses^ etc. — Continued.

Fish Chum,

[Sent on from Beverly, Mass.]

Fier Gent.

Moisture at 100° C, 6.46

Ash, 25. 3S

Total phosphoric acid, 9.15

Soluble phosphoric acid, • 0.56

Reverted phosphoric acid, 5.99

Insoluble phosphoric acid, . 2.60

Nitrogen, 5.50

Insoluble matter, 1.12

Wool Waste from Factories.

[I., shoddy mill waste, sent on from Lawrence, Mass. ; II„ wool waste, sent on firom
Spencer, Mass. ; III., wool refose, sent on from Oilbertville, Mass.]





Pbs Cert.




L


u.


III.


Moisture at 100° C ,


11.88


43.05


27.05


Ash,


12.23


8.93


38.84


Potassium oxide,


O.U


0.06


0.42


Phosphoric acid,


0.08


0.05


0.07


Nitrogen,


8.44


6.67


1.05


Insoluble matter,


7.52


1.08


34.00



The best use' which can be made of this class of refuse
materials is to incorporate them into the barn-yard manure ;
they are essentially a nitrogenous source of plant food.
Their commercial manurial value depends on their percent-
age of nitrogen. From seven to eight cents per pound of the
latter is a fair basis of valuation.

Cotton Waste.

[Sent on from Fall River, Mass.]

Per Cent.

Moisture at 100° C, 5.63

Ash, 60.68

Potassium oxide, 0.66

Phosphoric acid, 0.26

Nitrogen, 0.96

Insoluble matter, 55.20



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1892.] PUBLIC DOCUMENT — No. 33. 291

5. AncUyaeSy etc, — Continued.

Tobacco Leaves,

[Sent on from Amherst, Mass.]

Per Cent.

Moisture at 100° C, 11.97

Ash, 20.48

Calcium oxide, 4.83

Ma^esium oxide, 1.36

Ferric oxide, 0.22

Potassium oxide, 6.06

Phosphoric acid, 1.15

Nitrogen, 2.95

Insoluble matter, 2.35

The tobacco leaves contain more than twice the amount of
mineral constituents found in the tobacco stems. The ash
of the latter contains more phosphoric acid and potash than
that of the former, while that of the leaves is richer in lime
and magnesia than that of the stems.



Saltpetre Waste.

[Sent on from Littleton Common, Mass.]

Percent

Moisture at 100° C, ,1.23

Potassium oxide, 2.70

Sodium oxide, 47.99

Nitrogen, 0.61

The material contains usually a large amount of common
salt, and may be used with good effect upon grass lands.



Waste from Lactate Factory.

[Sent on from Littleton Centre, Mass.]

Percent

Moisture at 100° C, 34.11

Ash, 60.24

Calcium oxide, 22.56

Potassium oxide, Trace.

Phosphoric acid, 0.67

Nitrogen, 0.68

Insoluble matter, 6.92



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292 AGRICULTURAL EXPERIMENT STATION. [Jan.



5, Analyses^ etc. — Continued.

Muck.

[I., sent on from Brookline, Mass. ; II.» sent on from Fort Meade, Fla. ; III. and
lY., sent on from Boston, Mass.]





Pek Cbvt.




I.


11.


IIL


IV-


Moisture at 100° C, .


81.03


31.17


70.00


74.87


Organic matter, ....


10.96


4.18


14.84


14.46


Ash,


8.01


64.65


15.16


10.67


Calcium oxide, ....


-


-


0.28


0.14


Nitrogen,


0.36


0.06


0.49


0.46


Phosphoric acid, ....


-


-


0.17


0.073


Insoluble matter, ....


7.04


59.13


13.47


9.24



PeaJt.

[Sent on from Marshfield, Mass.]

Per Cent.

Moisture at 100° C, 35.17

Ash 21.92

Nitrogen, ,1.16

Mud.

[Sent on from Amherst, Mass.]

Per Oeift.

Moisture at 100^ C, 22.45

Organic matter, 10.83

Ash, 66.72

Calcium oxide, . 3.64

Potassium oxide, 0.25

Phosphoric acid, Trace.

Nitrogen, 0.43

Insoluble matter, 29.26



Digitized by



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1892.]



PUBLIC DOCUMENT— No. 33.



293



5. Analysts, etc. — Continaed.

Marl.
[I., sent on from West Springfield, Mass. ; II., sent on from Mwrahfleld, Mass.]





Put Cbvt.




I.


u.


Moisture at 100° C,


1.66


8.16


Calcium oxide,


47.61


0.87


Magnesium oxide,


0.58


1.71


Ferric oxide,


Trace.


Trace.


Potassium oxide,


Trace.


0.24


Phosphoric acid,


0.10


1.41


Carbonic acid,


84.03


None.


Insoluble matter,


2.81


79.73



Home-mixed Fertilizers.
[I., sent on from North Hadley, Mass. ; II., sent on from Agawam, Mass.]





Pur Ckht.




I.


u.


Moisture at 100° C


16.86


9.69


Ash


63.66


89.20


Total phosphoric acid,


12.88


6.36


Soluble phosphoric acid, • • • .


8.24


1.69


Reverted phosphoric acid, • • • .


2.87


8.06


Insoluble phosphoric acid, • i • .


1.77


0.61


Potassium oxide,


6.97


8.28


Nitrogen,


1.63


4.80


Insoluble matter,


1.69


0.87



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294 AGRICULTURAL EXPERIMENT STATION. [Jan.



i5. AncUyaeSj etc. — Concluded.

Complete Fertilizers.

[L, sent on from Boston, Mass. ; II , home-mixed fertilizer, sent on from Conway,
Mass. ; III. and IV., sent on ftrom North Hadley, Mass.]







Pkr Ckvt.




1.


II.


III.


IT.


Moisture at 10(P C,




6.54


6.67


17.78


14. M


Ash, . . . . ,




46.27


49.21


50.12


48.42


Total phosphoric acid, .




11.64


13.82


4.57


7.42


Soluble phosphoric acid,




7.78


6.27


1.77


6.90


Reverted phosphoric acid,




2.81


5.99


0.78


0.33


Insoluble phosphoric acid,




1.05


1.56


2.02


0.19


Potassium oxide, .




4.29


4.98


10.72


7.19


Nitrogen,




8.66


3.44


5.14


3.75


Insoluble matter, .




1.72


0.64


8.12


0.81



Complete Fertilizers.

[I., II. and III., sent on from South Sadbnry, Mass.; lY , sent on from Sixteen
Acres, Mass. ; V. and Y I., sent on from Richmond, Mass.]





TemCkkt,




I.


II.


HI.


IV.


V.


VI.


Moisture at 100*^ C, .


18.05


15.92


16.54


12.43


12.14


13.54


Ash,


56.55


55.82


69.10


37.44


48.40


46.96


Total phosphoric acid, .



Online LibraryMassachusetts. State Board of AgricultureAnnual report of the Secretary of the Board of Agriculture → online text (page 59 of 63)