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COMMERCIAL SOURCES OF PLANT-FOOD

Acid Phosphate
Acquaintance With Terms
Animal Bone
Basic Slag
Coal-ashes
Dried Blood
Fish
Kainit
Muck
Muriate Of Potash
Nitrate Of Soda
Other Fertilizers
Raw Bone
Rock-phosphate
Salt

More from COMMERCIAL SOURCES OF PLANT-FOOD

Crops And Methods For Soil Improvement


A Bit Of Arithmetic
A Clean Seed-bed
A Few Combinations Are Safest
A Practical Test
A Southern Legume
A Three Years' Rotation
Adaptation To Eastern Needs
Affecting Physical Condition
All The Nitrogen From Clover
Alsike Clover
Amount Of Application
Amount Of Manure
Amount Per Acre
An Excess Of Nitrogen



Sulphate Of Ammonia








This is a by-product in the manufacture of coke
and also of illuminating gas. Hunt estimates that the amount of
nitrogen lost annually in Pennsylvania's coke industry would be
sufficient, if recovered by proper type of ovens, to furnish every acre
of land under cultivation in the state with four fifths of all the
nitrogen needed to keep it in a maximum state of fertility.

Sulphate of ammonia contains about 20 per cent of nitrogen, which is in
a quite available form. It has a tendency to exhaust the lime in the
soil, producing an acid condition. Some plats in the fertilizer
experiment at the Pennsylvania station have received their nitrogen in
the form of sulphate of ammonia for 30 years, and are now in such acid
condition that no crops thrive upon them. The corrective, of course, is
lime, and if ammonium sulphate were somewhat lower in price, its use
would be profitable, justifying cost of correction of acidity if it
should occur. It is used by manufacturers of commercial fertilizers,
and is well adapted to mixtures on account of its physical condition.





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Previous: Nitrate Of Soda



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