Conservation of Fertilizer Materials from Minor Sources
In maintaining soil fertility the periodic addition of organic matter plays and important part. Composts are constantly being made through the rotting of leaves, twigs, roots, and other organic matter as shown by the photograph on the title page of this publication. Composts of various substances may help supply organic matter, and they also often supply nitrogen, phosphoric acid, potash, and other elements needed by plants.
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45 per cent Absorbent material acid phosphate Agricultural Experiment Station analyses Apple ASHES AND SPOILED bacteria Banana Bone meal bran Bureau of Chemistry cent ammonium sulphate cent finely ground CHEMICALS IN COMPOSTS Chemistry and Soils Coal ashes Coffee grounds commercial composition of various compost heap Corncob Cottonseed Cottonseed-hull ash Cowpeas decomposition dried especially valuable farm conditions fertilizer materials Field bean finely ground limestone Fish scrap grain green Ground bone hogs Kentucky bluegrass King crab layer by layer layer of straw Leather lime manure fresh Material Nitrogen mill mixture moist Muriate organic matter patented phosphate rock phosphoric acid pile is built pomace potash Potassium Potatoes pounds PRACTICAL SUGGESTIONS Pumpkin recommended seed Shoddy Shrimp skins ash soil fertility Soot SPOILED FEEDS stable manure stalks straw or leaves sufficient value sulphate of ammonia superphosphate Sweetpotato TABLE Tanbark ash Tobacco Tomatoes value of composts various materials waste well-rotted compost Wood ashes