7 pages matching Sir Albert Howard in this book
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acid-loving Agricultural agricultural lime alfalfa alkaline amounts analysis apple pomace applied ashes bacteria bacterial action bone meal calcite calcite grit calcium cent nitrogen cent phosphoric acid cent potash chemical clover colloidal phosphate compost heap contain crops decay dolomitic dried blood dried ground fish earthworm easily elements energy food especially Experiment Station farm farmer feed fertilizer value fresh manure fungi green matter ground limestone growing plants growth food humus J. I. Rodale leaf mold leaves legume lignin lime liquid manure magnesium material method minerals moist moisture mulching nitrogen content nutrients organic fertilizer Organic Gardening organic matter peas peat phos phosphate rock phosphoric acid content phosphorus phosphorus content plant food plant matter pomace potash potash content poultry manure protein regions residues rich in nitrogen rock phosphate roots sawdust seeds Sir Albert Howard sludge soil soluble stalks straw substances superphosphate supply tankage trees usually valuable varies weeds wool wastes