First Principles of Agriculture |
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action ammonia analysis animal artificial manures atmospheric air beans become bi-calcic blood body bone burnt lime carbonate of lime carbonic acid caustic lime chalk character chemical chyme clay clover composition condition corn cultivated decomposition double silicates E. A. FREEMAN F.R.S. With numerous farm farm-yard manure farmer favourable fermentation fertility flesh-forming healthy heat heat-producing matter influence inorganic J. P. MAHAFFY known land large quantity Liebig's linseed cake live weight loam lungs manufacture marl meat mineral matter mono-calcic phosphate necessary nitrate of potash nitrate of soda nitrogenous group nitrogenous matter non-nitrogenous matter obtained organic acids organic matter oxygen phate phos phosphate of lime phosphoric acid plant ploughed portion potash present produced R. C. JEBB rendered rock salt sand silicate of alumina slaked soil straw substances sulphuric acid super-phosphate of lime supply of lime surface thereby tri-calcic phosphate turnips warmth waste wheat whilst
Popular passages
Page 80 - ... by the union of the oxygen of the air with the carbon of blood, of which these impurities are made up, are thrown off in the form of carbonic acid.
Page 60 - ... as a rule, to which there are very few exceptions, that the...
Page 15 - Whilst it is most valuable in assisting other bodies to enter into the plants growing upon the land, it appears to act rather as an " out-ofdoor servant," carefully avoiding going into the plant.
Page 91 - In order that some idea may be formed of the extent to which the...
Page 72 - First Principles of Agriculture," names the following : " Those plants that require the same kind of food should be kept as far apart as possible." Again : " That plants of the same habit of growth and general character should not follow each other.