Experiment Station Record, Volume 30U.S. Government Printing Office, 1914 |
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Edisi yang lain - Lihat semua
Istilah dan frasa umum
acre agricultural alfalfa ammonia amount animals apple average bacilli beets Bordeaux mixture breeding calcium carbon casein cattle cent Chem chemical Circ color contains corn cotton crops cultivation culture dairy described determine discussed effect eggs experiments extract farm farmers feeding fertilizers figs forest fruit fungus germination given grain growth increase infection influence injury Internat investigations irrigation Jour Landw larvæ lime manure meal method milk moisture nitrate nitrate of soda nitrification nitrogen observations obtained organic parasite phosphoric acid Phytopathology plats potash potassium potatoes present production protein relation rural salts samples seed serum sheep showed silage sodium sodium nitrate soil solution species specific gravity spraying Station substances sugar sulphate sulphur superphosphate temperature tests tion trees tuberculosis U. S. Dept varieties various wheat yield Ztschr
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