The Cereals in AmericaOrange Judd Company, 1915 - 421 páginas |
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Página 10
... four thousand years , while the cultivation of maize , oats and rye has not been traced much more than two thousand years . 22 . The Possibility of Crop Production . - Depends mainly on climate and soil . Of these the climate is the ...
... four thousand years , while the cultivation of maize , oats and rye has not been traced much more than two thousand years . 22 . The Possibility of Crop Production . - Depends mainly on climate and soil . Of these the climate is the ...
Página 28
... four feet . The length of the culm has an important influence upon the liability to lodge , and also influences the ease of harvesting . It seems probable that the yield of straw may affect the loss in soil fertility , especially if the ...
... four feet . The length of the culm has an important influence upon the liability to lodge , and also influences the ease of harvesting . It seems probable that the yield of straw may affect the loss in soil fertility , especially if the ...
Página 29
Thomas Forsyth Hunt. 54. Leaves . There are four parts of the wheat leaf that should be distinguished : ( 1 ) the blade , which may vary in length and width , in shape , in smoothness , and in the promi- nence of its veins ; ( 2 ) the ...
Thomas Forsyth Hunt. 54. Leaves . There are four parts of the wheat leaf that should be distinguished : ( 1 ) the blade , which may vary in length and width , in shape , in smoothness , and in the promi- nence of its veins ; ( 2 ) the ...
Página 32
... four spikelets are sterile . The empty glumes are somewhat broader than the flowering glumes . The number of spikelets in a spike 1 U. S. Dept. of Agr . , Bureau of Plant Ind . Bul . 47 , p . 14 . varies widely with the variety , soil ...
... four spikelets are sterile . The empty glumes are somewhat broader than the flowering glumes . The number of spikelets in a spike 1 U. S. Dept. of Agr . , Bureau of Plant Ind . Bul . 47 , p . 14 . varies widely with the variety , soil ...
Página 33
... four and three - eighths inches long and containing forty - seven grains . Investigations by Lyon seem to show no relation between average weight of grain and the number on the spike . The yield of wheat is affected by four factors ...
... four and three - eighths inches long and containing forty - seven grains . Investigations by Lyon seem to show no relation between average weight of grain and the number on the spike . The yield of wheat is affected by four factors ...
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Términos y frases comunes
aleurone aleurone layer average barley bran breeding bushels bushels per acre butt carpels cent cereals chinch bug climate color common wheat corn crop crude fiber culm cultivated dent maize drills dry matter ears embryo endosperm fertilizers field five flint maize flour flowering glume fodder four gliadin glumes gluten grade grain grass grown growth Hessian fly husk Illinois Station inches deep increase insects land leaf less maize plant manure maturity million bushels nitrogen North North Dakota oats Ohio one-half outer glume percentage phosphoric acid plat plowing pollen pop maize pounds produced protein rachis rainfall Red Winter Wheat ripening roots rows season selection silage smut soil sown species spike spikelets spring wheat stalks starch stover straw sweet maize tassel tion U. S. Dept usually variation varieties of wheat vary weight winter wheat yellow yield of grain