Soil ManagementOrange Judd Company, 1914 - 311 páginas |
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Página 82
... substance produced in stem , leaves and fruit . It is a matter of first importance in laying out and developing plans for what has been desig- nated " dry farming " to know what mini- mum losses under such conditions may be . I am not ...
... substance produced in stem , leaves and fruit . It is a matter of first importance in laying out and developing plans for what has been desig- nated " dry farming " to know what mini- mum losses under such conditions may be . I am not ...
Página 104
... substances may be in the soil , the crop must be limited ... substance produced above ground . With good soil conditions and an abundance of plant food it was possible to secure yields from ordinary crops of six tons of dry 104 SOIL ...
... substances may be in the soil , the crop must be limited ... substance produced above ground . With good soil conditions and an abundance of plant food it was possible to secure yields from ordinary crops of six tons of dry 104 SOIL ...
Página 105
... dry substance per acre . Six tons of dry substance means 24 tons of sugar beets and tops ; it means 7 tons of hay containing 15 per cent moisture ; 92 bushels of wheat and straw , and 756 bushels of potatoes per acre . These are large ...
... dry substance per acre . Six tons of dry substance means 24 tons of sugar beets and tops ; it means 7 tons of hay containing 15 per cent moisture ; 92 bushels of wheat and straw , and 756 bushels of potatoes per acre . These are large ...
Página 107
... dry product ; on the same soils , after they had become impoverished by ... substances are in great abundance in the soil the yields are almost exactly in ... substance ; oats 8,000 pounds , and potatoes 7,000 pounds per acre when it ...
... dry product ; on the same soils , after they had become impoverished by ... substances are in great abundance in the soil the yields are almost exactly in ... substance ; oats 8,000 pounds , and potatoes 7,000 pounds per acre when it ...
Página 112
... dry substance , and there would probably be produced at least an equal weight of leaf and twig , making in all 4.44 to 5.55 tons of dry product , which would require not less than 18 to 22 inches of rainfall to mature it , at the rate ...
... dry substance , and there would probably be produced at least an equal weight of leaf and twig , making in all 4.44 to 5.55 tons of dry product , which would require not less than 18 to 22 inches of rainfall to mature it , at the rate ...
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Términos y frases comunes
abundance amount of water available plant food become black marsh capacity of fields carried cent coarse sandy soil compound grains corn crumb structure cube cubic foot cultivation deep depth develop diameter dissolved drainage dry soil earth mulch effective essential plant food evaporation face feeding fertilizers finest clay soils furrows granules green manures growing growth humus important increase internal surface irrigation large yields leaching less lime carbonate loam loss of water magnesia maintained nitrate nitric acid nitrification nitrogen organic matter phosphoric acid physical condition plant food elements plant food materials plant sap poor soils potash pounds of water pounds per acre practice productive capacity rain rainfall root hairs root zone roots of crops salts saturated soil grains soil management soil moisture soil particles soil surface soluble plant food solution square square miles stable manure surface four feet surface soil tion underdrainage water films water-soluble plant food wheat