Soil ManagementOrange Judd Company, 1914 - 311 páginas |
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Página 19
... pounds , while the dimension gives a cube a little more than 9 inches on each edge . The third cube on the chart ... water carried in a cubic foot of surface soil is represented relatively by the fourth cube on the chart , which contains ...
... pounds , while the dimension gives a cube a little more than 9 inches on each edge . The third cube on the chart ... water carried in a cubic foot of surface soil is represented relatively by the fourth cube on the chart , which contains ...
Página 26
... pounds , or 1.83 tons , per acre . The amounts of the respective plant food elements so re- covered are given in the next table . PLANT FOOD ELEMENTS REMOVED FROM THE SUR- FACE FOOT OF EIGHT SOILS , WITH PURE WATER . Amounts in pounds ...
... pounds , or 1.83 tons , per acre . The amounts of the respective plant food elements so re- covered are given in the next table . PLANT FOOD ELEMENTS REMOVED FROM THE SUR- FACE FOOT OF EIGHT SOILS , WITH PURE WATER . Amounts in pounds ...
Página 28
... WATER . Amounts in pounds per acre of surface 4 feet . Lime Magnesia Nitrogen Phosphoric Sulphuric Potash K Ca Mg . N acid , P acid , S 348.3 82.0 113.6 1,379.0 64.3 388.6 Good soils , 264.8 1,016.4 Poor soils , 182.4 395.4 177.4 30.2 ...
... WATER . Amounts in pounds per acre of surface 4 feet . Lime Magnesia Nitrogen Phosphoric Sulphuric Potash K Ca Mg . N acid , P acid , S 348.3 82.0 113.6 1,379.0 64.3 388.6 Good soils , 264.8 1,016.4 Poor soils , 182.4 395.4 177.4 30.2 ...
Página 40
... Water - soluble salts washed from surface 4 feet under large plants , 953 pounds per acre . Water - soluble salts washed from surface 4 feet under small plants , 822 pounds per acre . Mean yield of lint , large plants , 522 pounds per ...
... Water - soluble salts washed from surface 4 feet under large plants , 953 pounds per acre . Water - soluble salts washed from surface 4 feet under small plants , 822 pounds per acre . Mean yield of lint , large plants , 522 pounds per ...
Página 46
... pounds of potash per acre of the surface foot , while the four poor soils , less strongly granulated and possessing less internal sur- face , were able to take from the solution at the rate of only 893 pounds ... water , to see how much 46 ...
... pounds of potash per acre of the surface foot , while the four poor soils , less strongly granulated and possessing less internal sur- face , were able to take from the solution at the rate of only 893 pounds ... water , to see how much 46 ...
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Términos y frases comunes
abundance agricultural amount of water available plant food become black marsh capillary action capillary rise carried cent compound grains corn cube cubic foot cultivation depth develop diameter drainage drained dry soil earth mulch effective essential plant food evaporation face feeding fertilizer finest clay soils furrows granules green manures ground growing growth humus important inches of water irrigation Japan large yields layer leaching less lime carbonate loam loss of water maintained nitrate nitric acid nitrification nitrogen organic matter peat phosphoric acid physical condition plant food elements plant food materials plant sap poor soils potash pound of dry pounds of water pounds per acre practice productive capacity rain rainfall rice root hairs root zone salts saturated sodium nitrate soil grains soil management soil moisture soil surface soluble plant food solution square miles stable manure subsoil surface four feet surface soil texture tion ture underdrainage water films wheat