Soil ManagementOrange Judd Company, 1914 - 311 páginas |
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Página 17
Franklin Hiram King Carrie H. Baker King. water may be stored to become charged with dissolved plant food materials , over which ... inches deep in the spring of the same season . The second cube represents the volume the dry soil would WATER ...
Franklin Hiram King Carrie H. Baker King. water may be stored to become charged with dissolved plant food materials , over which ... inches deep in the spring of the same season . The second cube represents the volume the dry soil would WATER ...
Página 19
... inches , or 44.24 per cent of the whole cubic foot . The dry weight of this soil is 73.176 pounds , while the ... water carried in a cubic foot of surface soil is represented relatively by the fourth cube on the chart , which contains 382.5 ...
... inches , or 44.24 per cent of the whole cubic foot . The dry weight of this soil is 73.176 pounds , while the ... water carried in a cubic foot of surface soil is represented relatively by the fourth cube on the chart , which contains 382.5 ...
Página 20
... inches on each edge . This amount of water repre- sents nearly 2.66 inches in depth on the level over the surface , and if the space occupied by air were also filled with water the com- bined amount would overspread the surface to a ...
... inches on each edge . This amount of water repre- sents nearly 2.66 inches in depth on the level over the surface , and if the space occupied by air were also filled with water the com- bined amount would overspread the surface to a ...
Página 26
... water which would cover the surface to a depth of some 16 to 18 inches . This cube of plant food soluble in water , de- rived from one cubic foot of surface soil , a little less than 0.1 of an inch on an edge , constitutes .1148 per ...
... water which would cover the surface to a depth of some 16 to 18 inches . This cube of plant food soluble in water , de- rived from one cubic foot of surface soil , a little less than 0.1 of an inch on an edge , constitutes .1148 per ...
Página 83
... inches of wa- ter respectively , and there must be left in the soil at harvest enough water for growth not to have been stopped . It is a fact of great practical significance , too , that the necessary transpiration of mois- ture ...
... inches of wa- ter respectively , and there must be left in the soil at harvest enough water for growth not to have been stopped . It is a fact of great practical significance , too , that the necessary transpiration of mois- ture ...
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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