Soil ManagementOrange Judd Company, 1914 - 311 páginas |
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Página iii
... Soil Management , which he was unwilling to put forth until he knew something of this oldest management with its present marvelous results . The chapter on the study of Far Eastern agriculture has been collected by Mrs. King 349732 from ...
... Soil Management , which he was unwilling to put forth until he knew something of this oldest management with its present marvelous results . The chapter on the study of Far Eastern agriculture has been collected by Mrs. King 349732 from ...
Página v
... SOIL MANAGEMENT_ Needs for increased production -- I - 49 I Greatly reduced yields from bad soil management-- Average yields of cereals Importance of soil management Study of source of soil nitrogen Necessary conditions for fertile soil ...
... SOIL MANAGEMENT_ Needs for increased production -- I - 49 I Greatly reduced yields from bad soil management-- Average yields of cereals Importance of soil management Study of source of soil nitrogen Necessary conditions for fertile soil ...
Página 1
... SOIL MANAGEMENT TH HE management of soils to establish , to increase and to maintain a high pro- ductive capacity of fields is one of the oldest and most extensively practiced arts of indus- trial life . Most barbaric and all civilized ...
... SOIL MANAGEMENT TH HE management of soils to establish , to increase and to maintain a high pro- ductive capacity of fields is one of the oldest and most extensively practiced arts of indus- trial life . Most barbaric and all civilized ...
Página 2
... world's de- mand for power and heat . While the lands which may be laid under tribute by good soil management , to augment future supplies , extend from the shore lines of the sea to the snow lines of the moun- 2 SOIL MANAGEMENT.
... world's de- mand for power and heat . While the lands which may be laid under tribute by good soil management , to augment future supplies , extend from the shore lines of the sea to the snow lines of the moun- 2 SOIL MANAGEMENT.
Página 3
... soil man- agement must be improved ; the underlying sciences , in their relation to it , must be de- veloped and the practices squared to their laws and teachings ... soil management-- Average yields of cereals Importance of soil management.
... soil man- agement must be improved ; the underlying sciences , in their relation to it , must be de- veloped and the practices squared to their laws and teachings ... soil management-- Average yields of cereals Importance of soil management.
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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