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hayat1984 - Mise à jour : 31/10/2010
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Extrait / Introduction
Extrait / Introduction :
Generally tenths of an inch per day, or tens of inches per growing season Varies with type of plant, growth stage, weather, soil water content, etc. Transpiration ratio Ratio of the mass of water transpired to the mass of plant dry matter produced (g H2O/g dry matter) Typical values: 250 for sorghum 500 for wheat 900 for alfalfaPlan
Plan :
Evaporation Process of water movement, in the vapor form, into the atmosphere from soil, water, or plant surfaces Transpiration Evaporation of water from plant stomata into the atmosphere Evapotranspiration Sum of evaporation and transpiration (abbreviated “ET”) Consumptive use Sum of ET and the water taken up the plant and retained in the plant tissue (magnitude approximately equal to ET, and often used interchangeably)Exemple de page de Irrigation water requirement
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Le document Irrigation water requirement appartient à la rubrique Biologie qui elle même appartient à la thématique Sciences.
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