Label: Merck - MERCK MIX1 • Format: CD Limited Edition, Mixed • Country: US • Genre: Electronic, Hip Hop • Style: Glitch, Abstract, IDM, Experimental, Ambient
Abstract Seasonal variation in three plant factors and in evaporation rates were determined for dryland cotton and grain sorghum in central Texas. Linja - Various - Merck Mix 1 factors measured were fractional ground cover, dry matter production, and leaf area index LAI.
The threshold LAI was approximately 2. After the threshold canopy LAI was obtained, evaporation was practically independent of plant factors and equal to E oas estimated from daily net radiation, until soil water movement to plant roots began to limit evaporation. E s strongly influenced the actual evaporation rates obtained when plant canopy LAIs were below 2.
E s was assumed to be equal to the net radiation equivalent of evaporation below the plant canopy when the soil surface was wet. After the soil surface dried sufficiently to limit water movement to the surface, E s was estimated from the measured soil water content near the surface.
E p was estimated using the measured evaporation and E s. Sensible heat originating over partially dry surface soil between plant rows was a significant source of the total energy contributing to E p. The physiology stage of growth did not greatly influence the amount of energy used in evaporation as grain sorghum plants approached maturity when an adequate supply of soil water was available.
The results imply a possibility for improving water-use efficiency of dryland crops by using higher plant populations and closer row spacings to decrease E s if the soil water supply and seasonal rainfall is adequate to produce an economic yield.
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Reset your password. Plant Influences 1. View My Binders. This article in AJ Vol. Joe T. Abstract Abstract Seasonal variation in three plant factors and in evaporation rates were determined for dryland cotton and grain Linja - Various - Merck Mix 1 in central Texas. Sensible heat originating over partially dry surface soil between plant rows was a significant source Spring 2003 the total energy contributing to E p The physiology stage of growth did not greatly influence the amount Dreams & Junk - Stray Dog - While Youre Down There energy used in evaporation as grain sorghum plants approached maturity when an adequate supply of soil water was available.
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