Information on the combined effects of N and water stresses on corn (Zea mays L.) is of importance for selecting nitrogen efficient and drought tolerant ge... B Eghball,JW Maranville - 《Communications in Soil Science & Plant Analysis》 被引量: 80发表: 1991年 Water uptake and its impact ...
1. 1. The rates of water uptake across the total integument, ventral pectoral integument and ventral pelvic integument were compared in dehydrated Bufo punctatus. 2. 2. The ventral pectoral integument was found to take up insignificant quantities of water whereas the ventral pelvic integument ...
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The effect of water management on the mechanism and rate of uptake and accumulation of cadmium by rice growing in polluted paddy soil污染稻田水分管理对水稻吸收积累镉的影响及其作用机理Cd污染水稻土淹水灌溉根膜Fe(Ⅲ根膜Cd糙米CdCd污染稻田通过长期淹水灌溉能显著降低稻米中Cd含量。利用Cd污染水稻土的盆栽...
The water uptake rate can be determined by using as few as three system parameters: the depth and radius of the conceived rooting zone, the soil sorptive number, and design parameters that represent the distances between sources and sinks within rows or between drip lines. Sample computations ...
Effect of exchangeable Na (ES) on the rate and pattern of water withdrawal by roots of irrigated raya (Brassica juncea L.) was studied in aquic Natrustalfs soils in a field experiment. Root water extraction was measured by monitoring the change in water content and the flux divergence with ...
30,31. Both under and over application of water to the tomato crop had a negative impact. Under application of water can reduce photosynthesis, transpiration, stomatal conductance, leading to lower carbon assimilation and water use efficiency. Which also impaired nutrient uptake and transport, ...
The variation of ocean motion on the pressure drop in the complex loop is 1%, while that in the simple loop is 10%. Finally, the velocity oscillation in the complex loop is much weaker than that in the simple loop. The detailed theoretical formula is shown in Eq. (4). (4)LAdWdt=Δ...
(LA2−LA1). The unit leaf rate can be obtained instantaneously from functions fitted to lnWand lnLAversust,fW(t), andfL(t), such thatE=(1/LA)(dW/dt)=fW′(t)×exp(fW(t)−fL(t)). Mean values are obtained from the formula given above, using the separate estimates (W1,LA1)...
For the rib whose shape is not particularly complex, the total surface efficiency can be estimated using the following formula. (3.114)η0=1−AfA(1−ηf) here, Af is the total surface area of the rib, A is the total area of the heat transfer side, and ηf is the efficiency of ...