Through the laboratory research and field experiment, the influencing mechanisms of lateral depth in non-pressure irrigation on soil water movement and crop growth are studied.
通过室内试验和大田试验,研究了无压灌溉方式下埋管深度对水分运移和作物生长的影响机理。
The paper also proposed the reasonable irrigation depth, irrigation saturation point and irrigation compensation point, which might provide theoretic basis to make out irrigation scheme of turf grass.
并确定出灌溉深度、灌溉饱和点和灌溉补偿点,为制定合理的草坪灌溉制度提供依据。
The arched section is one of the usually adoptive section shapes in flood discharge tunnels and irrigation tunnels, but the analytic expression of normal water depth for this section is not explicit.
普通城门洞形过水断面是泄洪隧洞和灌溉引水隧洞较常采用的断面形式之一,其水力计算中的正常水深求解无显函数形式的表达公式。
Root-extended period is the key period of root growing, moderate deficit irrigation can boost the depth of root;
伸根期是烟草根系生长的关键时期,进行适度的调亏灌溉,可以促进烟草的扎根深度;
The high dependency of crop and vegetable yield on irrigation was the key cause of the change of groundwater embedded depth.
粮食和蔬菜产量对地下水资源的高度依赖性,是引起地下水埋深变化的主要原因;
The influence caused irrigation (rainfall) is to each layer soil matric potential reduces with depth of increment.
灌水(降雨)对各层土壤基质势的影响随深度的增加而减小。
In the second part of the thesis, an experimental study on the effect of embedded depth on the uniformity coefficient of irrigation and the distribution of soil moisture was made.
第二部分对渗灌管埋深对灌水均匀度和土壤水分分布的影响进行了试验研究。
There was no significant effect of burying depth on the underground biomass and root distribution, but the root density increased at each burying depth of drip irrigation emitter.
不同埋设深度对高羊茅根系分布有一定的影响,在每个滴头附近的根系密度和重量明显增加。
DESIGN: qualitative study using in-depth long interviews of 28 participants in a prior qualitative nasal irrigation study. All participants were receiving daily nasal irrigation.
设计:对28名前期参与鼻腔冲洗定性研究的患者进行深度随访定性研究。所有的参与者每天接受鼻腔冲洗。
The relationship between soil temperature changed range and the soil depth were exponential and the relativity of them was influenced by the irrigation ration.
土壤温度变幅与土层深度成指数关系,且灌溉定额对土壤温度变幅与土层深度之间的相关性具有一定的影响。
With the massive groundwater pumped for irrigation, there was an apparent decrease of groundwater depth and desalinization in soil layers that led to a substantial increase of crop production.
井灌井排技术有效地降低了地下水位,土壤明显脱盐,作物产量不断提高。
Pressure of the pump depends on the depth of drilling, the channel through which irrigation fluid resistance and the nature of delivery of irrigation fluid.
泵的压力巨细取决于钻孔的深浅﹐冲洗液所通过的通道的阻力以及所运送冲洗液的性子等。
Pressure of the pump depends on the depth of drilling, the channel through which irrigation fluid resistance and the nature of delivery of irrigation fluid.
泵的压力巨细取决于钻孔的深浅﹐冲洗液所通过的通道的阻力以及所运送冲洗液的性子等。
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