... sebaceous cyst 皮脂囊肿 water requirement pattern 需水规律 rheostat 可变电阻器 ...
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需水量与需水规律 specific property of water requirement
Water demand regulation of cotton by drip irrigation under mulch is the key basis for making irrigation institution and decision, however, lacking of relative Kc value lead to the unscientific method for making institution and decision of crop irrigation.
膜下滴灌棉花的需水规律是制定灌溉制度作出灌水决策的关键依据,但是相关的Kc值的确定成果不多,使相应的灌溉制度和灌水决策方法科学性不强。
参考来源 - 膜下高频滴灌棉花耗水量与灌溉制度研究At first,the water resource and fruit trees' characteristics in the project area were investigated in detail. The work focused on the analysis of the use of floodwater and groundwater,and the law of water requirements of fruit trees.
首先对示范区的自然状况、水源情况、果树的种植等基本情况做了详细的调查,着重分析了示范区所在地区的地下水和洪水的使用情况,并且对果树的需水规律做了详细分析。
参考来源 - 塔干南缘示范区引洪与节水灌溉匹配措施研究On the basis of spring-wheat requiring-water regulation,referring to deficient irrigation experiment data of spring-wheat,and using dynamic programming theory,this thesis develops the optimization model of spring-wheat irrigation system. The aim of model is to reduce the irrigation quota during growing-period.
根据春小麦的需水规律，应用动态规划理论和非充分灌溉原理，参照灌区春小麦的非充分灌溉实验资料，以减小生育期的灌溉定额为目的，建立了春小麦灌溉制度优化模型。
参考来源 - 内蒙古河套灌区区域节水灌溉水管理优化模型初步研究Compared with conventional irrigation and cultivation mode, the soil moisture and thermal environment, water requirement pattern are changed by drip irrigation under mulch.
在覆膜和滴灌的综合效应下,作物的生长与常规条件不同,土壤的水热环境以及作物需水规律发生了变化。
参考来源 - 膜下滴灌条件下甜瓜田间需水规律的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
最后，根据冬小麦的需水规律和土壤有效水含量构造干旱指数模型。
At last, a drought index model was developed by considering the water requirement of winter wheat and the available soil water content.
因此，研究甜瓜田间需水规律对理解甜瓜的优质高产，提高水分利用率具有重要意义。
So studying on regularity of water requirement of melon growing in field has important sense to understand the upgrading yield and high quality of melon and raising the utilization ratio of water.
根据田间试验对宁夏引黄灌区水稻需水规律及节水灌溉条件下水稻田水分利用效率开展研究。
Study of water-demand regulations and water use efficiencies under condition of different irrigation systems of rice were carried out by serial field-scale experiments.
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