alternate furrow irrigation meaning in English
交替沟灌
Examples
- In the fourth chapter , the effect of controlled alternative furrow irrigation on the ratio of root to shoot , filling rate , leaf physiological indexes , yield and water use efficiency of summer maize were discussed , and the lower limits of suitable irrigation for summer maize in controlled alternate furrow irrigation were analyzed and determined
29 ，表明干湿交替循环不仅可以减少每次灌水间隔期间的棵间土壤无效蒸发，而且也抑制了作物的奢侈蒸腾，因此作物需水量明显减少，节水效果非常显著，被证明是沟灌方式中最科学的一种灌水方法。 - In the first chapter , the improvement and development of furrow irrigation technique , theory foundation of controlled alternate furrow irrigation , and related research advance at home and abroad were analyzed and elucidated , and the main problems needing to be studied further and to be solved were put forward . in the second chapter , the soil infiltrative parameters , irrigating water advancing and water redistribution in soil were studied by adopting the controlled alternative furrow irrigation in field
根据建立的水量平衡方程，采用模式搜索技术中的爬山法，利用infiltvs分析软件，计算得到的不同沟灌方式灌溉水流的推进过程与利用实测资料回归分析得到的水流推进过程几乎完全重合，预测精度很高，因此证明本文建立的模型和分析计算方法是合理可行的，完全可用于不同沟灌方式土壤入渗参数和水流推进过程的估算。 - At present , the studies about the controlled alternate furrow irrigation are focused on how it affects the water physiological indexes , water consumption and yields of crops . but , some problems suc h as the soil infiltrative parameters , irrigating water advancing , water redistribution in soil , calculation of crop water requirement and water consumption , and the upper and lower limit indexes of soil moisture , guiding a field irrigation after the controlled alternative furrow irrigation is implemented in field , have not been researched systematically and deeply . if these problems could not been solved commendably , the popularization of controlled alternate furrow irrigation will be affected
然而，目前有关交替隔沟灌溉的研究还主要集中于这种灌水方式对作物水分生理指标、耗水量和产量的影响方面，而对大田采用这种灌水式后的土壤入渗参数变化情况、作物需水量与耗水量计算、以及指导大田灌溉的水分下限控制指标等与大田生产实际密切相关的几个问题基本上还没有进行系统的深入研究，而这些问题如不能得到很好地解决，势必会对这种灌水方式的推广应用产生严重的影响。