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水分与肥料是影响作物生长的两大因素,两者具有协同效应。在农业生产中,只有合理匹配水肥因子,才能起到以肥调水、以水促肥。本文重点阐述了“以肥调水”的作用,主要包括提高水分的利用效率、对根系生长的促进作用、对土壤-作物系统水势的影响、对养分在作物体内转运的影响、对气孔导度和净光合速率的影响5方面内容,并结合“以肥调水”实例进行了应用分析。
Moisture and fertilizer are two major factors affecting crop growth, and both have synergistic effects. In agricultural production, only a reasonable match of water and fertilizer factor, in order to play a water transfer to fertilizer, water and fertilizer. This article focuses on the role of “regulating water by fertilizer”, which mainly includes improving the utilization efficiency of water, promoting the growth of root system, affecting the water potential of soil-crop system, affecting the nutrient transport in crops, Conductance and net photosynthesis rate of 5 aspects, combined with “fertilizer to transfer water ” examples were applied analysis.