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采用盆栽方法研究了不同土壤水分下施N量对小麦生产力的影响 .结果表明 :在适宜土壤含水量下 ,适当增施N肥 ,土壤水分利用率提高 ,植株吸N量和小麦产量增加 ;施N量过大 ,N利用不经济 .不同土壤含水量对应的适宜施N量不同 .水分适宜的土壤对应的适宜施N量高于水分亏缺的
The pot experiment was conducted to study the effects of N application rate on wheat productivity under different soil moisture conditions. The results showed that under proper soil water content, N fertilizer application increased soil water use efficiency and plant nitrogen uptake and wheat yield increase. N is too large, N is not economical to use different soil moisture content corresponding to the appropriate amount of N applied to the different water suitable soil corresponding N application rate is higher than the water deficit