氮素用量对膜下滴灌甜瓜产量以及氮素平衡、硝态氮累积的影响
薛亮1,马忠明2(
),杜少平2,冯守疆1,冉生斌2
),杜少平2,冯守疆1,冉生斌2
Effects of Application of Nitrogen on Melon Yield, Nitrogen Balance and Soil Nitrogen Accumulation Under Plastic Mulching with Drip Irrigation
XUE Liang1,MA ZhongMing2(),DU ShaoPing2,FENG ShouJiang1,RAN ShengBin2
),DU ShaoPing2,FENG ShouJiang1,RAN ShengBin2
图2. 不同施氮水平下土壤剖面NO3--N含量分布
Fig. 2. NO3--N contents in soil layers under different nitrogen fertilizer application rates
