摘要
通过位于黑龙港流域的大田试验,研究了不同水氮处理对大豆产量、干物质量及水分利用效率的影响。试验设置灌水量和施氮量2个因素,灌水量设置充分灌溉(W4:灌水量为1.0 I)和亏缺灌溉(W3:0.8 I,W2:0.6 I,W1:0.4 I,W0:0 I)共5个灌水水平,3个施氮水平(低氮N1:75 kg/hm^2,中氮N2:150 kg/hm^2,高氮N3:225 kg/hm^2),同时设置空白处理(W0N0),共计16个处理。结果表明:大豆产量最高的是W4N2处理,最高产量为1968.05 kg/hm^2,比处理W4N1和W4N3分别增长42.43%和45.31%,水分利用效率WUE最高的为W3N3处理。本试验条件下,W3N3处理比对照组W4N2产量下降5.72%,水分利用效率WUE增加7.50%,节约150.15 m^3/hm^2的灌水量。
The research studies the effects of different water and nitrogen treatments on soybean yield,dry matter quality and water use efficiency through field trials in the Heilonggang Basin.The experiment set two factors of irrigation volume and nitrogen application volume.16 treatments were set,which included five levels for irrigation volume,including full irrigation(W4:irrigation volume is 1.0 I)and deficit irrigation(W3:0.8 I,W2:0.6 I,W1:0.4 I,W0:0 I),3 levels of nitrogen application(low nitrogen N1:75 kg/hm^2,medium nitrogen N2:150 kg/hm^2,high nitrogen N3:225 kg/hm^2)and blank treatment(W0N0).The results showed that the W4N2 treatment had the highest yield of soybeans,and the highest yield was 1968.05 kg/hm2,an increase of 42.43%and 45.31%respectively compared with the treatment of W4N1 and W4N3.Under the conditions of this experiment,the W3N3 treatment decreased 5.72%compared with the control group W4N2,and the water use efficiency WUE increased by 7.50%,saving 150.15 m^3/hm^2 of irrigation water.
作者
卢晓鹏
陈任强
高惠嫣
刘宏权
LU Xiaopeng;CHEN Renqiang;GAO Huiyan;LIU Hongquan(Urban and Rural Construction Institute,Hebei Agricultural University,Baoding 071001,China)
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2020年第6期44-50,59,共8页
Journal of Hebei Agricultural University
基金
国家食用豆产业技术体系(CARS-08-G-22).
关键词
大豆
水氮互作
耗水量
水分利用效率
soybean
water-nitrogen interaction
water consumption
water use efficiency
