不同肥水耦合对黄瓜产量品质及肥料偏生产力的影响

蒋静静,屈锋,苏春杰,杨剑锋,余剑,胡晓辉

Effects of Different Water and Fertilizer Coupling on Yield and Quality of Cucumber and Partial Factor Productivity of Fertilizer

JIANG JingJing,QU Feng,SU ChunJie,YANG JianFeng,YU Jian,HU XiaoHui

表4 水肥投入与产量、水分利用效率、肥料偏生产力和硝酸盐含量之间的回归关系

Table 4 Regression equation for response variable of yield, water use efficiency, partial factor productivity of fertilizer and nitrate content with irrigation and fertilization amount

因变量Response variable Y 回归方程Regression equation R2 P 产量Yield Y1=-1.818+0.0649F +0.1003W +1.6974×10-3 F2-4.0833×10-4W2-2.226F×10-3W 0.8572 0.0001 水分利用效率Water use efficiency Y2=-36.4327+4.655F +1.6539W -4.4328×10-2F2-9.4245×10-3W2-5.923×10-2FW 0.8340 0.0001 肥料偏生产力Partial factor productivity of fertilizer Y3=46.723-17.763F +8.988W +0.7707F2-3.099×10-2W2-0.2706FW 0.9218 0.0001 硝酸盐含量Nitrate content Y4=314.643-10.939F +2.773W +1.386F2-3.410×10-2W2-0.1948FW 0.9757 0.0001