试论肥效方程Y=a+bX+cX^2中的R=100-[(100-ω)/10]~2恒等关系及其应用

APPLICATION AND IDENTICAL RELATIONSHIP FOR THE QUADRATIC FUNTION OF FERTILIZER EFFECT

在常用的肥料效应方程Y=a+bX+cX^2基础上,建立肥料增产量方程y=BX+CX^2。利用其中的特有关系R=100-[(100-ω)/10]~2,即施肥量占最高施肥量的百分值(ω)与增产量占最高增产量的百分值(R)之间的恒等关系,试求获得最高产量(区间)或最高利润(区间)的适宜施肥量,以及选择高产高利施肥量的方法。

R=100-[-(100—ω)/10]~2 was picked up in the quadratic function y=a+bX+cX^2 (R=[(y—a) / (y—a)_(max)]%, ω= (X/X_m)%).This is a new relation, it has proved:When max/mum amount of fertilizer applied of equation of fertilizer effect is used, it may be reduced by about 20%.