乌兰察布地区胡萝卜优化施肥方案初步研究

Recommendation of Optimal Fertilizer Application to Potato and Establishment of its Mathematic Model in WuLanChaBu

本试验通过正交旋转回归设计在乌兰察布地区选取氮、磷、钾和有机肥为参试变量,以胡萝卜产量为目标函数,建立了胡萝卜产量与参试因子间的数学模型,得出了各变量与产量的主次关系及各因素对产量的效应。最后,通过模拟寻优获得了本试验地条件下胡萝卜产量高于6000kg/667m2的施肥方案:N(8.06-8.72kg/667m2)、P2O5(3.89-4.26kg/667m2)、K2O(19.10-20.45kg/667m2)、有机肥(6346-6907kg/667m2)。

Field experiment with the design of quadric circum-regression was performed in Wulanchabu, selecting N, P205, K20 and organic fertilizer as decision variables, and taking the yield of carrot as target function, we set up the mathematics model between the carrot yield and experimental factors. The mathematics model gave out the main and secondary factors affecting the yield, and the yield response of double factors. Finally, we obtain the optimization scheme of fertilizer use for the carrot yield of 6000kg/667m2 by using computer simulation in this experiment conditions; N （8.06-8.72kg/667me）, P205 （3.89-4.26kg/667m2）, K20 （19.10-20.45kg/667m2） , Organic fertilizers （6346-6907kg/667m2 ）