八五八农场水稻钾肥施肥分区的研究

摘要

To ascertain the fertilizing rule under different soil fertility,the spatial interpolation method was used to calculate soil nutrient value of 858 farm in Heilongjiang province,then the cluster analysis was used to divide 4 different nutrient partition,where the representative experiment spot 3414 was selected to build potash fertilizer effect equation.The fertilizing amount was calculated when the highest production was obtained,which could provide a certain reference basis for potash fertilizer in farm.%为了探明不同地力条件下的施肥规律，对黑龙江农垦八五八农场利用空间插值法计算地块的土壤养分值，采用聚类分析的方法，将全场耕地划分为4个不同养分分区（肥力分区）。在4个肥力分区中选择了有代表性的3414试验点，建立了钾肥的肥料效应方程，计算出最高产量施肥量，为农场钾肥施用提供参考依据。