吉林地区中等肥力冲积土壤施钾量对玉米产量的影响

摘要

为探讨吉林地区冲积土钾肥的施用效应,采用单因素随机区组试验,以玉米为供试作物,对中等肥力冲积土玉米施用钾肥效应进行研究.结果表明:吉林地区中等肥力冲积土玉米施用钾肥的效果显著,钾肥用量与玉米产量呈二次曲线关系,拟合方程为y=7827.43+31.20x-0.156lx2.%In order to investigate the potassium fertilizing effect on middle fertility alluvial soil in Jilin region, a single-factor randomized block test was conducted to explore the effects of potassium on maize yield in middle fertility alluvial soil. The results showed that there was significant effect on maize when applying potassium fertilizer in middle fertility alluvial soil in Jilin region. There was quadratic curvilinear relationship between potassium fertilizing amount and maize yield, the fitted equation was y = 7 827. 43 + 31.20x-0. 156lx2.