冬小麦氮肥和磷肥总量控制试验研究

[目的]优化冬小麦氮肥和磷肥的适宜用量。[方法]采用田间试验，研究了氮肥和磷肥施用量对冬小麦产量的影响。[结果]氮肥的施用量与小麦产量的二次模拟函数为 y=-0.6611x2+20.091x+234.85，相关系数为0.9708，冬小麦产量达到最高时的氮肥施用量为228.0 kg/hm2。磷肥的施用量与冬小麦产量的二次模拟函数为 y=-0.5726x2+13.168x+340.4，相关系数为0.92195，冬小麦产量达到最高时的磷肥施用量为172.5 kg/hm2。[结论]该研究为冬小麦合理施用氮肥和磷肥提供了科学依据。

Total Amount Control Test of Nitrogen Fertilizer and Phosphate Fertilizer on Winter Wheat

Objective] This study was conducted to optimize the suitable application amounts of nitrogen fertilizer and phosphate fertilizer for winter wheat. [Method] A field experiment was carried out to investigate the effects of the application amounts of nitrogen fertilizer and phosphate fertilizer on the yield of winter wheat. [Result] The quadratic simulation function between the application of nitrogen fertilizer and wheat yield was y=-0.6611x2+20.091x+234.85, with a correlation coefficient of 0.970 8, and the yield of winter wheat was the highest at the application amount of nitrogen fertilizer of 228.0 kg/hm2. The quadratic simulation function between the ap-plication of phosphate fertilizer and wheat yield was y=-0.572 6x2+13.168x+340.4, with a correlation coefficient of 0.921 95, and the yield of winter wheat was the highest at the application amount of phosphate fertilizer of 172.5 kg/hm2. [Conclu-sion] This study provides a scientific basis for the rational application of nitrogen fertilizer and phosphate fertilizer on winter wheat.