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通过对毕节地区小麦平衡施肥进行研究,得出小麦平衡施肥的参数及最佳施肥方案。研究结果表明,小麦产量与有机肥的施用量呈直线关系,而与化肥的施用量各县表现却不同,大方县小麦产量与磷肥(普通过磷酸钙)的施用量三直线关系,毕节市、黔西县施用量是曲线关系,各试验点小麦产量均与尿素施用量呈典型的曲线向下关系。施用有机肥与磷肥对小麦产量的提高有着重要作用。而氮肥的施用不宜过多。
By researching the wheat balanced fertilization in Bijie region, the parameters of wheat balanced fertilization and the optimal fertilization scheme were obtained. The results showed that there was a linear relationship between the yield of wheat and the application rate of organic fertilizer, but different from that of chemical fertilizer. The yield of wheat in Dafang County had a linear relationship with the application rate of phosphate fertilizer (common superphosphate) Qianxi County is the curve of the amount of application, the test point of wheat yield and urea application showed a typical curve downward relationship. Application of organic manure and phosphate fertilizer have an important effect on the increase of wheat yield. The application of nitrogen should not be too much.