论文部分内容阅读
本试验对大方县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,在未试验条件下小麦产量与有机肥和磷肥(普通过磷酸钙)的施肥量呈直线关系,与尿素施用量呈典型的曲线关系。施用有机肥与磷肥对小麦产量的提高有着重要的作用,而氮肥的施用要适量不宜过多。
In this experiment, the balanced fertilization of wheat in Dafang County was studied, and the parameters of wheat balanced fertilization and the best fertilization program were obtained. The results showed that there was a linear relationship between the yield of wheat and that of organic manure and phosphate fertilizer (common superphosphate) under un-tested conditions, and the typical curve of urea application rate was linear relationship. Application of organic fertilizer and phosphate fertilizer on the improvement of wheat yield has an important role, while the amount of nitrogen fertilizer should not be too much.