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科学合理施用化肥,充分发挥化肥肥效,对提高单位面积产量,增加总产起到了重要作用。但当前我省化肥在施用中仍然存在以下问题: 氮磷钾施用比例不协调,缺磷少钾问题比较突出据我省土壤养分状况及近年来化肥试验结果分析,应把全省N、P、K化肥使用比例调整为1∶0.5～0.6∶0.2～0.3,但目前我省氮、磷、钾施用比例为1∶0.4∶0.08,这种比例结构极不合理。
Scientific and rational application of fertilizers, give full play to fertilizer efficiency, to improve yield per unit area, increase the total output has played an important role. However, the current application of fertilizers in our province still has the following problems: N, P and K application rate is not coordinated, lack of phosphorus and potassium less prominent According to the status of soil nutrients and fertilizer test results in recent years, the province should be N, P, K fertilizer to adjust the proportion of 1: 0.5 ~ 0.6: 0.2 ~ 0.3, but at present, the proportion of nitrogen, phosphorus and potassium in our province is 1: 0.4: 0.08, the proportion of the structure is extremely unreasonable.