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试验结果表明 ,土壤缺钾是该试验的主要养分限制因子之一 ;在NP基础上施钾肥增产 5 5 0 6 % ;有机无机肥料配合施用 ,比单施有机肥增产 4 5 0 1% ,比单施化肥仅增产 3 88% ,并可提高油荬菜的商品质量 ;化肥的利用率为 6 2 11% ,钾肥的利用率为 77 90 %。
The results showed that potassium deficiency in soil was one of the main nutrient limitation factors in this experiment. Potassium fertilization was increased by 550.6% based on NP. Compared with single organic fertilizer application, organic and inorganic fertilizer increased the yield by 45 501% The yield of fertilizer alone increased by only 3 88%, and the quality of oilseed rapeseed products could be improved. The utilization rate of chemical fertilizers was 6211% and that of potash fertilizer was 77 90%.