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通过田间试验及室内分析相结合的方法,研究了大豆专用复混肥对轮作、连作大豆氮、磷、钾营养及产量的影响。结果表明,与等氮磷养分的常规施肥相比,专用复混肥能显著提高鼓粒期大豆植株氮、磷、钾积累量、肥料利用率和成熟期产量。鼓粒期植株氮、磷、钾、干物质、籽粒蛋白质积累量间与产量间相关均达极显著。施用效果,连作大豆优于轮作大豆。
The effects of soybean special compound fertilizer on the nutrition and yield of nitrogen, phosphorus and potassium in cropping and continuous cropping soybean were studied through field experiment and indoor analysis. The results showed that, compared with conventional nitrogen and phosphorus fertilizers, the special compound fertilizers could significantly increase the nitrogen, phosphorus and potassium accumulation, fertilizer utilization rate and maturity yield of soybean plants at the drumming stage. The correlations among nitrogen, phosphorus, potassium, dry matter and grain protein accumulation and grain yield in drum-stage plants were all significant. Application effect, continuous crop soybean is better than rotation.