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以商豆6号为研究对象,探讨了高产夏大豆品种干物质积累和氮磷钾吸收特点。结果表明:在3 784.5 kg.hm-2产量水平下,商豆6号干物质积累以结荚～鼓粒期最快,占总积累量的53.68%,日均生长量450.55 kg.hm-2;结荚～鼓粒期氮、磷、钾吸收量最多,分别占总吸收量的47.27%、43.98%和46.54%;每生产100 kg籽粒,需要吸收N 8.25 kg、P2O51.97 kg、K2O 4.24 kg。综合分析,商豆6号高产应特别注意营养生长期肥料的配施,磷钾肥要集中基施,始花期追施氮肥,中后期喷施叶面肥。
Taking Shang Dao No.6 as research object, the characteristics of dry matter accumulation and N, P and K absorption of high-yield summer soybean were discussed. The results showed that under 3 784.5 kg · hm-2, the dry matter accumulation of Shangdan 6 was the fastest in pod-to-drum, accounting for 53.68% of the total accumulation and the average daily growth was 450.55 kg.hm-2 ; N, P and K uptake during the pod-druming stage were the largest, accounting for 47.27%, 43.98% and 46.54% of the total respectively; N 8.25 kg, P2O51.97 kg and K2O 4.24 kg. Comprehensive analysis, Shang Dou 6, high yield should pay special attention to nutrition and fertilizer application period, phosphorus and potassium fertilizer to focus on facilities, the first flowering topdressing nitrogen fertilizer, spraying foliar fertilizer in the late.