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南丰县市山公社坪埠大队第一生产队1979年于花生开花、下针结荚期进行根外喷施磷酸二氢钾试验,结果证明:喷施磷酸二氢钾的比对照荚果重增加12％,增产20％。 由于花生属豆科植物,根部的根瘤能固定空气中的氮素,因而对磷、钾的需要显得更突出,尤其在开花、下针结荚期,对磷、钾素需要更多,其吸收量占整个生育期吸收总量的百分比,磷素为68％左右,钾素为88％左右。在这个时期进行根外追施磷、钾肥。使植株直接吸收到较多的磷、钾素养料,可加速碳水化合物运输和积
Nanfeng County, the commune Pingshu Brigade team first production team in 1979 peanut flowering, the next pin pod spraying root application of potassium dihydrogen phosphate test results show that spraying potassium dihydrogen phosphate than the control pod weight increase of 12 %, Increase 20%. Because peanut is a leguminous plant, root nodules can fix the nitrogen in the air, so the need for phosphorus and potassium is more prominent, especially during the flowering and podding stage, and need more for phosphorus and potassium, and their absorption The amount of the total amount of growth during the entire period of absorption, phosphorus is about 68%, potassium is about 88%. Phytophthora and potassium fertilizer were used during this period. Direct absorption of plants to more phosphorus and potassium nutrients, can accelerate the transport of carbohydrates and product