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磷、钾是植物正常生长发育所必需的大量元素,红麻又是对磷、钾肥需要量较多的作物。长期以来,栽培红麻都是单一地用氮素化肥,磷钾肥得不到补充,造成氮、磷、钾比例失调,影响了红麻的生长及产量的进一步提高。1982～1984年我们连续进行了增施磷钾肥试验,取得了很好效果。 一、促进产量提高 据三年9个点试验,红麻施钾肥平均增产8.28％,施磷肥平均增产6.53％(表1)。
Phosphorus and potassium are a large number of elements necessary for the normal growth and development of plants. Kenaf is also a crop requiring more phosphorus and potassium fertilizer. For a long time, cultivated kenaf is a single use of nitrogen fertilizers, phosphorus and potassium can not be supplemented, resulting in the imbalance of nitrogen, phosphorus and potassium, affecting the growth of kenaf and yield to further improve. From 1982 to 1984, we conducted a series of experiments for increasing phosphorus and potassium fertilizers and achieved good results. First, to promote increased production According to three years of nine-point test, average yield of kenaf fertilizer increased 8.28%, phosphorus fertilizer average yield of 6.53% (Table 1).