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近年来,在我县红麻施肥上重氮轻磷,很少施钾,麻区土壤氮磷钾比例严重失调,缺磷面积占总耕地面积的96.98％,缺钾面积占66.34％。因此,增加投入,解决土壤氮磷钾比例失调,改革不合理的施肥方法,成为当前红麻生产中急待解决的问题。1986～1987年,我们在本县通海等麻区进行了测土配方施肥的试验研究,应用Stanford提出的方法确定某种肥料需要量,进行氮、磷、钾三种化肥合理配合施用。大面积生产示范
In recent years, fertilizers on kenaf in our county are nitrogen and phosphorus deficient, potassium is rarely applied, and N, P and K ratios in the soil are severely imbalanced. The area of phosphorus deficiency accounts for 96.98% of the total cultivated land and the area of potassium deficiency accounts for 66.34%. Therefore, it is an urgent problem to be solved in the current production of kenaf to increase investment, solve the imbalance of N, P and K in soil and reform irrational fertilization methods. From 1986 to 1987, we conducted a pilot study on soil testing and formula fertilization in the Tonghai area of this county. We applied the method proposed by Stanford to determine the required amount of fertilizers and applied the three nitrogen, phosphorus and potassium fertilizers rationally. Large-scale production demonstration