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豫东供钾不足的沙壤土地，种植花生时补施钾肥增产效果明显。在农民习惯施肥的基础上，每公顷增施Ｐ２Ｏ５６０ｋｇ、Ｋ２Ｏ１８０ｋｇ，可增收荚果６６７．３５ｋｇ，增收籽仁５７５．４ｋｇ，增产幅度分别为１７．４９％和２１．３８％。同时，这种处理的穴均果数、饱果率、出仁率较对照分别高出３．９个、１６．８个、２．５１个百分点，属本试验的最佳处理。但在氮磷投入相等的情况下，每公顷补施１２０ｋｇ氧化钾的处理，其投入产出比最为理想。试验表明钾肥能使花生植株生长健壮，抗逆性增强，开花多，结果多、饱果率提高，仁重增加品质好
Lack of potassium in the east of the soil in the loamy soil, planting peanuts when potassium supplementation effect is obvious. On the basis of peasants' habit of applying fertilizers, P2O560kg and K2O180kg can be added per hectare, which can increase 667.35kg of pods and increase 575.4kg of kernels, yield increase of 17.49% and 21.38% respectively. At the same time, the average number of fruit per hole, full fruit rate and kernel yield of this treatment were 3.9, 16.8 and 2.51 percentage points higher than that of the control respectively, which is the best treatment for this experiment. However, in the case of equal input of nitrogen and phosphorus, the treatment of 120 kg of potassium per hectare, its input-output ratio is the most ideal. Tests showed that potash fertilizer can make the peanut plant grow robustly, the stress resistance is enhanced, the flowering is more, the result is more, the full fruit rate is increased, the kernel weight is increased and the quality is good