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试验表明,豌豆同小麦、玉米等非豆科作物一样,其磷肥肥效与土壤有机质、全氮、全磷、碳酸钙等无密切关系,而与土壤有效磷含量有密切的线性关系。土壤有效磷含量与豌豆产量以及吸磷量呈密切的负相关。土壤有效磷含量约大干3.0毫克(每百克土的P_2O_3)时,对豌豆施磷已无增产效果。豌豆磷肥效果不受土壤供氮水平的限制,施用氮肥不仅不能提高磷肥的效果,反而有降低磷肥效果的趋势。豌豆生产潜力不如小麦,过多的磷肥只能增加体内的磷素含量,而不能持续提高其产量,因此,对豌豆施磷应比同样条件下的小麦为低。
Tests showed that pea, like wheat and corn and other non-leguminous crops, had no close relationship with soil organic matter, total nitrogen, total phosphorus and calcium carbonate, but had a close linear relationship with soil available phosphorus. Soil available P content was closely negatively correlated with pea production and P uptake. Soil available P content is about 3.0 mg (P_2O_3 per 100 g soil), no effect on pea phosphorus application. The effect of pea phosphate fertilizer is not limited by the level of soil nitrogen supply. Applying nitrogen fertilizer not only can not increase the effect of phosphate fertilizer, but tends to reduce the effect of phosphate fertilizer. Peas production potential is not as good as wheat, too much phosphate can only increase the body’s phosphorus content, but can not continue to increase its production, therefore, peas phosphorus should be lower than the same conditions of wheat.