【摘要】 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P₂O₃）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。更多还原

【Abstract】 Pot and field experiments were carried out to study some factorsinfluencing the effect of phosphatic fertilizer on pea,The results sh-owed that the effect of phosphatic fertilizer of pea,just like wheatand maize,had no relationship with soil organic matter,total N,totalP and CaCO₃,but had good relationship with,available phosphorus insoil.The amounts of available phosphorus in soil were positively correlated with pea yields and with the quantities of phosphorus uptakeby planfs,and negatively correlated with the increased yields andpercentage from application of phosphatic fertilizer.The phosphaticfertilizer lost its effect on pea when available phosphorus in soil wasabove 3.o rag P₂O₅ per 100g dry soil.Pea belongs to legume,having Rhizobium to fix nitrogen,so that the effect of phosphatic fertilizer wasnot limited by the supplying capacity of soil nitrogen.The application of N fertilizer could not raise the phosphatic fertilizer effect,Infact,the reverse Was observed.As to the pea yield,production potential and phosphorus uptake are lower,the amounts of phosphatic fertilizer to be applied to pea should be lower than those to wheat in thesame condition更多还原