【摘要】 本文在北方潮土区进行了夏玉米施磷效果试验研究 .设计 6个施磷 P2 O5 水平 ,即0、4 5、69、93、1 1 7、1 4 1 kg/ hm2 .试验结果表明 :施磷可促进夏玉米生长发育 ,增强其抗病、抗旱性 ,并对夏玉米产量构成因素影响较大 .最后指出 ,施磷水平为 93kg/ hm2 ,施磷量比较经济合理 .更多还原

【Abstract】 Effect of applying phosphate fertilizer to summer corns was studied in northern meadow soil district. Six phosphate fertilzer levels,i.e.0,45,69,93,117,141 kg/hm 2 were designed.The experiment showed that application of phosphate fertilizer can advance summer corn’s growth and improve its disease and drought resistance.And phosphate fertilizer application affected yield’s component factors much.Then it was pointed out that when the phosphate fertilizer level was 93 kg/hm 2,the amount of applying phosphate fertilizer was economical and reasonable.更多还原