小麦施磷效果的研究  

Study on effects of applying phosphate to winter wheat

作　　者：张礼福[1] 

机构地区：[1]华中农业大学农学系

出　　处：《湖北农业科学》1998年第3期37-39,共3页Hubei Agricultural Sciences

摘　　要：田间试验结果表明，供试土壤速效磷含量为１０～１１ｍｇ／ｋｇ的条件下，小麦适宜施磷量为６０ｋｇ／ｈｍ２Ｐ２Ｏ５。施磷不足，既影响小麦生长、延迟分蘖、降低产量，又消耗土壤中的磷。当小麦施磷量适宜，氮、钾不足时，施磷只增产小麦１０３７％；而氮、钾充足时，则可增产小麦１５８４％。The field experiment results showed that,under the conditions of 10 11 mg/kg of quick acting phosphorus of experimental soil, 60kg/hm 2P 2O 5 of P application were suitable.The yields of wheat and phosphorus of soil were a drop when the amounts of P application were not enough.Under the condition of good amount of P application and inadequate N,K of soil treatment (4)is increase production by 10 37 per cent,as the N,K of adequate amounts it has increased 15 84 per cent.

关 键 词：小麦 磷肥 边际产量 

分 类 号：S512.106.2[农业科学—作物学]