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１０３７％；而氮、钾充足时，则可增产小麦１５８４％。
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.
出处
《湖北农业科学》
1998年第3期37-39,共3页
Hubei Agricultural Sciences
关键词
小麦
磷肥
边际产量
wheat ( Triticum aestivum Linn.),phosphate fertilizer, marginal yield
