肥料对提高山旱地小麦水分利用率的研究

临汾东西两山旱地麦区，土壤瘠薄，小麦对自然降水利用率很低。１９９２～１９９４年增施肥料、培肥地力试验结果表明，亩施５０ｋｇ有机肥，小麦水分利用率可提高０．００３８ｋｇ／亩·ｍｍ；亩施纯氮、纯磷各１ｋｇ，小麦水分利用率分别提高０．００７８和０．０１１ｋｇ／亩·ｍｍ。

Effects of Fertilizers on Water Use Efficiency of Wheat in Mountainous Areas

Hungry soil and hence the low water use efficiency (WUE) is a major problem for wheat production in the mountainous wheat growing areas on the east and west of lin fen, shanxi province. Increasing fertilizer application,especially chemical fertilizers is an effective measure to increase WUE of wheat in this area, the trials cawied out in 1992￣1994 showed that adding 50kg organic fertilizer,1kg net nitrogen and 1kg net phosphorus per mu can increase WUE of wheat by 0. 0038,0. 0078 and 0. 011kg/mu. mm respectively.