【摘要】 通过对土壤供水能力和作物生长关系的研究表明 ,随灌水量的增加 ,春小麦总耗水量明显增加 ,土壤储水消耗量相应减少。覆膜土壤储水高于露地栽培。同时 ,植株性状发育优于露地 ,产量也得到提高 ,增幅在 8.3%～ 18.3%。不同灌溉制度对春小麦产量结构与产量有显著影响 ;灌 1次水以孕穗期 ,灌 2次水以拔节期和扬花期 ,灌 3次水以拔节期、孕穗期和扬花期灌水效果最佳。更多还原

【Abstract】 The experiments results showed that the total water consumpation of spring wheat increased,and soil storage water consumpation decreased in proportion to the increment of irrigated water.Covered with film,soil storage water was higher and the yield was increased to 8.3% ～18.3% compared with that of bunch planting.The yield and their components of spring wheat changed significantly under different irrigating systems.Irrigation once at booting stage was the best.Two times of irrigation should be given at jointing stage and flowering stage,and three times of irrigation should be given at jointing stage,flowering stage and grain filling stage.更多还原