地下滴灌不同灌水量对苜蓿种子产量构成因子的影响

目的]研究地下滴灌不同灌水量对新牧1号杂花苜蓿种子产量及其构成因素的影响,为苜蓿种子生产提供理论依据和生产指导.方法]在60cm等行距苜蓿种子实验地中,每行铺设地下滴灌带,单次灌水量从150到900m3/hm2设置6个不同的处理.结果]灌水处理不同,单株花序数、每花序小花数、每英果种子数呈显著差异.当灌水总量达3...

Effect of Different Water Volumo of Subsurface Drip Irrigation on the Yield and Components of Alfalfa Seeds

【Objective】Research of the influence of different Water Volume of subsurface drip irrigation on seed yield components and seeds yield of Medicago varia Martin.cv.Xinmu No.1 was designed to provide theoretical references and the instruction for the production of the seeds.【Method】The underground drip irrigation belt every rows were laid and the single irrigation water was from 150 m3 / hm2 to 900m3/ hm2,6 different treatments were installed in the alfalfa experimental site where there was a 60 cm space betweer two rows.【Result】Different irrigation treatments have remarkable difference in inflorescence per plant,pod per inflorescence and seed number per inflorescence of alfalfa.When total irrigation amount reached 3 600 m3/hm2,and the single irrigation reached 600 m3/ hm2, the highest yield of 832.51 kg/hm2 can be obtained.【Conclusion】 From alfalfa's budding-initial flowering stage to pod stage,increasing irrigation frequency can raise seed yield.Using the subsurface drip irrigation in the production of alfalfa seeds,it can help to save water and increase the yield.