摘要： 混播牧草改良盐碱荒地具有明显效果。选择苜蓿、草木樨、冰草、披碱草、老芒麦、野大麦、碱茅等耐盐牧草, 根据盐碱含量确定草种组合及比例, 播种量为22.5～30.0kg/hm²；整地后不起垄, 平地撒播；生长当年除2次杂草。牧草生长第2年和第3年平均干草产量分别达到9043.3 kg/hm²(含草木樨)和3173.7kg/hm²。产量分别是原始植被的5.6倍和2.0倍。优质牧草占总产量的81.2%和77.1%。牧草播种当年碱斑较大, 次年碱斑缩小, 第3年碱斑全部消失, 牧草均匀覆盖地面, 长势旺盛。

关键词: 盐碱地, 混播牧草, 建植技术

Abstract: Obvious effect was obtained for improvement saline and alkaline land by mixed sown saline tolerance forage , alfalfa, sweet clover, crested wheatgrass, lyme grass, Siberian wildryegrass, wild barley, weeping alkaligrass have been used in this experiment. sowing rate was 22.5～30.0kg/hm²according to species compensation in level planting, weeds elimination two times in first year. Production of forage can reached 9043.3kg/hm² and 3173.7kg/hm² in second and third year respectively. Its 5.6 and 2 times more than original grassland .high quality forage is 81.2%and 77.1% in total production. Alkaline sport were bigger in first year, and then decreased in second year , disappear in third year .forage vigorous and cover land welldistrbuted.

Key words: Saline and Alkaline Land, Mixed Sown Forage, Techniques of Establishment

中图分类号: 

• S540.47

• S156.4