刈割时期对不同类型牧草产量和品质的影响

Effects of Cutting Times on Yield and Quality of Different Forage Grasses and Alfalfa Varietiesl

文章对8个不同类型牧草品种在呼和浩特地区不同刈割期的产量和品质进行研究,结果表明,苜蓿的最佳刈割期是初花期,其鲜、干草产量最高;禾本科牧草的最佳刈割期是盛花期。8个牧草品种在盛花期刈割鲜草年产量显著高于现蕾期。苜蓿品种年鲜、干草产量间差异不显著,但均明显高于禾本科牧草。粗蛋白年产量,苜蓿以现蕾期刈割最高,禾本科牧草盛化期刈割最高。粗脂肪年产量,苜蓿以初化期刈割最高,禾本科牧草则以盛化期刈割时较高。同期相比,苜蓿的蛋白和脂肪产量均高于禾本科牧草。综合产量和品质表现认为,紫花苜蓿 FGC-301、FGC-201及无芒雀麦适合在呼和浩特地区推广种植。

The yield and quality of different forage grasses and alfalfa varieties in different cutting times were studied in this trial.The results indicated the suitable cutting period of alfalfa was earlier flowering stage, and grass and hay yield in the stage were highest;the suitable cutting period of forage grass was flowering stage.Grass and hay yield of different alfalfa cultivars had no much difference significantly,while higher than yield of forage grasses.Crude protein yield of alfalfa was highest when cutting in squaring stage and crude protein of forage grasses was highest in flowering stage.Crude fat yield of alfalfa was highest when cutting in earlier flowering stage and crude fat of forage grasses was highest in multi-flowering stage.And in same cutting period,crude protein and crude fat yield of alfalfa were higher than forage grasses.Comprehensive evaluation from vield and quality,FGC-301 and FGC-201 in alfalfa varieties and awnless brome were adanted in Hobbot.