辽宁地区苜蓿干草收获技术研究  

Research on harvesting technology of alfalfa hay in Liaoning region

作　　者：王坤龙 宋彦君 徐璐美 陈艳娟 白春生[2] 王伟 尹强[4] WANG Kun-long;SONG Yan-jun;XU Lu-mei;CHEN Yan-juan;BAI Chun-sheng;WANG Wei;YIN Qiang

机构地区：[1]沈阳茂源草业有限公司,辽宁沈阳110164 [2]沈阳农业大学园艺学院,辽宁沈阳110866 [3]呼伦贝尔学院农林学院,内蒙古呼伦贝尔021008 [4]中国农业科学院草原研究所,内蒙古呼和浩特010010

出　　处：《饲料研究》2023年第17期109-112,共4页Feed Research

基　　金：现代农业国家牧草产业技术体系鄂尔多斯综合试验站(项目编号:CARS-34)。

摘　　要：试验旨在确定辽宁地区苜蓿干草最适收获条件。试验以“康赛”紫花苜蓿为试验材料,测定不同刈割期、刈割次数和留茬高度对苜蓿干草产量、品质及越冬的影响。结果表明,随着刈割期推迟,苜蓿的营养品质明显下降,干草产量明显增加(P<0.05)。随着刈割次数增加,苜蓿的干草产量和越冬率变化不显著(P>0.05)。留茬高度越高,第三茬苜蓿的营养成分、越冬率显著提高(P<0.05),干草产量显著下降(P<0.05)。研究表明,辽宁地区苜蓿干草初花期收获最佳,全年刈割3次较为合理,留茬高度5~8 cm,末次刈割留茬高度10~13 cm为宜。The experiment was to screening out the optimum hay harvest conditions of alfalf in Liaoning.Kangsai alfalfa was used as the experimental material in the experiment,the influence of different cutting periods,cutting times and stubble heights on yield,quality and overwintering of alfalfa hay were measured.The results showed that nutritional quality of alfalfa decreased significantly and hay yield increased significantly with the delay of mowing(P<0.05).With the increase of mowing times,the hay yield and overwintering rate of alfalfa did not change significantly(P>0.05).The nutrient composition and overwintering rate of alfalfa in the third crop were significantly increased with the increase of stubble height(P<0.05),while hay yield was significantly decreased(P<0.05).The experiment indicates that the harvest of alfalfa hay in Liaoning was the best at the first flowering stage,and it is reasonable to mow three times a year.The height of the stubbble is 5~8 cm and the height of the last mowing is 10~13 cm.

关 键 词：苜蓿 刈割次数 营养成分 干草产量 越冬 

分 类 号：S816[农业科学—饲料科学]