摘要
为了探究紫花苜蓿合理刈割时期及技术,于2016—2017年在哈尔滨地区对农菁8号紫花苜蓿的适宜刈割方式(刈割时期和留茬高度)进行了研究,综合分析了刈割时期、留茬高度对紫花苜蓿产量、营养成分含量的影响。结果表明:最终的优化组合为第1,2,3次刈割时期为孕蕾末期,留茬高度为5 cm;孕蕾期粗蛋白含量达20%以上,若想获得最大总蛋白量可选择在孕蕾期刈割,孕蕾末期粗蛋白含可达到18%以上,如若作为青饲料使用选择在孕蕾末期刈割最佳。
In order to explore the rational cutting period and technology of alfalfa,the optimal mowing period and stubble height were studied in Harbin area from 2016-2017,and the effect of mowing period and times on the yield and nutrient content of alfalfa was considered.The results show that the optimal mowing period is the first,second and third time,and the height of the stubble is the most reasonable.The results of nutritional analysis show that the maximum total protein yield can reach 20%,can choose to mow in the gestation stage,can be used as green feed, crude protein can reach more than 18%,choose the best mowing in the end of the bud.
作者
刘杰淋
朱瑞芬
刘凤歧
申忠宝
韩微波
王建丽
陈积山
李佶恺
LIU Jielin;ZHU Ruifen;LIU Fengqi;SHEN Zhongbao;HAN Weibo;WANG Jianli;CHEN Jishan;LI Jikai(Institute of Pratacultural Sciences,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China)
出处
《黑龙江畜牧兽医》
CAS
北大核心
2018年第23期126-130,共5页
Heilongjiang Animal Science And veterinary Medicine
基金
国家重点研发计划专项“东北黑土区侵蚀沟生态修复关键技术研发与集成示范”(2017YFC0504200)
黑龙江省农业科学院院级科研项目“紫花苜蓿资源精准鉴定与评价”(2017BZ05)
