种植行距对苜蓿产量、品质的影响  

Effect of Planting Row-spacing on Yield and Quality of Alfalfa

作　　者：王晓龙 依茹 杨曌 钟鹏 徐艳霞 柴华 李莎莎 吴玥 高海娟 王建丽[3] WANG Xiao-Long;YI Ru;YANG Zhao;ZHONG Peng;XU Yan-xia;CHAI Hua;LI Sha-sha;WU Yue;GAO Hai-juan;WANG Jian-li(Branch of Animal Husbandry and Veterinary of Heilongjiang Academy of Agricultural Sciences,Qiqihar,Heilongjiang 161005;People's Government of Angsu Town of Otok Front Banner of Ordos,Ordos,Inner Mongolia 016208;Institute of Grass Science of Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang150086)

机构地区：[1]黑龙江省农业科学院畜牧兽医分院,黑龙江齐齐哈尔161005 [2]鄂尔多斯市鄂托克前旗昂素镇人民政府,内蒙古鄂尔多斯016208 [3]黑龙江省农业科学院草业研究所,黑龙江哈尔滨150086

出　　处：《呼伦贝尔学院学报》2023年第5期97-102,共6页Journal of Hulunbuir University

基　　金：2022年黑龙江省自然科学基金资助项目“龙牧801苜蓿越冬期根系分泌物与根际微生物互作响应机制研究”(YQ2022C033);2021年齐齐哈尔市科技计划项目“秋眠型苜蓿种质资源挖掘与利用研究”(CNYGG-2021009)。

摘　　要：为探讨种植行距对苜蓿产量和品质的影响,以龙牧801为试验材料,通过对不同种植行距(15cm、20cm、30cm)下苜蓿生长特性、产量及营养成分等指标的测定与分析,确定适宜呼和浩特地区种植的最佳行距。结果表明:苜蓿20cm行距的株高和生长速度最高,茎叶比最小;30cm行距鲜干比最高;苜蓿20cm行距的产量最高,为12946.32kg·hm-2,显著高于其他行距(P<0.05);20cm行距的粗蛋白(20.54%)和相对饲用价值(128.43%)最高,而中性洗涤纤维(46.65%)和酸性洗涤纤维(31.44%)却最低。依据苜蓿生长特性、产量及营养成分的综合表现,利用隶属函数法对行距的生产性能进行评价,得出生产性能强弱顺序为:20cm行距>15cm行距>30cm行距,最终确定适宜呼和浩特地区种植的行距为20cm。This study was aimed to investigate the effects of planting row-spacing on yield and quality of alfalfa.Longmu 801 was used as the test material.The growth characteristics,yield and nutrient composition of alfalfa under different planting row-spacing such as 15cm,20cm and 30cm were measured and analyzed to determine the best row-spacing suitable for planting in Hohhot.The results showed that the plant height and growth rate of alfalfa with 20cm row-spacing were the highest,and the stem-leaf ratio was the lowest;the fresh-dry ratio of 30cm row-spacing was the highest;The yield of alfalfa with 20cm row-spacing was 12946.32kg·hm-2,which was significantly higher than that of other row-spacing(P<0.05);The contents of crude protein(20.54%)and relative feeding value(128.43%)in 20cm row-spacing were the highest,while the contents of neutral detergent fiber(46.65%)and acid detergent fiber(31.44%)were the lowest.Based on the growth characteristics,yield and nutrient composition of alfalfa,using the membership function method to evaluate the production performance of the row-spacing,the order of the production performance is as follows:20cm row-spacing>15cm row-spacing>30cm row-spacing.Finally,20cm row-spacing was determined to be suitable for planting in Hohhot.

关 键 词：苜蓿 行距 产量 营养成分 比较 评价 

分 类 号：S541[农业科学—作物学]