摘要
试验旨在提高饲草的产量和品质,将不同蔓生型饲草大豆与青贮玉米同行、带状复合种植,测定混合饲草的产量和营养指标,通过聚类和主成分分析筛选出综合性状最优的饲草大豆种质及对应的栽培模式。结果显示:混合种植饲草产量、粗蛋白含量、干物质消化率、干物质采食量和相对饲用价值显著高于单种青贮玉米(P<0.05)。混合饲草通过系统聚类分为3个类群,第Ⅰ类群包括FML10与青贮玉米带状、同行复合种植的混合饲草,FML2与青贮玉米同行复合种植的混合饲草,上述3种饲草为丰产和高相对饲用价值类。主成分综合评价得分第一位的是FML10与青贮玉米带状复合种植的混合饲草。研究表明,FML10青贮玉米带状复合种植为宁夏引黄灌区适宜种植模式。
The experiment was to improve the yield and quality of forage,different creeping forage soybean and silage corn were planted in the same line and strip,the yield and nutritional indexes of mixed forage grass were measured,and the forage soybean seed quality with the best comprehensive characters and the corresponding cultivation mode were selected through cluster and principal component analysis.The results showed that the yield,crude protein content,dry matter digestibility,dry matter intake and relative feed value of mixed forage were significantly higher than those of silage corn(P<0.05).The mixed forage was divided into three groups through systematic clustering.The first group included the mixed forage planted by FML10 and silage corn in the same line and strip,and the mixed forage planted by FML2 and silage corn in the same line.These three forages were high-yield and high relative forage value.The mixed forage of FML10 and silage corn was the first in the comprehensive evaluation score of principal components.The study indicates FML10 silage corn strip compound planting is a suitable planting mode in Ningxia Yellow River Diversion Irrigation area.
作者
连金番
赵志刚
罗瑞萍
姬月梅
王劲松
马俊奎
赵晶云
沈静
LIAN Jin-pan;ZHAO Zhi-gang;LUO Rui-ping;JI Yue-mei;WANG Jin-song;MA Jun-kui;ZHAO Jing-yun;SHEN Jing
出处
《饲料研究》
CAS
北大核心
2022年第8期90-94,共5页
Feed Research
基金
宁夏农林科学院对外科技合作专项(项目编号:DW-X-2020001)
自治区农业科技自主创新专项-科技创新引导项目项目(项目编号:NKYG-20-01)
自治区重点研发计划项目(项目编号:2020BFH03008)
宁夏回族自治区自然科学基金(项目编号:2020AAC0338)
国家大豆产业技术体系银川综合试验站建设专项(项目编号:CARS-04)。
关键词
饲草大豆
青贮玉米
复合种植
forage soybean
silage corn
compound planting
