施用硼、钼肥对不同刈割期紫花苜蓿产量及粗蛋白含量的影响  

Effects of applying boron and molybdenum fertilizers on yield and crude protein content of alfalfa in different cutting periods

作　　者：陈萍 罗园园 李宏广 鲍举文 Chen Ping;Luo Yuanyuan;Li Hongguang;Bao Juwen(Agricultural Technology Extension and Service Center of Ningxia Agricultural Reclamation,Yingchuan 750011,China;Ningxia Agricultural Group Limited,Yinchuan 750011,China)

机构地区：[1]宁夏回族自治区农垦事业管理局农林牧技术推广服务中心,宁夏银川750000 [2]宁夏农垦集团有限公司,宁夏银川750000

出　　处：《农业科学研究》2021年第3期43-47,共5页Journal of Agricultural Sciences

摘　　要：为了解不同茬次的紫花苜蓿在施用微肥后产量及粗蛋白含量的变化,本试验采用单因素设计,以3年生金皇后为试验材料,研究了硼、钼肥对刈割4茬紫花苜蓿的株高、草产量及粗蛋白含量的影响。结果表明:4次刈割对紫花苜蓿株高和草产量影响为:第2茬>第1茬>第3茬>第4茬;且施用硼、钼肥处理株高和产量均高于不施肥处理。其中硼肥以B2(硼喷施0.2%)处理最高,钼肥处理以M2(钼喷施0.1%)处理最高,且喷施硼、钼肥的效果优于基施;无论是施硼肥还是钼肥,粗蛋白含量的变化趋势均呈反“L”形变化,其中刈割第4茬粗蛋白含量最高,第3茬最低,1茬、2茬次之。In order to know the changes that micro-fertilizers were used in different mowing periods on yield and crude protein content of alfalfa,this experiment used a single factor design,three-year-old alfalfa golden queen was used as experiment material,the effects of boron(B)and molybdenum(Mo)on plant height,grass yield and crude protein content of four crops of alfalfa were studied.The results showed that the effect of mowing four times on height and yield of alfalfa:Second crop>first Crop>third crop>fourth crop,and the plant height and grass yield of the treatments with B and Mo fertilizers are higher than without fertilizers,using different micro-fertilizers treatments have different effects on the plant height and yield of alfalfa.For B fertilizer treatment,B2 was the best treatment,for Mo fertilizer treatment,Mo2 was the best treatment,and the effect of spraying B and Mo fertilizer was better than basal application.Whether using B or Mo fertilizer,the change trend of the crude protein content is reverse"L"shaped change.The crude protein content of the fourth crop was the highest,the third crop was the lowest,followed by the first crop and the second crop.

关 键 词：刈割期 硼钼肥 紫花苜蓿 产量 粗蛋白 

分 类 号：S541.9[农业科学—作物学]