山东半岛地区不同播种方式对紫花苜蓿生产性能及营养品质的影响  

Effects of Sowing Methods on Production Performance and Nutritional Quality of Alfalfa in Shandong Peninsula

作　　者：孙惠文 苗福泓[1] 杨国锋[1] 栗振义 唐伟 杨超 孙娟[1] SUN Hui-wen;MIAO Fu-hong;YANG Guo-feng;LI Zhen-yi;TANG Wei;YANG Chao;SUN Juan(College of Grassland Science of Qingdao Agricultural University,Qingdao 266109,China)

机构地区：[1]青岛农业大学草业学院,山东青岛266109

出　　处：《中国草地学报》2020年第4期118-123,138,共7页Chinese Journal of Grassland

基　　金：国家牧草产业技术体系(CARS-34);山东省一流学科-草学(1619002);山东省现代农业技术体系创新团队(SDAIT-23-01,SDAIT-23-08);青岛农业大学高层次人才启动基金(6631116024,6631119038)。

摘　　要：为明确菱形和垂直播种方式对山东半岛地区苜蓿的产量和营养品质的影响,本研究通过测定菱形播种、垂直播种两种新型播种和条播、撒播两种常规播种下苜蓿的产量及氮(N)、磷(P)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)含量,进而分析苜蓿的可消化总养分(TDN)、净能(NE)、饲草干物质采食量(DMI)、可消化的干物质量(DDM)、相对饲喂价值(RFV)等营养价值指标在不同播种方式下的表现。结果表明:垂直播种能够提高苜蓿生产性能及N素产出;菱形播种可提高苜蓿的P素产出及营养价值指数,降低苜蓿的洗涤纤维含量。综上所述,菱形播种和垂直播种可作为山东半岛雨养地区较适宜的播种方式。To clarify the effect of rhombic and vertical sowing methods on the yield and nutritional quality of alfalfa in Shandong Peninsula, we compared field yield, nitrogen(N), phosphorus(P), neutral detergent fiber(NDF) and acid detergent fiber(ADF) contents of alfalfa under two new sowing methods(rhombic sowing and vertical sowing) and two traditional sowing methods(strip sowing and broadcast sowing), and then determined the total digestible nutrient(TDN), net energy(NE), forage dry matter intake(DMI), digestible dry matter(DDM) and relative feeding value(RFV) of alfalfa under different sowing methods. The results showed that vertical sowing significantly increased alfalfa yield compared with conventional sowing. Vertical sowing could improve the production performance and N output of alfalfa;rhombic sowing could improve P output and nutritive value index of alfalfa, and reduce NDF and ADF content of alfalfa. In conclusion, new sowing methods are more suitable compared with traditional sowing methods in rain-fed areas in Shandong Peninsula.

关 键 词：紫花苜蓿 菱形播种 垂直播种 产量 营养品质 

分 类 号：S541.9[农业科学—作物学]