摘要
为探究不同气候条件下苜蓿(Medicago sativa)产量和品质对不同施肥类型的响应,为苜蓿种植提供理论依据。以中国北方为研究区域,以不施肥苜蓿为对照,通过检索文献整合已发表的相关田间试验数据,采用整合分析方法(Meta-analysis),系统探究苜蓿粗蛋白产量以及营养品质对不同肥料类型的响应以及与生境的关系。结果表明,施肥均能增加粗蛋白产量,氮磷配施能够增加粗蛋白和粗脂肪含量(P <0.05),降低中性和酸性洗涤纤维含量。在年平均降水量<200 mm的干旱区,单施钾肥以及有机肥与化肥配施的增产效果最明显;年降水量200~400 mm半干旱区,单施氮肥的增产效应最高。综上所述,我国北方地区紫花苜蓿的产量和品质还有很大的提升空间。在不同的降水条件下选择合理的施肥措施,增加有机肥的施入量,更大程度地实现紫花苜蓿高产优质与环境保护共赢。
Fertilization plays an essentially positive role in the yield and quality of alfalfa(Medicago sativa). However, the effects of fertilization on yield and quality of alfalfa vary with climate condition and fertilizer type. Thus, based on the peerreviewed publications focusing on the effects of fertilization on the yield and quality of alfalfa across China, this metaanalysis was conducted to determine effects of fertilizer type on the yield and nutritive properties of alfalfa. Results indicated that compared with no fertilization treatment, all fertilizer types significantly improved the crude protein yield(CPY). The application of nitrogen and phosphorus fertilizer significantly increased crude protein and crude fat content(P < 0.05), and decreased acid and neutral detergent fiber content. When potassium fertilizer was applied alone, alfalfa CPY significantly increased in arid areas with an annual mean precipitation(MAP) of 200 mm. Nitrogen fertilizer was optimal for enhancing alfalfa yield in semi-arid areas with a MAP of 200~400 mm. Organic fertilizer reasonably increased yield and quality of alfalfa under different rainfall conditions. In summary, optimizing fertilization management in light of fertilizer type and climate condition is promising to improve the productivity and quality of alfalfa in northern China.
作者
王晓雨
于鑫
沈禹颖
张清平
李渊
WANG Xiaoyu;YU Xin;SHEN Yuying;ZHANG Qingping;LI Yuan(College of Agriculture and Forestry Science,Linyi University,Linyi 276000,Shandong,China;College of Pastoral Agriculture Science and Technology/State Key Laboratory of Grassland Agro-ecosystems,Lanzhou University,Lanzhou 730020,Gansu,China)
出处
《草业科学》
CAS
CSCD
北大核心
2023年第1期208-217,共10页
Pratacultural Science
基金
国家自然科学基金(31802133、32101431)
国家牧草产业技术体系(CARS-34)。
关键词
粗蛋白
粗纤维
相对饲喂价值
洗涤纤维
氮肥
有机肥
crude protein
crude fiber
relative feeding value
detergent fiber content
nitrogen
organic fertilizer
