氮磷钾肥配施对黄河滩区紫花苜蓿产量和品质的影响  

Effect of N, P and K fertilization on yield and nutrient quality of alfalfa in Yellow River beach regions

作　　者：胡华锋[1,2] 肖金帅[1] 郭孝[2] 介晓磊[2] 刘世亮[1] 化党领[1] 鲁剑巍[3] 刘芳[1] 

机构地区：[1]河南农业大学资源与环境学院,河南郑州450002 [2]郑州牧业工程高等专科学校,河南郑州450011 [3]华中农业大学资源与环境学院,湖北武汉430070

出　　处：《湖南农业大学学报（自然科学版）》2009年第2期178-180,188,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：河南省杰出人才创新基金项目(0521001700);河南省重点科技攻关项目(082102130014);河南省科技成果转化项目;国家公益性行业(农业)科研专项(200803029);河南省教育厅科技攻关项目(2009A210020)

摘　　要：采用田间试验,研究氮、磷、钾肥配施对黄河滩区紫花苜蓿饲草产量和品质的影响.结果表明:氮、磷、钾肥能显著提高紫花苜蓿饲草产量,与未施肥处理相比,施肥处理饲草产量增幅为8.62%～30.92%,氮、磷、钾肥配施效果显著优于单施;配施能显著提高紫花苜蓿粗蛋白、粗纤维、粗灰分、粗脂肪、磷等的含量,且氮、磷、钾肥配施效果显著优于单施;能显著降低紫花苜蓿无氮浸出物含量.An experiment was carried out in field to investigate effect of N, P and K applied on the yield and nutrient quality of Medicago sativa L.（Alfalfa） in Yellow River beach regions. The results showed the yield of Alfalfa was significantly higher than that of CK with application of N, P and K, the yield was increased by 8.62% to 30.92%, and the effect of N, P and K complex fertilization was better than one single fertilizer application. The content and yield of alfalfa＇s crude protein, crude fiber, crude ash, crude fat and P were significantly increased with application of N, P and K fertilizer, and the effect of N, P and K complex fertilization was better than that of the one single fertilizer. But the content of nitrogen free extract was significantly reduced.

关 键 词：紫花苜蓿 氮肥 磷肥 钾肥 产量 品质 

分 类 号：S963.22[农业科学—水产养殖]