施肥对羊草分蘖及养分的影响  

Effects of Fertization on Tillering and Nutrient of Leymus chinensis

作　　者：梁敏 杨瑞霞[3] 许兴 冯燕 马海珍 赵凯 毛桂莲[1,5] LIANG Min;YANG Rui-xia;XU Xing;FENG Yan;MA Hai-zhen;ZHAO Kai;MAO Gui-lian(School of Life Science,Yinchuan 750021,China;Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia,Yinchuan 750021,China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China,Yinchuan 750021,China;Agricultural Technology Extension and Service Center of Ningxia Pengyang County,Pengyang 756500,Ningxia,China)

机构地区：[1]宁夏大学生命科学学院,银川750021 [2]宁夏大学宁夏优势特色作物现代分子育种重点实验室,银川750021 [3]宁夏彭阳县农业技术推广服务中心,宁夏彭阳756500 [4]宁夏大学西北退化生态系统恢复与重建教育部重点实验室,银川750021 [5]宁夏大学宁夏大学宁夏优势特色作物现代分子育种重点实验室,银川750021

出　　处：《湖北农业科学》2019年第3期91-95,共5页Hubei Agricultural Sciences

基　　金：宁夏回族自治区牧草育种专项(2014NYYZ040101)

摘　　要：为了促进羊草[Leymus chinensis(Trin.) Tzvel.]地下芽库的发生,促进分蘖量增加,提高产草量,对羊草在3种移栽方式不同肥料处理下的形态指标、养分吸收及品质进行了分析研究。结果显示,施肥处理有利于羊草的营养生长。同一移栽方式下,施肥T2处理(N 120 kg/hm^2,P_2O_5120 kg/hm^2,K_2O 60 kg/hm^2)的羊草生长、氮磷钾的吸收、粗蛋白质含量、粗脂肪含量、灰分含量及产量均高于其他施肥处理;粗纤维、无氮浸出物含量低于其他处理;3种移栽方式中以大田育苗移栽的效果较好。适宜的氮磷钾配比和栽培种植方式能够促进羊草的分蘖及提高品质和产量。In order to promote the dentition,the amount of tillers increasing and grass production of Leymus chinensis,the morphological indicators and nutrient composition of L.chinensis under different fertilizer treatments with three different transplanting methods were studied.The results showed that different fertilization treatments were beneficial for the vegetative growth of of L.chinensis.In the same transplanting method,the numbers of stems,tillers,nitrogen absorption,phosphorus absorption and potassium absorption as well as crude protein,crude fat,ash and yield of T2(N 120 kg/hm^2,P2O5 120 kg/hm^2,K2O 60 kg/hm^2)were higher compared with the other treatments,and crude fiber and nitrogen-free extract content of T2 treatment were lower than the other treatments.The nutritional value of field seedlings transplanting in L.chinensis was the highest among three transplanting methos.It suggested that appropriate NPK ratio and reasonable cultivation methods could significantly increase the nutritional value and yield of L.chinensis.

关 键 词：羊草[Leymus chinensis(Trin.)Tzvel.] 移栽 施肥 干草产量 品质 

分 类 号：S5439[农业科学—作物学]