不同柱花草绿肥种质氮含量的差异比较  

Difference of the Nitrogen Contents among the Stylosanthes(Stylosanthes guianensias SW)

作　　者：郇恒福[1] 文稀[1,2] 刘国道[1] 黄冬芬[1] 白昌军[1] 虞道耿[1] HUAN Hengfu WEN Xi LIU Guodao HUANG Dongfen BAI Changjun YU Daogeng(Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agrleulture, P. R. China ＆ Key Laboratory of Conservation and Utilization of Cassava Genetic Resources, Ministry of Agriculture,P. R . China, Danzhou, Hainan 571737, China College of Agronomy, Hainan University, Danzhou, Hainan 571737, China)

机构地区：[1]中国热带农业科学院热带作物品种资源研究所/农业部华南作物基因资源与种质创制重点实验室&农业部木薯种质资源保护与利用重点实验室,海南儋州571737 [2]海南大学农学院,海口570228

出　　处：《热带生物学报》2016年第4期457-465,496,共10页Journal of Tropical Biology

基　　金：海南省重点研发计划项目(ZDYF2016204);农业部948项目(2014-Z16);现代农业产业技术体系建设专项资金(CARS-35);中央级公益性科研院所基本科研业务费专项资金项目(1630032015030;1630032014029)

摘　　要：笔者对134份柱花草绿肥种质的氮含量进行了分析测定,结果表明：供试的134份柱花草绿肥种质的氮含量在2%以上的有35份,占全部种质的26.1%,含量在1.5%~2.0%的种质有98份,占全部种质的73.1%,这些种质的氮含量均达到2级水平,仅有1份种质的氮含量在1.5%以下,为3级水平。Stylosanthes（ Stylosanthes guianensias SW） is a leguminous crop used as green manure and forage in the tropics. Nitrogen content is one of the important index affecting the green manure quality for the leguminous green manure. The nitrogen contents of 134 accessions of Stylosanthes green manure germplasm were analyzed and evaluated. The result indicated that 35 accessions of the germplasm contained more than 2% of nitrogen,accounting for 26. 1% of the total accessions of the germplasm; 98 germplasm accessions contained 1. 5%-2. 0%of nitrogen,73. 1% of the total germplasm accessions. All these accessions were grouped into class Ⅱ. Only one germplasm accession contained nitrogen below 1. 5% and were grouped into class Ⅲ.

关 键 词：柱花草 绿肥 氮含量 

分 类 号：S142.1[农业科学—肥料学]