PDF《李昌珠林下套种墨西哥玉米草的营养价值研究_李昌珠》

Vol.

33 No.

12 Dec.

2013 第33 卷第12 期2013 年12 月中南林业科技大学学报Journal of Central South University of Forestry &

Technology 收稿日期:2013-04-12 基金项目:国家林业公益性行业科研专项(201204610) 作者简介:陈丽莉(1982-),女,湖南常德人,讲师,博士,主要从事植物遗传学研究方向为;

E-mail:cll185@163.com 通讯作者:张党权(1976-),男,江西抚州人,教授,博士,硕士生导师,研究方向为植物分子生物学与林产品加工利用;

Email:zhangdangquan@163.com 林下套种墨西哥玉米草的营养价值研究 陈丽莉 1a , 陈斌1b , 刘兴锋

2 , 罗迎社 1b , 谷振军 1a , 张党权 1a,1c (1. 中南林业科技大学 a. 林业生物技术湖南省重点实验室;

b. 流变力学与材料工程研究所;

c. 经济林育种与栽 培国家林业局重点实验室,湖南 长沙 410004;

2. 湘西州林业科学研究所,湖南 吉首 416000) 摘要:近年来我国可用林地逐渐减少,开发林下经济作物是缓解这一矛盾的新兴发展方向.以此为背景,采 用饲用牧草与小乔木的套种技术,于油茶林下种植墨西哥玉米草,并分析

2 个不同生长时期玉米草中粗蛋白、 有机质等

9 种营养物质含量的差别.林下种植中等生长期墨西哥玉米草与短生长期玉米草的水分及挥发物含量 分别为 14.91% 和12.87%, 粗灰分含量分别为 5.11% 和5.45%, 钙含量分别为 0.26% 和0.33%, 磷含量分别为 0.23% 和0.26%,粗脂肪含量分别为 13.41 g/kg 和19.29 g/kg,粗纤维含量分别为 284.55 g/kg 和235.28 g/kg,干物质含 量分别为 85.09% 和87.13%,有机质含量分别为 94.90% 和94.55%,粗蛋白含量分别为 7.0% 和12.87%.分析结 果表明,林下种植的玉米草营养物质含量与传统种植的玉米草营养物质含量没有显著差别,并且短生长期的玉 米草的饲用价值要高于中等生长期玉米草. 关键词:林下经济作物;

林下套种;

林下饲草;

墨西哥玉米草;

营养价值 中图分类号:S788 文献标志码:A 文章编号:1673-923X(2013)12-0027-05 Nutritional values of interplanting Zea diploperennis in forest under-story CHEN Li-li1a , CHEN Bin1b , LIU Xing-feng2 , LUO Ying-she1b , GU Zhen-jun1a , ZHANG Dang-quan1a, 1c (1.a. Hunan Provincial Key Lab. of Forestry Biotechnology;

b. Institute of Rheological Mechanics and Material Engineering;

c. Key Lab. of Non-wood Forest Products of State Forestry Administration, Central South University of Forestry Technology, Changsha 410004, Hunan, China;

2. Xiangxi Forestry Institute, Jishou 416000, Hunan, China) Abstract: In recent years, the forests were reduced gradually in our country, so, the development of under-story economic crops becomes the new direction to solve this problem. Based on this background, the Zea diploperennis were inter-planted in Camellia oleifera forest by the inter-planting technique of combination of forage grass and small trees. And the differences of the nutrient contents including crude protein, organic matters, moisture and volatile matter, crude ash, calcium, phosphorus, crude fat, crude ?ber and dry weight between two growing stages of inter-planting Zea diploperennis were investigated. The moisture and volatile matter contents of Zea diploperennis in the medium growing stage and the young growing stage were 14.91% and 12.87%. The crude ash contents of Zea diploperennis in the medium growing stage and the young growing stage were 5.11% and 5.45%. The calcium contents of of Zea diploperennis in the medium growing stage and the young growing stage were 0.26% and 0.33%. The phosphorus contents of Zea diploperennis in the medium growing stage and the young growing stage were 0.23% and 0.26%. The crude fat contents of of Zea diploperennis in the medium growing stage and the young growing stage were 13.41 g/kg and 19.29 g/kg. The crude ?ber contents of of Zea diploperennis in the medium growing stage and the young growing stage were 284.55 g/kg and 235.28 g/kg. The dry weight contents of Zea diploperennis in the medium growing stage and the young growing stage were 85.09% and 87.13%. The organic matter contents of Zea diploperennis in the medium growing stage and the young growing stage were 94.90% and 94.55%. The crude protein contents of of Zea diploperennis in the medium growing stage and the young growing stage were 7.0% and 12.87%. The nutrition contents were not signi?cant differencee between the inter-planting Zea diploperennis and the traditional planting. And the results show that the young growing stage Zea diploperennis had higher forage value than the medium growing stage Zea diploperennis. Key words: under-story economic crops;