摘要
大田试验种植4个早中熟玉米品种,包括农大108、高油298、冀丰58、郑单958,在生长期的92 d、96 d、100 d和104 d收刈秸秆,研究收刈时间对秸秆营养物质含量和干物质降解率的影响,试验结果表明,收刈时间明显影响玉米秸秆的粗蛋白质、纤维性物质含量,所选种的玉米品种秸秆蛋白质含量和干物质降解率在100 d达到峰值。
Four different maize cultivars, Nongdal08, Gaoyoull5, Jifeng58, Zhengdan958, were chosen to study the effects of different harvested time （at 92 d, 96 d, 100 d, and 104 d of the growth period） on the nutrient content and the degradabilities of organic matter in corn stalk. The results indicated that there were significant effects on the content of crude protein, NDF and ADF, by different harvested time and different maize cultivars. The crude protein content and the degradabilities of organic matter in corn stalk of selected cultivars reached the peak value at 100 d of growth period.
出处
《中国牛业科学》
2007年第4期33-35,共3页
China Cattle Science
基金
"十五"国家科技攻关计划项目"饲料资源开发与产业化利用关键技术研究"。(项目编号:2004BA514A11-04)
关键词
玉米秸秆
收刈时间
粗蛋白质
有机物降解率
NDF
Corn stalk
Harvesting time
Crude protein
Degradability of organic matter
NDF
