收刈时间对玉米秸秆营养物质产量的影响  

The Influence of the Harvested Time on the Yield of Nutrient Substance of Corn Stalk

作　　者：赵丽华[1] 莫放[1] 余汝华[1] 张晓明[1] 陈瑶[1] 

机构地区：[1]中国农业大学动物营养学国家重点实验室,北京100094

出　　处：《中国农学通报》2007年第7期11-14,共4页Chinese Agricultural Science Bulletin

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"(2004BA514A11-04)-"玉米秸秆产业化利用技术研究"

摘　　要：【目的】从玉米植株秸秆的总可消化养分产量考虑,确定植株的适宜收刈时间可有效利用秸秆饲料资源,【方法】为此本试验大田试验种植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92d、96d、100d和104d收刈秸秆,研究收刈时间对秸秆营养物质产量的影响,【结果】试验结果表明,收刈时间明显影响玉米秸秆的有机物、蛋白质、纤维性物质和可消化有机物产量,【结论】所选种的玉米品种秸秆蛋白质和可消化有机物产量在100d达到峰值。[OBJECTIVE]Four different maize cultivars, nongdal08, gaoyoull5, jifeng58, zhengdan958, were chosen to study the effects of different harvested time on the yield of nutrient substance of corn stalk. [METHOD]The corn stalk were harvested at the growth days of the 92nd ,96th ,100th and 104th, respectively.[RESULTS]The results indicated that there were obvious effects on the yield of organ matter, crude protein, fiber substance and digestible organ matter by different harvested time and different maize eultivars.[CONCLUSION]The results of trials indicate that the corn stalk could be harvested at the growth days of the 100^th.

关 键 词：玉米秸秆 收刈时间 有机物产量 可消化有机物 

分 类 号：S513.04[农业科学—作物学] S816.35