收获期对中单9409和中原单32玉米秸秆主要化学成分的影响  

Effects of Harvesting Time on the Main Chemical Components in the Stalks of Corn Varieties Zhongdan No. 9409 and Zhongyuandan No. 32

作　　者：闫贵龙[1] 田树飞[1] 穆秀敏 曹春梅[1] 王瑞兵 

机构地区：[1]河北北方学院动物科技学院,河北宣化075131 [2]河北巡天农业科技有限公司,河北宣化075131

出　　处：《安徽农业科学》2014年第33期11731-11733,共3页Journal of Anhui Agricultural Sciences

基　　金：河北省科技计划项目(11220418);河北北方学院校级创新团队项目(CXTD1305)

摘　　要：[目的]研究收获期对中单9409和中原单32玉米秸秆主要化学成分的影响。[方法]选用玉米品种中单9409和中单元32作为试验材料,研究收获期对其秸秆主要化学成分的影响。[结果]中单9409品种秸秆在1/4乳线期营养价值最高,其他收获期营养价值差异不明显;中原单32品种秸秆在3/4乳线期营养价值最高,1/4乳线期次之,4/4乳线期最差。[结论]中单9409在冻死时收获最佳,这更有利于籽粒中营养物质的积累。[Objective] The research aimed to study the effects of harvesting time on the main chemical components in the stalks of corn varieties Zhongdan No.9409 and Zhongyuandan No.32.[Method] Taking corn varieties Zhongdan No.9409 and Zhongyuandan No.32 as test materials,the effects of harvesting time on their main chemical components were studied.[Result] The stalks of Zhongdan No.9409 harvested in 1/4 milk line stage had the highest nutritive value,and the nutritive value in other harvesting stages had no significant difference.The stalks of Zhongyuandan No.32 harvested in 3/4 milk line stage had the highest nutritive value,and its nutritive value in 1/4 milk line stage was the second,and that in 4/4 milk line stage was the worst.[Conclusion] The best harvesting time of Zhongdan No.9409 was winter-killing time,which was favorable for the accumulation of nutriments in corn grains.

关 键 词：中单9409 中原单32 收获期 玉米秸秆 化学成分 

分 类 号：S513[农业科学—作物学]