农业东北农牧交错带玉米适宜收获方式的研究(Ⅱ)  

Studies on appropriate harvesting approaches of maize in the ecotonebetween agriculture and animal husbandry in Northeastern China

作　　者：陈玉香[1] 周道玮[2] 张玉芬[3] 

机构地区：[1]吉林大学生物与农业工程学院,吉林长春130025 [2]东北师范大学草地科学研究所,吉林长春130024 [3]北京师范大学生命科学学院,北京100875

出　　处：《草业科学》2005年第9期61-65,共5页Pratacultural Science

基　　金：国家重点基础研究发展规划项目(G2000018606)

摘　　要：从增加农牧交错地区饲料来源的角度出发,尝试改变当地玉米Zeamays常规的收获方式,采用提前收获果穗、植株继续生长5d后收回的方式。试验结果表明,该收获方式使籽粒产量下降,秸秆产量提高。籽粒的总淀粉及粗蛋白含量下降;茎、叶粗蛋白含量增加;NDF,ADF和ADL含量下降,秸秆的饲用价值提高。通过能量折合计算,籽粒产量损失可由秸秆产量的增加弥补,该收获方式在农牧交错地区具有一定的可行性。The maize traditional harvesting approach in the ecotone between agriculture and animal husbandry in northeastern China was changed in order to increase forage sources. The approach of harvesting ears while remaining the plant for 5 days was applied in the experiment. The results showed that the yield of the kernel decreased and the yield of the stalk increased compared with the traditional ways. The starch and crude protein content of the kernel decreased, while the crude protein content in leaves and stems increased. The neutral detergent fiber, acid detergent fiber, acid detergent lignin, hemi-cellulose and cellulose content decreased in maize stalk, achieving a higher fodder quality. The decrease of kernel could be compensated by the increase of stalk. The experiment proved that this harvesting approach was feasible in the ecotone between agriculture and animal husbandry.in northeasten China.

关 键 词：东北农牧交错带 玉米 收获方式 

分 类 号：S513[农业科学—作物学]