收获期对青贮玉米产量的影响  

Effect of Harvest Date of Yield on Silage Maize

作　　者：孙连双[1] 李东阳[1] 张亚龙[1] 齐雅芳[1] 

机构地区：[1]黑龙江农业职业技术学院,黑龙江佳木斯154007

出　　处：《中国农学通报》2010年第3期157-160,共4页Chinese Agricultural Science Bulletin

摘　　要：黑龙江是中国最北、纬度最高的省份,随着畜牧业的发展,饲料不足已成为影响寒地畜牧业发展的瓶颈之一。围绕着人们对青贮玉米不同收获期的质量和缺乏理论依据和参考数据这一问题,以青贮玉米龙辐单208、东青1号、吉饲8号和中原单32为材料,研究了不同收割期对青贮玉米鲜草产量和干物质产量的影响,以期为北方寒地青贮玉米的优质、高产、高效生产及其合理利用提供理论与技术支撑。试验结果表明,青贮玉米整株鲜草产量在授粉后20～30天较高,干物质产量随着收获期的延迟而不断增加,不同青贮玉米品种的干物质分配差异很大。从干物质积累角度讲北方寒地青贮玉米适宜收获期为授粉后40～50天。Heilongjiang is the northeast and province in China with the highest latitude.As the animal husbandry developing,the lack of the forage has been the vital negative impact of cold areas animal husbandry development.This experiment discussed the problem about people＇s attitude towards the quality,the reference data and the short of theory basis of the silage maize in different harvest dates.Based on the research of silage maize Longfudan208,Dongqing1,Jisi8hao and Zhongyuandan32,this article studied the influence of different harvest date on the yield of fresh matter and dry matter.In order to supply the theory and technique supporting for the good quality,high yield,effective production and the proper using of northern old areas silage maize. Results of the research showed that：fresh matter reach the most 20 to 30 days after pollination and dry matter increases as harvest date delayed.Dry matter distributions of different types differed.From analysis of dry matter accumulation,the best harvest date northern cold areas were 40 to 50 days after pollination.

关 键 词：青贮玉米 收获时期 产量 

分 类 号：S41-39[农业科学—植物保护]