期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2008

34

2

154-158

国家烟草专卖局项目（[2006]371）； 湖南省烟草专卖局项目（05-2）；

本校为第一机构

为研究在烟-稻复种制下烟杆还田对后作晚稻的效应,设置了分别在全层翻耕和少耕条件下3种烟杆不同还田量处理,考查烟杆还田对水稻生长发育、产量形成、土壤养分变化及水稻纹枯病发生的影响.结果表明:1)烟杆还田能促进水稻分蘖,提高单位面积茎蘖数和成穗率,以翻耕100%烟杆还田的处理效果最明显,最高茎蘖数和成穗率分别较对照提高6.5%和7.9%;2)促进干物质积累,还田量越高,促进作用越大,在成熟期翻耕100%烟杆还田和少耕100%烟杆还田的处理分别较对照提高12.6%和13.1%;3)有利于提高最大叶面积指数和延缓叶片早衰,翻耕100%烟杆还田和少耕100%烟杆还田的处理的叶面积指数在孕穗期分别较对照提高10.4%和...

On the basis of the experiments on different soil tillage and different amount of tobacco straw returning under tobacco-rice multiple cropping pattern, the effects of flue-cued tobacco straw returning on characters of late season rice, such as rice growth and development, yield formation, dynamic changes of soil active nutrients, disease severity of sheath blight （Rhizoctonia solani） were investigated. The results showed that compared with the control, tobacco straw returning could： 1） Promote the potential of rice tillering and increase ti...