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在摸清线状匍匐茎藨草田间发生消长动态和分布型的基础上,开展了不同茬口模式、翻耕深度等农艺措施对线状匍匐茎藨草出苗影响的研究。结果表明:线状匍匐茎藨草在水稻播种后即出苗,3个月内持续快速增长,每周平均增加391.57株/m~2;线状匍匐茎藨草在田间呈集群分布;与水稻-麦子-水稻茬口相比,西瓜-麦子-水稻茬口可减少线状匍匐茎藨草发生量85%以上;线状匍匐茎藨草随土层翻耕深度的增加发生数量逐渐减少,使用农机具田间翻耕深度14~16 cm较浅耕(8~10 cm)可减少线状匍匐茎藨草发生量64.4%。
On the basis of finding out the dynamics and distribution pattern of linear decline and occurrence of stoloniferous plants, the effects of different stubble patterns and tillage depth on the emergence of linear stoloniferous plants were studied. The results showed that the linear stoloniferous plants emerged in the rice seedlings and continued to grow rapidly within 3 months, with an average increase of 391.57 plants / m 2 per week. The linear stoloniferous plants distributed in the field, Compared with the stubble of rice, watermelon-wheat-stubble could reduce the incidence of stoloniferous stolons by more than 85%. The number of linear stoloniferous stolonifer decreased gradually with the increase of tillage depth, ~ 16 cm (8-10 cm) shallow tillage reduced the incidence of linear stoloniferous grass to 64.4%.