CAJ | 학술논문

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藤草发生量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%.
재모청선상포복경표초전간발생소장동태화분포형적기출상,개전료불동치구모식、번경심도등농예조시대선상포복경표초출묘영향적연구.결과표명:선상포복경표초재수도파충후즉출묘,3개월내지속쾌속증장,매주평균증가391.57주/m~2;선상포복경표초재전간정집군분포;여수도-맥자-수도치구상비,서과-맥자-수도치구가감소선상포복경등초발생량85%이상;선상포복경표초수토층번경심도적증가발생수량축점감소,사용농궤구전간번경심도14～16 cm교천경(8～10 cm)가감소선상포복경표초발생량64.4%.
The effects of such agronomic practices as pattern of crop rotation and ploughing depth on the emergence of S.lineolatus were studied on the basis of surveying its population dynamics and distribution.The results showed that S.lineolatus emerged immediately after sowing rice seeds,and in the first 3 months the number of emergence grew rapidly at average 391.57 plants/m~2 every week.The plants'distribution in field was in clusters.Compared with the crop rotation rice-wheat-rice,the crop rotation watermelon-wheat-rice could decrease the plants by over 85%.Also the emergence of S.lineolatus declined gradually with ploughing depth increasing.Compared with a shallow ploughing depth of 8～10 cm,the ploughing depth of 14～16 cm could reduce the population of S.lineolatus by 64.4%.