Control of Weedy Rice Using Minimum Tillage Direct Seeding of Rice on Dry Paddy
벼 최소경운 건답직파재배를 이용한 잡초성벼 방제

Ki-Yeong Seong, Jeong-Tae Lee, Tae-Seon Park, Hyeon-Suk Cho, Myung-Chul Seo, Mi-Hyang Kim, Hang-Won Kang
2013 Weed & Turfgrass Science  
This study was tried to control the weedy rice using minimum tillage direct seeding of rice on dry paddy. Minimum tillage direct seeding on dry paddy is tilled with 4 cm in width at 27 cm intervals by 1-shaped rotary blade. Using this cultivation method can control weedy rice effectively by minimizing the soil disturbance. In this study, weedy rice was firstly emerged at April 28 in 2012. After 11 days emergence rate of weedy rice at May 9 was 61.9%. At this time rice was sown and then
more » ... s was treated at 10 and 15 days after sowing. When herbicides was treated at 10 days after sowing the control effect was 89-96%, and when treated at 15 days the control effect was 97-99%. However emergence of weedy rice differ according to the year and year. It was thought to be affected by April average temperature and total precipitation. So, for effective weedy rice control and stable rice yield, it was considered that irrigation at April 15-20 to induce the emergence of weedy rice is required.
doi:10.5660/wts.2013.2.3.322 fatcat:oj4kgijwvrafzge2cbfnaagaua