การพัฒนาเทคโนโลยีการจัดการข้าววัชพืชแบบเกษตรกรมีส่วนร่วม

Abstract

Development of weedy rice management technology by farmers’ participation was conducted at farmers’ field where faced to weedy rice problem in Pathum Thani and Nonthaburi province in 2010. The objective of this project was to develop and transfer technology implementation of Rice Department for weedy rice management. The experiments were conducted as the observation trial consisted of 6 treatments namely integrated weedy rice management plus oxadiazon, integrated weedy rice management plus thiobencarb, integrated weedy rice management plus 2,4-D, weedy rice management technology by farmers’ participation, farmers’ practice and weedy rice management by parachute. The best weedy rice control was shown by parachute method in Pathum Thani province. The parachute method gave the lowest of 1.8 panicles/m2 of weedy rice and the highest yield of 831 kg/rai, and also increases of 28.8 % of rice yield. The method of integrated weedy rice management plus oxadiazon, integrated weedy rice management plus thiobencarb, integrated weedy rice management plus 2,4-D, gave the yield of 646.7, 654.0, 605.5 kg./rai and there were 18.4, 19.2, 24.0 panicles/m2 of weedy rice respectively and weedy rice management technology by famers’participation, farmers’ practice gave the yield of 569.0 and 645.2 Kg./rai and gave the highest of 184.8 and 217.9 panicles/m2 of weedy rice. Parachute method was also performed the best in Nonthaburi province. The parachute method 0.4 panicle/m2 of weedy rice and gave the highest yield of 546.0 kg/rai by the increase of 20.3 % of rice yield. The other methods mentioned above gave the rice yield of 499.0, 460.0, 454.0 kg./rai and there were 4.5, 4.5, 6.0 panicles/m2 of weedy rice respectively and weedy rice management technology by famers’participation, farmers’ practice gave the yield of 448.0 and 454.0 Kg./rai and gave the highest of 14.8 and 41.0 panicles/m2 of weedy rice.