Evaluation of panudling [five-toothed furrower] for weed control in upland rice in Claveria, Misamis Oriental [Philippines]
1993
Navarez, D.C. | Lubigan, R.T. | Moody, K. (International Rice Research Inst., Los Banos, Laguna (Philippines))
Traditionally, farmers in Claveria [Philippines] sow rice seeds in a moldboard plow-prepared furrow. Recently, some have adopted the use of panudling (five-toothed furrower) and broadcast-seeding. To determine the effectiveness of panudling in controlling weeds, trials were conducted in 1991 and 1992 wet seasons in two villages in Claveria. In Bangon-bangon, panudling reduced weeding time by 88% compared with conventional planting because successive flushes of weeds were controlled by repeated cultivation and harrowing. However, there was also a 54% reduction in rice stand which resulted in profused weed growth and a 50% yield reduction. In Caauan, higher yields and better weed control were obtained in the panudling-prepared field when followed by one or two hand weedings or by pendimethalin application and hand weeding than when pendimethalin was applied alone. No yield was obtained in all fields conventionally prepared becaused of severe weed pressures. The advantage of using panudling when plots were not weeded or when herbicide was applied was reduction in time required for furrowing 80%, seeding 84%, and additional benefit from fertilizer application. Reducing the number of harrowings can minimize reduction in crop stand and possibly increase yield
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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