Effect of Seeding Methods on Rice Yield in Mekong Delta

Abstract

The study was conducted to determine appropriate sowing methods for Mekong Delta rice system during dry season, from November 2018 to April 2019. We used the sowing methods including broadcasting, drilling and dibbling seeding for OM5451 rice variety with the quantity of 80, 70 and 60 kg per ha, respectively. The experimental design was the randomized completely block design (RCBD) with three replications. Data were recorded mainly on yield and yield components along with growing and developing parameters. The results revealed that the sowing methods significantly affected flowering days, 1000GW and actual yield. The latest flowering day was recorded in case of dibbling seeding, which resulted in delayed maturity of rice. And similar theoretical yield was attained under the three seeding methods in spite of the facts that 1000GW of drilling sowing was signif icantly higher than others. The actual yield showed significant higher of drilling sowing as compared with dibbling sowing, but not significant as compared with broadcasting method. One more thing, the rice seed quantity of the drilling was 12.5% lower than that of the broadcasting that is the current popular seeding method in Mekong Delta while the yield of the drilling was a little higher than other methods.