Efficacious Enhancement for Yielding of Oryza sativa L. c. v. Hom – Nil under Container Condition

Abstract

Enhancement of rice yield for enough consumption in rainfed area with low fertility soil constraint in Surin province was the important for farmers living. The purposes of this research were to study, develop and disseminate methods of yield enhancement of toxic substance free Hom-Nil rice under container condition to related organizations. The experiments were devided into 2 experiments. Experiment 1 was carried out through Completely Randomized Design (CRD) with nine methods of yield enhancement and was replicated six times. The first three yield enhancement methods which gave the highest yield were 1) upland rice growing method + [18–0–6 + H₄Sio₄ 1.41 g/pot 20 days after germination (DAG)] + [46–0–0 + H₄Sio₄ 0.80 g/pot at maximum tillering stage and panicle initiation stage] 2) upland rice growing method + [16–16–8 4.30 g/pot 20 DAG + 46–0–0 1.84 g/pot 50 DAG] and 3) SRI growing method + [16–16–8 4.30 g/pot 15 days after transplanting (DAT) + [46–0–0 1.84 g/pot 35 DAT]. Experiment 2 was carried out through Completely Randomized Design (CRD) with four developed methods and was replicated ten times. It was found that SRI growing method with 2 hills/pot + [16–16–8 4.30 g/pot + H₄Sio₄ 4.30 g/pot 10 DAT + 46–0–0 1.84 g/pot + H₄Sio₄ 1.84 g/pot 40 DAT] gave the highest average yield. In addition, comparison of average yield between 2 experiments revealed that three growing methods in experiment 1 which gave the highest yield were recommended for yield enhancement under container condition. The participants were trained about yield enhancement method showed their knowledge, understanding and knowledge adoption after training at high level.