Effect of Spacing and No. of Seedling per Hill on Growth and Yield Components of Rice cv. Chai Nat 1 under System of Rice Intensification

摘要

We investigated effects of spacing and no. of seedling hill~(-1) on growth and yield component of rice cv. Chai Nat 1 in system of rice intensification. The experiment included 25 × 25 cm, 30 × 30 cm, 40 × 40 cm, and 50 × 50 cm with single seedling hill~(-1), two seedlings hill~(-1), and three seedlings hill~(-1), respectively. The study was in Kasetsart University Chalermphrakiat Sakonnakhon Province Campus during November 2016 to March 2017. Each condition was laid out in a randomized completed block design with three replications. The experiment found that the no. of seedlings hill~(-1) influence in the growth and the yield component of the rice, while the spacing does not. Moreover, there is no interaction between spacing and seedlings hill~(-1). The three seedling hill~(-1) condition showed the highest in tillering (avg. = 24.13 tillers hill~(-1)). The single seedling hill~(-1) showed the lowest in tillering (avg. = 16.24 tillers hill~(-1)). From this research indicated that optimized seed hill~(-1) in rice cultivated system.