THE EFFECT OF SPACING ON THE GROWTH AND YIELD OF RICE IN DIFFERENT VARIETIES AND PLANTING SEASONS IN INDONESIA

Paiman, Prodi Agroteknologi, Fakultas Pertanian, UPY (2024) THE EFFECT OF SPACING ON THE GROWTH AND YIELD OF RICE IN DIFFERENT VARIETIES AND PLANTING SEASONS IN INDONESIA. APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 22(6):5693-5704..

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Abstract

In Indonesia, there are two seasons, the rainy and the dry season. Both seasons will impact rice growth and yield. Utilizing superior varieties can increase rice yield. This study aimed to determine the optimal spacing for rice growth and yield across different varieties and planting seasons. The research was conducted in rice fields and arranged in a nested design with three replications. The Padjajaran Agritan and Ciherang varieties were used. Each variety was planted in spacings of 15×15, 20×20, and 25×25 cm. Results indicated that the productive tillers number, dry shoot weight, and grain dry weight clump-1 were higher when planted in 25×25 cm compared to 15×15 or 20×20 cm for both varieties. Conversely, the total grain dry weight per hectare was greater with a spacing of 15×15 cm. The grain dry weight produced by Padjajaran Agritan and Ciherang were 6.25 and 6.35 tons ha-1 in the rainy season and 5.11 and 4.75 tons ha-1 in the dry season. The research findings show that a spacing of 15×15 cm is optimal for both varieties when planted in both seasons. The rice yields are higher in the rainy season. We recommend utilizing closer spacing to maximize rice yield.

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