Effects of enlargement of hill distance on growth and yield of normal season cultured rice [Oryza sativa]: Sparse planting for reduction in labor of raising of seedling and seedling transportation in rice
2008
Kawasaki, T.(Ehime Univ., Matsuyama (Japan). Faculty of Agriculture) | Morisige, Y. | Sugiyama, E. | Kimura, H. | Sugimoto, H.
In the paper, the effects of enlargement of hill distance on growth and yield of paddy rice in normal season culture were investigated for the case of 30 cm row distance. As the results, no effect on the yield were found in the varieties of 'Koigokoro' and 'Hinohikari' which were transplanted from the beginning to the middle of June with hill distance from 18 cm to 36 cm or 45 cm; and in the variety of 'Himenomai' which was transplanted from the beginning to the end of June with hill distance from 18 cm to 36 cm. These results suggest a drastic labor saving of seedling culture and seedling transportation by reduction of the number of nursery box with sparse planting.
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