Establishment of the no-tillage transplanting cultivation of high quality rice [Oryza sativa] "Hitomebore" with a single basal application of controlled availability fertilizer in pot seedling box in cold regions [Japan]
1998
Hossain, Md.Z. (Tohoku Univ., Sendai (Japan). Faculty of Agriculture) | Saigusa, M. | Shibuya, K.
No-tillage (NT) transplanting cultivation of high quality rice "Hitomebore" with a single basal application of controlled availability fertilizer (CAF) in pot seedling box in cold regions compared to that of conventional tillage (CT) system was studied in Andisol at Kawatabi. The N release of CAF from POCU S100 and POCU SS100 during the nursery stage were 4.4% and 3.2%, respectively. The N released from POCU SS100 during the nursery stage didn't reduce seedling growth compared to that from POCU S100. The plant height and total leaf numbers of main culm of NT plots were similar to the CT plots. The linear type of polyolefin coated urea (POCU) 30, in combination with sigmoid type of POCU S100 and POCU SS100 applied as basal fertilizer, increased the number of tillers at the initial growth stage of rice. The brown rice yields of all the NT plots were 5.23-6.16 t/ha, which was higher compared to that of the CT plots (4.52 t/ha). The highest yield was obtained in POCU SS100 NT plots. Sigmoid type of POCU S100 and POCU SS100 in NT plots increased the number of spikelets per square meter
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