Direct-sowing culture by broadcasting seeds on a submerged paddy field. 6. Effects of seeding density and amount of fertilizer on the growth and yield of rice. 7. Effects of seeding density and amount of top-dressing on the yield of rice and its components. 8. Effects of the amount of fertilizer and different proportions of basal dressing to top-dressing on the growth and yield of rice

Akamatsu, S.

Proc. Crop Sci. Soc. Japan, Japan 37: 17-31

1968


Accession: 014421111

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Abstract
Except at the lowest sowing density (50 hills/m2), the number of spikelets per panicle, number of grains and 1000-grain weight were little affected by seeding density or by basal application of up to 24.5 g/m2 N. In a second experiment with 9.6 g N applied basally, and up to 6.0 g N as top-dressing, a seeding density of 100-150 hills/m2 and high rates of top-dressing gave the best grain-yield increases.