Effects of different planting densities on yield of ratoon rice cv. “Neiyouhang 148”

In this paper, different planting densities of ratoon rice cv. "Neiyouhang 148" were tested. The results showed that the planting density of (1.4-1.6)×10⁴ clusters per 667 m² was optimum when "Neiyouhang 148" was cultivated as semilate and ratoon rice. The highest yield in the first season was obtained with the density of 1.4×10⁴ clusters per 667 m² while the highest yield in the ratoon season was obtained with the density of 1.6×10⁴ clusters per 667 m². The highest yield in these two seasons was obtained with the density of 1.6×10⁴ clusters per 667 m².