Biological characteristic of early high-quality rice Jiafuzhan and its high-yield cultivation techniques

The results of regional trials by several years showed that Jiafuzhan had high quality, high yield, moderately resistant to rice blast, high cold tolerance at seedling stage and moderate heat tolerance at heading stage. The analysis of correlation and path showed that in four yield components of Jiafuzhan, the effective panicle per area was the key factor to effect the yield. Cultivation strategy for high yield should be taken to accelerate tiller to ensure enough effective panicle per area. And the results of orthogonal test for high yield showed that seedling density with 167-20.0 cm?20.0 cm, N 210 kg·hm-2, fertilizer application with N, P, K and organic manure could gain high yield.