Abstract:

Abstract: Tian-You-Hua-Zhan is a new rice cultivar bred by several research scientific entities including Chinese National Rice Research Institute（CNRRI）with high quality rice that meet national primary standard.. The study on optimum nitrogen application amount and planting density for its high-yielding might provide a theory support for the cultivar popularization in Jinhua district. To investigate the most appropriate culture measure for Tian-You-Hua-Zhan, experimental planting were carried out combining different planting densities (225 000 strains/ hm2 and 16 5000 strains/ hm2) and different nitrogen application amount (0 kg、120kg、165kg、210kg/ hm2). The yields showed a positive relationship with the nitrogen application amount when planting in the same density, while the higher planting density led to higher yields under the fixed nitrogen application amount. The yields of plants in high nitrogen application amount district can reach to 7 464.3 kg/ hm2 and 6 534.8 kg /hm2. The optimum planting density and nitrogen application amount for Tian-You-Hua-Zhan is 225 000 strains/hm2 and 210 kg/ hm2 respectively.