Abstract:

For the double cropping rice issues of growing period of convergence, less suitable for high-yielding varieties and high-yield cultivation, varieties and cultivation patterns were studied to investigate appropriate varieties and cultivation patterns for Jinhua and Quzhou area. The results showed that, the anniversary yield and effectiveness of ‘Zhongjiazao 17’ with direct seeding for early rice, and ‘Yongyou 15’ with hand planted for late rice was 18175.5 kg/hm2 and 19519.5 yuan/hm2, respectively. The anniversary yield and effectiveness of ‘Zhongjiazao 17’ with direct seeding for early rice, and ‘Yongyou 15’ with machine-transplanted for late rice was 28584.0 kg/hm2 and 14854.5 yuan/hm2, respectively. The anniversary yield and effectiveness of ‘Zhuliangyou 609’ with direct seeding for early rice, and ‘Qianyou 0506’ with machine-transplanted for late rice was 15549.0 kg/hm2 and 16867.5 yuan/hm2, respectively. ‘Zhuliangyou 609’ or ‘Jinzao 09’ was used with direct seeding for early rice, and ‘Yongyou 15’ or ‘Qianyou 0506’ was used with machine-transplanted for late rice. The collocation model of midseason variety or late mature variety (‘Zhongjiazao 17’) and variety (‘Yongyou 15’ or ‘Qianyou 0506’) with machine-transplanted could get higher returns. Besides, it could get reasonable arrangements for sowing and harvesting.