杂交粳稻高产群体质量栽培初探

叙述了高产群体质量栽培的涵义，从江苏的实践，提出了培育壮秧、建立高光效群体、肥料运筹、合理灌排等杂交粳稻高产群体质量栽培的主要技术环节。

Exploration of Quality Cultural Management in Japonica Hybrid Rice

For thousands of years, the traditional cultural model has been so-called quantity cultivation i. e. big population with close spacing in rice cultural management. Since the leaf number model cultivation was adopted in recent years, the quality cultural method that is "Small population, Vigorous individual and High accumulation" (SVH)has been advanced. Japonica hybrid rice is being demonstrated and extended on a large scale in Jiangsu province. Based on the results obtained from the demonstration of SVH cultural method with the combinations of japonica hybrid rice Liuyou 1 and Liuyou 3-2 in Xinhua city of Jiangsu province, which showed that the grain yield under an area of about 7 hectares for three years was 10.5t/ha, 9.0% high- er than that of traditional method, and the highest reached 12.0 t/ha in a small area, the method of high yielding population quality cultural management has been developed. The main technical practices are vigor- ous seedling raising, the establishment of high yielding population structure and good fertilizer and water management.