农作物的产量90％以上来自植株光合作用所合成的有机物。合理利用光能,是农业生产上研究的重要课题。从提高水稻光能利用率的目的出发,根据边际优势的科学原理,从1978年以来,在早、晚稻上开展了“东西向、宽窄行”栽种方式的试验、示范和推广工作。9年 More than 90% of crop yield comes from the organic matter that photosynthesis plants produce. Rational use of light energy is an important issue in agricultural production research. Based on the scientific principle of marginal advantage, from the purpose of improving the utilization rate of light energy of rice, experiment, demonstration and popularization of “east-west and width-width” planting methods have been carried out on early and late rice since 1978. 9 years