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大豆的产量主要来自太阳光能。因此，如何有效地利用光能，提高光能利用率，是提高产量的主要途径。美国大豆专家ＲＬＣｏｏｐｅｒ教授研究的“平作密植”就是充分利用光能和地力的有效措施，已在美国大面积推广。此项技术经过消化吸收已嫁接到我国黑龙江省耕作制度上...
The yield of soybeans comes mainly from solar energy. Therefore, how to effectively use light energy and improve light energy utilization rate are the main ways to increase output. American soybean expert Professor R L Cooper study of “flat planting close planting” is to take full advantage of the effective measures of light and land, has been widely promoted in the United States. After digestion and absorption of this technology has been grafted onto farming system in Heilongjiang Province ...