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黑龙江省是大豆的主要产区和大豆商品出口的重要基地。大豆产量的高低直接影响到大豆总产的波动和大豆出口任务的完成。为了提高大豆产量,除选育优良品种,采用适宜的栽培技术措施外,还必须进行施肥技术的研究。从生态学关于能量和物质的循
Heilongjiang Province is the major soybean producing area and an important base for the export of soy products. Soybean production directly affects the level of soybean production fluctuations and the completion of soybean export mission. In order to improve soybean yield, in addition to breeding fine varieties, using appropriate cultivation techniques and measures, fertilization techniques must also be studied. From ecology about energy and matter