大豆是黑龙江省主要种植的作物之一,针对当前国内对大豆需求量的不断提高,提高大豆产量和品质已经成为黑龙江省农业的重中之重。大豆是需肥水平较高的作物,据统计生产100kg大豆,需要从土壤中吸收氮 Soybean is one of the main crops grown in Heilongjiang Province. In response to the current domestic demand for soybeans continues to increase, raising soybean yield and quality has become the top priority of agriculture in Heilongjiang Province. Soybeans are crops that require higher levels of fertilizer, according to the statistics of 100kg of soybeans, need to absorb nitrogen from the soil