浅谈大豆连作减产的障碍因子及综合治理

Simply Discuss about the Impediment Factors of Reducing Productinn and the Comprehensive Treatment of Soybean Planted Continuously

大豆是黑龙江省的主栽作物,每年的播种面积在350万hm2左右。由于大豆连作面积不断扩大,导致养分消耗失衡,土壤理化性质恶化,产量下降。因此提倡使用优质抗病品种、种子处理和合理施肥等综合技术措施。

Soybean is one of the most important crops in Heilongjiang Province, and the planted area is about 3500 thousand hm^2. As the continuous planting area increased, obvious nutrient consumption lost balance, physical and chemical character of soil is worsened ,Yield Decreasing was caused. So it is necessary to use high quality disease resistant variety, dealing .with seeds and rational applying fertilizer.