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大豆是齐齐哈尔地区主栽作物,出口量和经济效益都居各作物之首。但是,由于自然条件的制约,价格及需求量的增加,年播种面积呈逐年上升趋势。固有的轮作方式被强行改变,重迎茬现象越来越严重。重迎茬大豆单产低,品质差,虫食率高,病虫害严重。为了减轻大豆重迎茬危害,采取种植抗性品种,辅之以增施有机肥和科学施肥进行生态防治确是减轻危害的最优选择。目前我省已经推广的抗性品种是垦丰1号,嫩丰14,抗线虫1号。参加省生产试验的品种是嫩抗
Soybeans are the main crops in Qiqihar area, with the export volume and economic benefits ranking the top among all crops. However, the annual sown area has been increasing year by year due to the constraints of natural conditions, the increase of price and demand. The inherent mode of rotation was forcibly changed, and the phenomenon of re-stubble was more and more serious. Heavy-tonnage soybeans yield is low, poor quality, high worm rates, pests and diseases. In order to reduce the risk of soybean replanting, the cultivation of resistant varieties, supplemented by organic fertilizers and scientific fertilization for ecological control is indeed the best choice to reduce the harm. At present, the province has promoted varieties of resistant Kenfeng 1, Nenfeng 14, anti-nematode No. 1. Participate in the provincial production test varieties are tender