黑龙江省嘉荫农场位于小兴安岭北麓嘉荫县境内，属于黑龙江北部高寒冷凉农业区，无霜期１２８ｄ，平均年降水量５５４ｍｍ，有效积温２１８０℃。现有耕地１．５万ｈｍ２，土壤以白浆土为主，黑土层薄，有机质含量低，渗透性差，易旱又不抗涝，多年来大豆产量一直很低。该... Jiayin Farm in Heilongjiang Province is located in Jiayin County, the northern foot of Xiaoxing’an Mountain. It belongs to the cold and cold agricultural area in the northern part of Heilongjiang. The frost-free period is 128 days with an average annual precipitation of 554mm and an effective accumulated temperature of 2180 ℃. The existing cultivated land is 15,000 hm2. The soil is dominated by albic soil with thin black soil layer, low organic matter content, poor permeability, drought resistance and no waterlogging. The soybean yield has been very low for many years. The ...