论文部分内容阅读
寒地黑土特指覆盖我国东北平原上从东经125-127度,北纬44-49度之间大约100万平方公里的黑土地,这是目前世界上三大黑土带中唯一保存完整的。肥沃的土壤使这片土地上的物产很少甚至不需要施用化肥催长;寒冷的气候使病虫害很少有机会入侵农作物。因此,这块土地上孕育而出的农产品,以有机安全、营养丰富著称于世。然而从前,寒地黑土在大多数人的眼中,只是一个拥有黑色土地、十分寒冷的地方,而它的物产像这片黑土地一样悄无声息。直到2004年,“寒地黑土”
The black soil in cold area refers to black soil covering about 1 million square kilometers between 125-127 degrees east longitude and 44-49 degrees north latitude covering the northeastern plain of our country, which is the only one of the three major black soil belts in the world. Fertile soil makes little or no use of chemical fertilizers on the land; cold climates make pests and diseases less likely to invade crops. Therefore, the agricultural products produced on this land are known for their organic security and rich nutrition. In the past, however, the cold, black earth was, in most people’s eyes, a very cold place with black land, and its property was as quiet as the black land. Until 2004, “Cold Earth”