黑土和黑钙土是黑龙江省的主要土壤类型及重要产粮地区,目前大部分已经开发利用,但仍有大量荒源可供开垦种植,在商品粮基地建设中将发挥巨大的作用.众所周知,黑土和黑钙土是肥沃的土壤,有机质多,养分丰富,作物产量一般高于该地区其他土壤,土壤潜在肥力较高;但是,其有效肥力和产量水平与其丰富的养分贮量不相适应,土壤肥劲未能充分发 Black soil and calcareous soil are the main soil types and important grain-producing areas in Heilongjiang Province, and most of them have been developed and utilized at present, but there are still a large number of wasteland for reclamation planting and will play a great role in the construction of commercial grain base. It is well-known that black soil And Chernozem are fertile soils with abundant organic matter and abundant nutrients. Crop yields are generally higher than other soils in the region, with potentially higher soil fertility; however, their effective fertility and yield levels are not compatible with their abundance of nutrients and soils Fat fresh not fully hair