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玉米是黑龙江垦区种植面积和产量增长最快的品种,已经成为国内第一大粮食品种。但由于长期掠夺式经营,导致农业生态环境恶化,干旱加重,土壤肥力下降,严重影响了黑龙江垦区农业持续高效发展。而采用保护性耕作技术具有保护生态环境和提高粮食产量的作用,该地区先后推广应用了原垄卡种、耙茬播种、深松少耕、玉米免耕播种和免中耕等多种保护耕作技术,使土壤硬度、孔隙度、容重等物理性状均有改善,对黑龙江垦区粮食的高产稳产起到了极大的推动作用,本
Corn is the cultivated area and output of Heilongjiang reclamation area the fastest growing varieties, has become the largest grain variety in China. However, due to long-term predatory management, agro-ecological environment worsened, drought increased and soil fertility decreased, seriously affecting the sustainable and efficient development of agriculture in Heilongjiang reclamation area. The use of conservation tillage technology has the role of protecting the ecological environment and improving grain yield. The area has successively promoted the application of a variety of conservation tillage technologies, such as primitive ridges, seeding, deep plowing and tillage, maize no-tillage and no-tillage , So that the soil hardness, porosity, bulk density and other physical properties are improved, Heilongjiang reclamation area of high and stable grain production has played a significant role in promoting this