关键词: 组织培养, 组织培养

Abstract: This is a review article. The current study shows that no-tillage, also called conservation tillage, is the institution of tillage and planting which covers 30% of the soil surface with biosolids to reduce water erosion. The net gain or loss of soil organic C depends on the relative rates of C additions as plant biomass and organic residuals versus that lost through crop removal, microbial respiration and erosion. The elimination of tillage generally results in slower residue decomposition and a net increase in SOC. In contrast, a number of tillage dependent factors generally increase the rate of residue decomposition. Incorporation of residues into the soil increases their availability for loss through microbial decomposition. No-tillage increase the sustainability of agriculture and offset the release of greenhouse gas related to human action. The 50% release of CO2 comes about in summer. The research suggest that the average CO2 release quantity per year of no-tillage is lower than traditional tillage, the carbon quantity accumulated in surface soil of no-tillage is higher than traditional tillage. Additional benefits of continuous no-till management have been recognized including its positive impact on various soil quality parameters. Soils managed using no-till have improved soil structure, increased infiltration and reduced runoff and erosion. These improvement come about, in large part, as a result of the accumulation of organic matter at the soil surface. The authors pointed out that the further study on carbon fixation ability of soil should be enhanced, and the policy on no-tillage should be encouraged.