Conservation Agriculture and Soil Organic Carbon: Principles, Processes, Practices and Policy Options

Soil Organic Carbon Sequestration with Conservation Agriculture in the Southeastern Usa: Potential and Limitations

The carbon (C) cycle is the basis for greenhouse gas emissions and global warming. Globally, agriculture is responsible for about 20% of the greenhouse gas emissions. However, this percentage does not take into account the large role that agriculture plays in the opposing processes of photosynthesis and respiration (Figure 1), as well as contributions to soil organic C sequestration via animal ...

Weeds Management in Organic Farming through Conservation Agriculture Practices

Despite weeds are a serious threat to promotion of organic farming, relatively less attention is given to research on weed management. This article explores a scope of integration of conservation agriculture for weed control and soil protection under organic farming. Limitation in the use of agro-chemicals under OF promotes intensive tillage for weed control. Mostly, tillage leads to depletion ...

Ecological agriculture: Principles, practices, and constraints

The practice of ecological agriculture involves building the strengths of natural ecosystems into agroecosystems, purposely disturbed to produce food and fiber. The overall strategies include using practices that (a) grow healthy plants with good defense capabilities, (b) stressing pests, and (c) enhancing populations of beneficial organisms. These are accomplished by enhanced habitat managemen...

The Effect of Land use and Soil Erosion on Soil Organic Carbon and Nitrogen Stock

  Soil organic carbon (SOC) is a principal component in soil quality assessment. Knowledge of SOC and total nitrogen (TN) stocks are important keys to understand the role of SOC in the global carbon cycle and, as a result, in the mitigation of global greenhouse effects. SOC and TN stocks are functions of the SOC concentration and the bulk density of the soil that are prone to changes, influe...

Identifying soil organic carbon fractions sensitive to agricultural management practices