Abstract
The utilization of agricultural wastes are considered to be the important step in environmental protection, energy structure and agricultural development. The agricultural straw disposition of agricultural wastes not only results in environmental pollution, but also waste a lot of valuable biomass resources. Biochar the viable organic amendment product derived from organic sources and store carbon on a long term basis in the terrestrial ecosystem and also capable of reducing greenhouse gases (GHG) emission from soil to the atmosphere to combat climate change and sustain the soil health with sustainable crop production. The role of biochar in developing a sustainable agriculture production system is immense and so is its potential in mitigating climate change, which stands much beyond its uses in agriculture. The addition of biochar to soils resulted, on average, in increased above ground productivity, crop yield, soil microbial biomass, rhizobia nodulation, plant K tissue concentration, soil phosphorus (P), soil potassium (K), total soil nitrogen (N), and total soil carbon (C). The effects of biochar on multiple ecosystem functions and the central tendencies suggest that biochar holds promise in being a win-win-win solution to energy, carbon storage, and ecosystem function. However, biochar’s impacts on a fourth component, the downstream non target environments, remain unknown and present a critical research gap.
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