Biochar amendment of chromium-polluted paddy soil suppresses greenhouse gas emissions and decreases chromium uptake by rice grain

2018 ◽  
Vol 19 (4) ◽  
pp. 1756-1766 ◽  
Author(s):  
Jiangmin Zhou ◽  
Hualin Chen ◽  
Yueliang Tao ◽  
Ronald W. Thring ◽  
Jianliang Mao
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Paddy Soil ◽  
Rice Grain ◽  
Gas Emissions ◽  
Chromium Uptake ◽  
Biochar Amendment

Effects of biochar amendment in two soils on greenhouse gas emissions and crop production

2012 ◽  
Vol 360 (1-2) ◽  
pp. 287-298 ◽  
Author(s):  
Jinyang Wang ◽  
Xiaojian Pan ◽  
Yinglie Liu ◽  
Xiaolin Zhang ◽  
Zhengqin Xiong
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Production ◽  
Gas Emissions ◽  
Biochar Amendment

scholarly journals Effect of Chinese Milk Vetch (Astragalus sinicus L.) and Rice Straw Incorporated in Paddy Soil on Greenhouse Gas Emission and Soil Properties

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 717
Author(s):  
Qiaoying Ma ◽  
Jiwei Li ◽  
Muhammad Aamer ◽  
Guoqin Huang
Keyword(s):  
Greenhouse Gases ◽  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Rice Straw ◽  
Paddy Soil ◽  
Chemical Fertilizer ◽  
N2o Emissions ◽  
Gas Emissions ◽  
Chinese Milk Vetch

Paddy soil is an important emission source of agricultural greenhouse gases. The excessive application of chemical fertilizer to paddy soil is one of the important reasons for high greenhouse gas emissions. Emissions can be reduced through optimized agricultural management measures. The incorporation of Chinese milk vetch (CMV) and rice straw in the field to replace some of the chemical fertilizer can reduce the emissions of greenhouse gases, but the relationship between these emissions and soil properties after the incorporation of CMV and rice straw is unclear. Through the continuous determination of greenhouse gases and the physical and chemical properties of soil, it was found that the addition of CMV and straw could increase the emissions of methane (CH4) and carbon dioxide (CO2), but nitrous oxide (N2O) emissions were lower. The effect of the combined incorporating of CMV and rice straw on soil properties was more significant than CMV alone. It was also found that CH4 and CO2 emissions were positively correlated with microbial biomass carbon and nitrogen, pH, and soil catalase and β-xylosidase activities. In practice, we can reduce greenhouse gas emissions by water and fertilizer management.

A relationship paradigm between biochar amendment and greenhouse gas emissions

2021 ◽  
pp. 203-220
Author(s):  
Mohd Ahsaan ◽  
Pratibha Tripathi ◽  
Anupama ◽  
Puja Khare
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Gas Emissions ◽  
Biochar Amendment

scholarly journals Conservation Agriculture for Rice-Based Intensive Cropping by Smallholders in the Eastern Gangetic Plain

Agriculture ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 5 ◽  
Author(s):  
Richard Bell ◽  
Md. Haque ◽  
M. Jahiruddin ◽  
Md. Rahman ◽  
Mahfuza Begum ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Weed Control ◽  
Relative Yield ◽  
Conservation Agriculture ◽  
Soil Disturbance ◽  
Rice Grain ◽  
Gross Margin ◽  
Gangetic Plain ◽  
Gas Emissions

We review the recent development of Conservation Agriculture (CA) for rice-based smallholder farms in the Eastern Gangetic Plain (EGP) and the underpinning research on agronomy, weed control, soil properties and greenhouse gas emissions being tested to accelerate its adoption in Bangladesh. The studies are based mostly on minimum soil disturbance planting in strip planting (SP) mode, using the Versatile Multi-crop Planter (VMP), powered by a two-wheel tractor (2WT). One-pass SP with the VMP decreased fuel costs for crop establishment by up to 85% and labour requirements by up to 50%. We developed strip-based non-puddled rice (Oryza sativa) transplanting (NPT) in minimally-disturbed soil and found that rice grain yield increased (by up to 12%) in longer-term practice of CA. On farms, 75% of NPT crops increased gross margin. For non-rice crops, relative yield increases ranged from 28% for lentil (Lens culinaris) to 6% for wheat (Triticum aestivum) on farms that adopted CA planting. Equivalent profit increases were from 47% for lentil to 560% for mustard (Brassica juncea). Moreover, VMP and CA adopting farms saved 34% of labour costs and lowered total cost by up to 10% for production of lentil, mustard, maize (Zea mays) and wheat. Effective weed control was obtained from the use of a range of pre-emergent and post-emergence herbicides and retention of increased crop residue. In summary, a substantial body of research has demonstrated the benefits of CA and mechanized planting for cost savings, yield increases in many cases, increased profit in most cases and substantial labour saving. Improvement in soil quality has been demonstrated in long-term experiments together with reduced greenhouse gas emissions.

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