Optimizing residue and tillage management practices to improve soil carbon sequestration in a wheat–peanut rotation system

2022 ◽  
Vol 306 ◽  
pp. 114468
Author(s):  
Jihao Zhao ◽  
Zhaoxin Liu ◽  
Huajiang Lai ◽  
Dongqing Yang ◽  
Xiangdong Li
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Management Practices ◽  
Soil Carbon Sequestration ◽  
Rotation System

Soil carbon stocks under different pastures and pasture management in the higher rainfall areas of south-eastern Australia

Soil Research ◽  
2010 ◽  
Vol 48 (1) ◽  
pp. 7 ◽  
Author(s):  
K. Y. Chan ◽  
A. Oates ◽  
G. D. Li ◽  
M. K. Conyers ◽  
R. J. Prangnell ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Management Practices ◽  
Carbon Stocks ◽  
Soil Carbon Sequestration ◽  
Pasture Management ◽  
Sequestration Potential ◽  
Eastern Australia ◽  
Soil Carbon Stocks ◽  
Soc Stocks

In Australia, pastures form the basis of the extensive livestock industries and are important components of crop rotation systems. Despite recent interest in the soil carbon sequestration value of pastures in the mitigation of climate change, little information is available on the soil carbon sequestration potential of pastures in New South Wales farming systems. To quantify the soil carbon stocks under different pastures and a range of pasture management practices, a field survey of soil carbon stocks was undertaken in 2007 in central and southern NSW as well as north-eastern Victoria, using a paired-site approach. Five comparisons were included: native v. introduced perennial, perennial v. annual, continuous v. rotational grazing, pasture cropping v. control, and improved v. unimproved pastures. Results indicated a wide range of soil organic carbon (SOC) stocks over 0–0.30 m (22.4–66.3 t C/ha), with little difference when calculated based on either constant soil depth or constant soil mass. Significantly higher SOC stocks were found only as a result of pasture improvement using P application compared with unimproved pastures. In this case, rates of sequestration were estimated to range between 0.26 and 0.72 t C/ha.year, with a mean rate of 0.41 t C/ha.year. Lack of significant differences in SOC stocks for the other pastures and pasture management practice comparisons could be due to inherent problems associated with the paired-site survey approach, i.e. large variability, difficulties in obtaining accurate site history, and the occasional absence of a valid control as well as the likely lower rates of SOC sequestration for these other comparisons. There is a need for scientific long-term trials to quantify the SOC sequestration potential of these other pastures and pasture management practices.

scholarly journals Plant Nutrition under Climate Change and Soil Carbon Sequestration

2022 ◽  
Vol 14 (2) ◽  
pp. 914
Author(s):  
Heba Elbasiouny ◽  
Hassan El-Ramady ◽  
Fathy Elbehiry ◽  
Vishnu D. Rajput ◽  
Tatiana Minkina ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Sequestration ◽  
Soil Carbon ◽  
Plant Nutrition ◽  
Carbon Capture ◽  
Management Practices ◽  
Climatic Conditions ◽  
Soil Carbon Sequestration ◽  
Plant Production ◽  
Agricultural Yield

The climate is one of the key elements impacting several cycles connected to soil and plant systems, as well as plant production, soil quality, and environmental quality. Due to heightened human activity, the rate of CO2 is rising in the atmosphere. Changing climatic conditions (such as temperature, CO2, and precipitation) influence plant nutrition in a range of ways, comprising mineralization, decomposition, leaching, and losing nutrients in the soil. Soil carbon sequestration plays an essential function—not only in climate change mitigation but also in plant nutrient accessibility and soil fertility. As a result, there is a significant interest globally in soil carbon capture from atmospheric CO2 and sequestration in the soil via plants. Adopting effective management methods and increasing soil carbon inputs over outputs will consequently play a crucial role in soil carbon sequestration (SCseq) and plant nutrition. As a result, boosting agricultural yield is necessary for food security, notoriously in developing countries. Several unanswered problems remain regarding climate change and its impacts on plant nutrition and global food output, which will be elucidated over time. This review provides several remarkable pieces of information about the influence of changing climatic variables on plant nutrients (availability and uptake). Additionally, it addresses the effect of soil carbon sequestration, as one of climate change mitigations, on plant nutrition and how relevant management practices can positively influence this.

scholarly journals Combined Fertilization Could Increase Crop Productivity and Reduce Greenhouse Gas Intensity through Carbon Sequestration under Rice-Wheat Rotation

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2540
Author(s):  
Tengfei Guo ◽  
Haoan Luan ◽  
Dali Song ◽  
Shuiqing Zhang ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Greenhouse Gas ◽  
Wheat Yield ◽  
Cropping System ◽  
C Sequestration ◽  
Crop Productivity ◽  
Soil Carbon Sequestration ◽  
Rotation System ◽  
Greenhouse Gas Intensity

Quantifying greenhouse gas intensity (GHGI) and soil carbon sequestration is a method to assess the mitigation potential of agricultural activities. However, the effects of different fertilizer amendments on soil carbon sequestration and net GHGI in a rice-wheat cropping system are poorly understood. Here, fertilizer treatments including PK (P and K fertilizers); NPK (N, P and K fertilizers), NPK + OM (NPK plus manure), NPK + SR (NPK plus straw returning), and NPK + CR (NPK plus controlled-release fertilizer) with equal N input were conducted to gain insight into the change of soil organic carbon (SOC) derived from the net ecosystem carbon budget (NECB), net global warming potential (GWP), and GHGI under rice-wheat rotation. Results showed that compared with NPK treatment, NPK + OM significantly increased wheat yield and NPK + SR caused significant increase in rice yield. Meanwhile, NPK + SR and NPK + CR treatments reduced net GWP by 30.80% and 21.83%, GHGI by 36.84% and 28.07%, respectively, which suggested that improved grain production could be achieved without sacrificing the environment. With the greatest C sequestration, lowest GHGI, the NPK plus straw returning practices (NPK + SR) might be the best strategy to mitigate net GWP and improve grain yield and NUE in the current rice-wheat rotation system.

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