scholarly journals Effect of Nitrogen Fertilizer on Soil CO2 Emission Depends on Crop Rotation Strategy

2020 ◽  
Vol 12 (13) ◽  
pp. 5271
Author(s):  
Dejie Kong ◽  
Nana Liu ◽  
Chengjie Ren ◽  
Huiying Li ◽  
Weiyu Wang ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Co2 Emission ◽  
Management Practices ◽  
N Fertilizer ◽  
Emission Rates ◽  
Fertilizer Management ◽  
Soil Co2 ◽  
Soil Co2 Emission ◽  
The Impact ◽  
Rotation Strategy

Developing environmentally friendly and sustainable nitrogen (N) fertilizer management strategies is crucial in mitigating carbon dioxide (CO2) emission from soil. How N fertilizer management practices influence soil CO2 emission rates under different crop rotations remains unclear. The aim of this study was to assess the impact on soil CO2 emission and soil physicochemical properties of three N fertilizer treatments including traditional rate (TF), optimized rate (0.8TF), and no fertilizer (NF) under three different crop rotation treatments: wheat-fallow (WF), wheat-soybean (WS), and wheat-maize (WM) over two years in a field experiment in northwest China. The rates were 5.51, 5.60, and 5.97 μmol·m−2·s−1 of mean soil CO2 emission under the TF, 0.8TF, and NF treatments, respectively. Mean soil CO2 emission rates were 21.33 and 26.99% higher under the WM rotation compared with the WF and WS rotations, respectively. The WS rotation showed higher soil nutrient content and lower soil CO2 emissions, and reduced fertilizer application. Importantly, soil organic carbon (SOC) concentration in the topsoil can be maximized by including either a summer legume or a summer maize crop in winter wheat rotations, and by applying N fertilizer at the optimal rate. This may be particularly beneficial in the dryland cropping systems of northern China.

scholarly journals Effects of cotton field management practices on soil CO2 emission and C balance in an arid region of Northwest China

2014 ◽  
Vol 6 (4) ◽  
pp. 468-477 ◽  
Author(s):  
QianBing Zhang ◽  
Ling Yang ◽  
ZhenZhu Xu ◽  
YaLi Zhang ◽  
HongHai Luo ◽  
...  
Keyword(s):  
Arid Region ◽  
Co2 Emission ◽  
Management Practices ◽  
Northwest China ◽  
Cotton Field ◽  
Soil Co2 ◽  
Soil Co2 Emission ◽  
C Balance ◽  
Field Management

scholarly journals Temporal variability of soil CO2 emission after conventional and reduced tillage described by an exponential decay in time model

2010 ◽  
Vol 30 (2) ◽  
pp. 224-231 ◽  
Author(s):  
Luis G Teixeira ◽  
Afonso Lopes ◽  
Newton La Scala Jr
Keyword(s):  
Soil Carbon ◽  
Exponential Decay ◽  
Temporal Variability ◽  
Co2 Emission ◽  
Linear Estimator ◽  
Reduced Tillage ◽  
Soil Co2 ◽  
Time Model ◽  
Soil Co2 Emission ◽  
The Impact

To study Assessing the impact of tillage practices on soil carbon losses dependents it is necessary to describe the temporal variability of soil CO2 emission after tillage. It has been argued that large amounts of CO2 emitted after tillage may serve as an indicator for longer-term changes in soil carbon stocks. Here we present a two-step function model based on soil temperature and soil moisture including an exponential decay in time component that is efficient in fitting intermediate-term emission after disk plow followed by a leveling harrow (conventional), and chisel plow coupled with a roller for clod breaking (reduced) tillage. Emission after reduced tillage was described using a non-linear estimator with determination coefficient (R²) as high as 0.98. Results indicate that when emission after tillage is addressed it is important to consider an exponential decay in time in order to predict the impact of tillage in short-term emissions.

scholarly journals Does Biochar Influence Soil CO2 Emission Four Years After Its Application to Soil?

2021 ◽  
Vol 24 (s1) ◽  
pp. 109-116
Author(s):  
Tatijana Kotuš ◽  
Ján Horák
Keyword(s):  
Growing Season ◽  
N Fertilization ◽  
Mitigation Strategy ◽  
N Fertilizer ◽  
Climate Mitigation ◽  
Silt Loam ◽  
Soil Co2 ◽  
Field Site ◽  
Soil Co2 Emission ◽  
The Impact

Abstract Biochar application into soil has potential as a means for reducing soil greenhouse gas emissions and climate mitigation strategy. In this study, we evaluated the impact of two doses of biochar (10 and 20 t.ha−1) applied in 2014, combined with three fertilization levels (N0, N1, N2) on carbon dioxide (CO2) in field conditions during the growing season (April – October) in 2018. The field site is located in the Nitra region of Slovakia – Malanta. The soil in the field was classified as a silt loam Haplic Luvisol. There was not found any statistically significant (P <0.05) decreasing effect of biochar with or without N-fertilizer after four years of its application on average daily and cumulative CO2 emissions, while the CO2 emissions increased with additional N-fertilizer. Biochar decreased (insignificantly) the daily and cumulative CO2 emissions only in the treatments without N-fertilization and in the treatment fertilized with higher level of biochar application (20 t.ha−1) and N-fertilizer (80 kg.N.ha−1). According to these results it can be concluded that the biochar applied to soil is not able to reduce CO2 emissions after four years of its application when it is combined with usual agriculture practices which include N-fertilization.

scholarly journals Soil CO2 emission in ‘Tifton 85’ bermudagrass pasture fertilized with liquid pig slurry

2021 ◽  
pp. 661-668
Author(s):  
Adilson Amorim Brandão ◽  
Eduardo Guimarães Couto ◽  
Renato de Aragão Ribeiro Rodrigues ◽  
Oscarlina Lúcia dos Santos Weber ◽  
Osvaldo Borges Pinto Júnior
Keyword(s):  
Soil Temperature ◽  
Co2 Emissions ◽  
Carbon Dioxide Emissions ◽  
Co2 Emission ◽  
Control Treatment ◽  
Pig Slurry ◽  
Soil Co2 ◽  
Soil C ◽  
Soil Co2 Emission ◽  
The Impact

The application of liquid pig slurry (LPS) to pastures offers potential as a fertilizer but could have a direct influence on soil CO2 emissions. This study evaluated soil carbon dioxide emissions after successive LPS applications to soils under pasture cultivation. The experiment was carried out on ‘Tifton-85’ bermudagrass pasture cultivated in a red-yellow oxisol soil in the municipality of Lucas do Rio Verde-MT, Brazil. Two treatments were evaluated: the control and an application of 20 m3 ha-1 of LPS after each cut of the pasture. The CO2 emissions from the soil were determined using a high-precision infrared gas analyzer. Soil temperature and soil moisture were determined as were micrometeorological variables. The application of LPS had a significant effect on soil C-CO2 flow. The average flow of C-CO2 from the soil for the control treatment and with the application of LPS was 0.236 g C-CO2 m-2 h-1 and 0.291 g C-CO2 m-2 h-1, respectively. The application of LPS increased the accumulated CO2 emissions from the soil by 23.2%. Soil temperature and moisture are the main factors regulating the process of soil CO2 emission. These factors therefore need to be considered when evaluating the impact of LPS application on greenhouse gas emissions

scholarly journals Effect of long-term crop rotations on soil CO2 emission and earthworms

2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Lina Skinulienė ◽  
Vaclovas Bogužas ◽  
Vaida Steponavičienė ◽  
Aušra Sinkevičienė ◽  
Aušra Marcinkevičienė ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Co2 Emission ◽  
Spring Barley ◽  
Crop Rotations ◽  
Plant Residue ◽  
Plant Residues ◽  
Winter Rye ◽  
Soil Co2 ◽  
Soil Co2 Emission

Long-term field experiment was established in 1966 at the Experimental Station of Vytautas Magnus University, in the crop rotation collection of the Institute of Agroecosystems and Soil Science established in 1967. The soil is brown drained deeper carbonic shallow clayey (RDg8–k2) – Endocalcari-Epihypogleyic Cambisol (sicco) (CMg-p-w-can). The experiment was carried out in crops of winter wheat, rye and barley of different crop rotation in sequence of different preceding/catch crops. Crops of winter rye (Secale cereale L.) ‘Matador’, wheat ‘Skagen’ and spring barley ‘Orphelija’ were sown in 8 crop rotations in sequence of different preceding (catch) crop and rye monocrops. The research aim was to investigate the effect of long-term crop rotations on the soil CO2 emission, and on the number and mass of earthworms. After pre-crops, leaving a large amount of plant residues in the soil, the CO2 emission intensity was the highest. It was established that after harvesting of winter cereals and spring barely, the plant residue had the most significant influence on the amount of earthworms.

scholarly journals Spatial variability of soil CO2 emission in a sugarcane area characterized by secondary information

2013 ◽  
Vol 70 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Daniel De Bortoli Teixeira ◽  
Elton da Silva Bicalho ◽  
Alan Rodrigo Panosso ◽  
Carlos Eduardo Pellegrino Cerri ◽  
Gener Tadeu Pereira ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Co2 Emission ◽  
Soil Co2 ◽  
Soil Co2 Emission ◽  
Secondary Information

Organic mulching, irrigation and fertilization affect soil CO2 emission and C storage in tomato crop in the Mediterranean environment

2015 ◽  
Vol 152 ◽  
pp. 39-51 ◽  
Author(s):  
Roberto Mancinelli ◽  
Sara Marinari ◽  
Paola Brunetti ◽  
Emanuele Radicetti ◽  
Enio Campiglia
Keyword(s):  
Co2 Emission ◽  
Soil Co2 ◽  
Mediterranean Environment ◽  
Tomato Crop ◽  
Soil Co2 Emission ◽  
C Storage ◽  
The Mediterranean

Modelling microbial kinetics and thermodynamic processes for quantifying soil CO2 emission

2019 ◽  
Vol 209 ◽  
pp. 125-135 ◽  
Author(s):  
Soumendra N. Bhanja ◽  
Junye Wang ◽  
Narayan K. Shrestha ◽  
Xiaokun Zhang
Keyword(s):  
Co2 Emission ◽  
Soil Co2 ◽  
Microbial Kinetics ◽  
Soil Co2 Emission ◽  
Thermodynamic Processes ◽  
Kinetics And Thermodynamic
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