Long-term effect of no-tillage on soil organic carbon and nitrogen in an irrigated rice-based cropping system

Huang, Min; Zhou, Xuefeng; Cao, Fuliang; Zou, Yingbin

doi:10.1007/s10333-015-0506-y

Cited by 18 publications

(11 citation statements)

References 19 publications

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“…Traditional farming practice increased an average SOC by 2.23% over the initial value, as was also reported by Smith et al [45]. Our results show that the maintenance of TOC concentration and stocks under T 2 may be attributed to the incorporation of 30% rice residue of each crop and application of 5 Mg FYM ha −1 to the first crop at every two-year interval by farmers [43,46]. Several researchers have indicated beneficial effects of residue incorporation/retention and application of organic manure on the improvement of TOC concentration and stocks in a rice field [45,47].…”

Section: Soil Organic Carbon and Stockssupporting

confidence: 87%

“…Significant differences in SOC concentration (0-40 cm) after four years of tillage and straw retention practices in China followed the order of NT > PT > RT [48]. The positive effect of conservation tillage along with organic manure and residue retention/incorporation in increasing the TOC in paddy soils of India have also been reported [7,43,45,49]. Further, the integrated uses of organics with inorganic fertilizers also have been reported to enhance productivity and SOC concentration over that with the sole application of fertilizer or manure [35,50].…”

Section: Soil Organic Carbon and Stocksmentioning

confidence: 86%

“…Many researchers have shown that, if organic residues are returned to the soil, pH can be increased due to the decarboxylation of organic anions on decomposition by microorganisms [42,43]. Many reports have indicated the increase in soil pH with crop residues retention/ incorporation [40,[42][43][44].…”

Section: Bulk Density and Soil Phmentioning

confidence: 99%

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Effects of Conservation Tillage and Nutrient Management Practices on Soil Fertility and Productivity of Rice (Oryza sativa L.)–Rice System in North Eastern Region of India

et al. 2017

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Over centuries and even today, traditional farming practices are well performed without any ecological degradation. However, management practice such as conservative tillage combined with nutrient and residue could increase the crop production as well as soil fertility. A three-year replicated study was conducted to assess the effects of agronomic modification of traditional farming practices on productivity and sustainability of rice (wet season)-rice (dry season) system (RRS). The replacement of farmers practice (T 2 ) with conservation effective tillage (no-till (NT)) and integrated nutrient management (INM) practice along with 30% residue retention (T 5 ) enhanced the straw, root and biomass yield of both wet season rice (WR), dry season rice (DR) and system as a whole over T 2 . Treatment T 5 recorded significantly lower soil bulk density ( b ) and higher pH than the T 2 after three years of the experiment. Further, treatment T 5 increased total soil organic carbon (2.8%), total soil organic carbon stock (2.8%), carbon sequestration rate (336.5 kg ha −1 year −1 ), cumulative carbon stock (142.9%) and carbon retention efficiency (141.0%) over T 2 of 0-20 cm depth after three year. The soil microbial biomass carbon concentration was significantly the highest under T 5 . Similarly, the dehydrogenase activity was the maximum under T 5 . Adoption of conservation tillage and nutrient management practice involving NT and INM along with residue retention can enhance the system productivity, and C and N sequestration in paddy soils is thereby contributing to the sustainability of the RRS.

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Section: Soil Organic Carbon and Stockssupporting

confidence: 87%

Section: Soil Organic Carbon and Stocksmentioning

confidence: 86%

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Effects of Conservation Tillage and Nutrient Management Practices on Soil Fertility and Productivity of Rice (Oryza sativa L.)–Rice System in North Eastern Region of India

et al. 2017

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“…DayCent overestimated soil C stocks especially in the first years of the experiment (Table 3). The current SOC stocks observed (2015) corroborate what has been observed in previous studies on tillage systems in paddy rice: an increase in SOC in the topsoil, without significant differences across tillage systems (Nascimento et al, 2009;Cheng-Fang et al, 2012;Huang et al, 2016). Excess water in rice paddies may decrease physical protection of organic matter in soil aggregates in no-tilled flooded soils (Nascimento et al, 2009).…”

Section: Rice Yieldssupporting

confidence: 85%

“…In this anoxic soil environment, physical protection of SOM in soil aggregates is less effective in stabilizing SOM than in aerobic soils, possibly by the effect of water decreasing aggregate stability during the flooded rice growing season (Nascimento et al, 2009). Consequently, SOC is increased to a very small extent, if any, by the adoption of no-tillage in irrigated rice fields (Nascimento et al, 2009;Rosa et al, 2011;Ghimire et al, 2012;Das et al, 2014;Huang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Daycent Simulation of Methane Emissions, Grain Yield, and Soil Organic Carbon in a Subtropical Paddy Rice System

Weiler

Tornquist

Zschornack

et al. 2018

Rev. Bras. Ciênc. Solo

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ABSTRACT:The DayCent ecosystem model, widely tested in upland agroecosystems, was recently updated to simulate waterlogged soils. We evaluated the new version in a paddy rice experiment in Southern Brazil. DayCent was used to simulate rice yield, soil organic carbon (SOC), and soil CH 4 fluxes. Model calibration was conducted with a multiple-year dataset from the conventional tillage treatment, followed by a validation phase with data from the no-tillage treatment. Model performance was assessed with statistics commonly used in modeling studies: root mean square error (RMSE), model efficiency (EF), and mean difference (M). In general, DayCent slightly underestimated rice yields under no-tillage (by 0.07 Mg ha -1 , or 9.2 %) and slightly overestimated soil C stocks, especially in the first years of the experiment. A comparison of observed and simulated CH 4 daily fluxes showed that DayCent could simulate the general patterns of soil CH 4 fluxes with slight discrepancies. Daily soil CH 4 fluxes were overestimated by 0.43 kg ha -1 day -1 (12 %). Growth-season CH 4 emissions under no-tillage were also somewhat overestimated (11 % or 45.29 kg ha -1). We conclude that DayCent simulated SOC, rice yield, and CH 4 with some inaccuracies, but the overall performance was considered adequate. However, the model failed to represent the observed potential of no-tillage to mitigate CH 4 emissions, possibly because model algorithms could not capture the actual field conditions derived from no-tillage management, such as soil redox potential, plant senescence, and surface placement of plant residue.

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Effects of irrigation and fertilization on grain yield, water and nitrogen dynamics and their use efficiency of spring wheat farmland in an arid agricultural watershed of Northwest China

Chen

Xiong

et al. 2022

Agricultural Water Management

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Long-term effect of no-tillage on soil organic carbon and nitrogen in an irrigated rice-based cropping system

Cited by 18 publications

References 19 publications

Effects of Conservation Tillage and Nutrient Management Practices on Soil Fertility and Productivity of Rice (Oryza sativa L.)–Rice System in North Eastern Region of India

Effects of Conservation Tillage and Nutrient Management Practices on Soil Fertility and Productivity of Rice (Oryza sativa L.)–Rice System in North Eastern Region of India

Daycent Simulation of Methane Emissions, Grain Yield, and Soil Organic Carbon in a Subtropical Paddy Rice System

Effects of irrigation and fertilization on grain yield, water and nitrogen dynamics and their use efficiency of spring wheat farmland in an arid agricultural watershed of Northwest China

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