Non-leguminous winter cover crop and nitrogen rate in relation to double rice grain yield and nitrogen uptake in Dongting Lake Plain, Hunan Province, China

Zhu, Beiwei; Yi, Lixia; Xu, Heshui; Guo, Limei; Hu, Yuegao; Zeng, Zhaohai; Chen, Fu; Liu, Zhangyong

doi:10.1016/s2095-3119(16)61331-x

Cited by 12 publications

(6 citation statements)

References 22 publications

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“…Grain yield and environmental impacts need to be considered during rice production decision-making ( Zhu et al, 2016 ). Compared with DR and RW systems, RR was a low-cost and high-output cultivation mode not only because of the low labor intensity but also because of the feature of harvesting twice in a single year while only sowing once ( Tables 2 , 3 ).…”

Section: Discussionmentioning

confidence: 99%

Shifting Rice Cropping Systems Mitigates Ecological Footprints and Enhances Grain Yield in Central China

et al. 2022

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Intensive cereal production has brought about increasingly serious environmental threats, including global warming, environmental acidification, and water shortage. As an important grain producer in the world, the rice cultivation system in central China has undergone excessive changes in the past few decades. However, few articles focused on the environmental impacts of these shifts from the perspective of ecological footprints. In this study, a 2-year field trial was carried out in Hubei province, China, to gain insight into carbon footprint (CF), nitrogen footprint (NF), and water footprint (WF) performance. The three treatments were, namely, double-rice system (DR), ratoon rice system (RR), and rice-wheat system (RW). Results demonstrated that RR significantly increased the grain yield by 10.22–15.09% compared with DR, while there was no significant difference in the grain yield between RW and DR in 2018–2019. All of the calculation results by three footprint approaches followed the order: RR < RW < DR; meanwhile, RR was always significantly lower than DR. Methane and NH3 field emissions were the hotspots of CF and NF, respectively. Blue WF accounts for 40.90–42.71% of DR, which was significantly higher than that of RR and RW, primarily because DR needs a lot of irrigation water in both seasons. The gray WF of RW was higher than those of DR and RR, mainly due to the higher application rate of N fertilizer. In conclusion, RR possesses the characteristics of low agricultural inputs and high grain yield and can reduce CF, NF, and WF, considering the future conditions of rural societal developments and rapid demographic changes; we highlighted that the RR could be a cleaner and sustainable approach to grain production.

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Section: Discussionmentioning

confidence: 99%

Shifting Rice Cropping Systems Mitigates Ecological Footprints and Enhances Grain Yield in Central China

et al. 2022

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“…There were diverse reports on the effects of rotation on the main cereal crop yields when the same rotation pattern was applied continuously over years. Crops followed by legume rotations usually showed promoted nitrogen accumulation and higher grain yields (Yu et al 2014;Zhu et al 2016). Sometimes, yield reduction of the main crop resulted from rotation could be attributed to the competition for nitrogen after the incorporation of the second crop residue, such as rape and ryegrass because of a high carbon/nitrogen ratio (Armstrong et al 1996;Nie et al 2019), in spite that the rotation treatments were coupled with crop residue return, which means an additional nitrogen supply during the main rice crop season (Zhu et al 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Crops followed by legume rotations usually showed promoted nitrogen accumulation and higher grain yields (Yu et al 2014;Zhu et al 2016). Sometimes, yield reduction of the main crop resulted from rotation could be attributed to the competition for nitrogen after the incorporation of the second crop residue, such as rape and ryegrass because of a high carbon/nitrogen ratio (Armstrong et al 1996;Nie et al 2019), in spite that the rotation treatments were coupled with crop residue return, which means an additional nitrogen supply during the main rice crop season (Zhu et al 2016). In this study, rotation with wheat or with rape had no significant effect on the grain yield and above ground biomass of rice for both years, possibly due to the high level of rice grain yields (ranged from 12.1 to 13.6 t ha -1 , Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Previous research has confirmed that rotation in paddy cropping systems, especially those with legumes could play an important role in promoting nutrient cycling, improving soil fertility and maintaining food production by reducing fertilizer investment (Nie et al 2019). The release of environmental hazard compounds such as NO 3 leaching and N 2 O emission from farmland could also be reduced by rotation (Yu et al 2014;Machado et al 2021), or by replacing winter fallow with cover crops (Zhu et al 2016). Fewer N losses were observed from crop residues than from chemical fertilizers when residues were incorporated into the soil in different rotation systems (Congreves et al 2017;Taveira et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Rotation with winter crops has been recognized as effective to promote nutrient cycling and reduce N 2 O emission from paddy fields (Yu et al 2014;Zhu et al 2016). However, the effects of winter crops rotation on radiation and heat use efficiencies, and global warming potential of paddy systems are not well reported.…”

Section: Introductionmentioning

confidence: 99%

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Rice-Rape Rotation Benefits to Improve Radiation and Heat Use Efficiencies and Mitigate Global Warming Potential of Paddy Cropping Systems in Central China

GONG¹

2021

IJAB

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Replacing bare fallow by rotation with winter cereal crops such as winter wheat and oil rape have been used to improve annual productivity in paddy cropping system in central China. However, the effects of rotation on light and heat resources utilization and greenhouse gases have yet to be measured. A two-year field experiment was conducted to compare solar radiation and heat use efficiencies, methane (CH4) and nitrous oxide (N2O) emissions and global warming potential (GWP) of two winter rotations: rice-wheat and rice-rape taking rice-fallow as a check. The results of this study showed that rice-wheat had the highest annual grain yield (two-year means were 16.2 t ha-1) and annual above ground biomass (32.9 t ha-1) followed by ricerape and by rice-fallow. No significant effect was observed for winter rotation on the performance of rice grain yield and growth, in spite of a large quantity of straw returning by winter crops. Solar radiation and heat resources utilization and their production efficiency were improved in the winter season by rotation with winter crops. Rice-wheat and rice-rape also increased light and heat resources utilization efficiency from the annual perspective. Compared with rice-fallow, CH4 flux in the rice season among the two studying years was increased by 42.0% by rice-wheat but was decreased by 35.6% by rice-rape. For the annual level, CH4 flux was promoted by 40.9% by rice-wheat and declined by 35.5% by rice-rape. For the rice season the N2O seasonal flux was increased by 54.2 and by 8.3% in rice-wheat and rice-rape plots, respectively. The values for GWP and for yield-scaled GWP were highest in rice-wheat and lowest in rice-rape system. In conclusion, rice-rape system could be a better choice to increase solar radiation and heat resources utilization and mitigate greenhouse gases emission. © 2021 Friends Science Publishers

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Strategic Intervention for Climate-Smart Agriculture

Sakha,

Gweyi-Onyango

2024

Technological Approaches for Climate Smart Agriculture

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Non-leguminous winter cover crop and nitrogen rate in relation to double rice grain yield and nitrogen uptake in Dongting Lake Plain, Hunan Province, China

Cited by 12 publications

References 22 publications

Shifting Rice Cropping Systems Mitigates Ecological Footprints and Enhances Grain Yield in Central China

Shifting Rice Cropping Systems Mitigates Ecological Footprints and Enhances Grain Yield in Central China

Rice-Rape Rotation Benefits to Improve Radiation and Heat Use Efficiencies and Mitigate Global Warming Potential of Paddy Cropping Systems in Central China

Strategic Intervention for Climate-Smart Agriculture

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