Plastic film mulching mitigates the straw-induced soil greenhouse gas emissions in summer maize field

Li, Na; Ma, Xingxia; Bai, Jin-Ze; Xu, Hongwei; Feng, Yongzhong; Ren, Guangxin; Han, Xinhui; Wang, Xiaojiao; Ren, Chao; De-jie, Kong

doi:10.1016/j.apsoil.2020.103876

Cited by 26 publications

(18 citation statements)

References 50 publications

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“…The results found that the high rate of straw incorporation decreases the WSOC/WSTN ratio and improves the soil BGE, as indicated by [4]. As for the MBN/TN and WSTN/TN ratios, the high rate treatment increased compared with the control at 0-20 cm, suggesting that this treatment is beneficial for the improvement of soil N. This might be associated with the release of N in crop straw and microbial body [3,4].…”

Section: Discussionmentioning

confidence: 88%

“…In this study, the MBC/MBN ratio was the highest during high incorporation rate treatment at 0-10 and 20-30 cm depth, indicating that the uptake of N in rice under this treatment is larger, and thus the available N content in soil is lower. Kroer [34] found that the WSOC/WSTN ratio is inversely proportional to the bacterial growth efficiency (BGE), which reveals the proportion of C transferred from substrate (WSOM) to biomass by heterotrophic bacterial cells [4,34]. The results found that the high rate of straw incorporation decreases the WSOC/WSTN ratio and improves the soil BGE, as indicated by [4].…”

Section: Discussionmentioning

confidence: 99%

“…Kroer [34] found that the WSOC/WSTN ratio is inversely proportional to the bacterial growth efficiency (BGE), which reveals the proportion of C transferred from substrate (WSOM) to biomass by heterotrophic bacterial cells [4,34]. The results found that the high rate of straw incorporation decreases the WSOC/WSTN ratio and improves the soil BGE, as indicated by [4]. As for the MBN/TN and WSTN/TN ratios, the high rate treatment increased compared with the control at 0-20 cm, suggesting that this treatment is beneficial for the improvement of soil N. This might be associated with the release of N in crop straw and microbial body [3,4].…”

Section: Discussionmentioning

confidence: 99%

“…Long-term addition of large amounts of C and N to farmland affects soil labile C and N [3]. Soil labile C and N are the most important parts of soil C and N stocks; they have far-reaching impacts on the soil C and N dynamics [4]. Soil organic matter alternations display slow degradation and are difficult to evaluate for short-term studies because of high background levels [5].…”

Section: Introductionmentioning

confidence: 99%

“…Studies have proposed that crop straw is rich in organic matter, K, P, N, and microelements, and can serve as a vital natural organic fertilizer [9][10][11]. Incorporating crop straw into the soil improves soil fertility, promotes soil physical-structural stability, enhances soil C and N stocks, and increases crop yields [2,4,11,12]. To date, there have been many studies on the response of soil nutrients and crop yields to crop straw additions [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Wheat Straw Incorporation Affecting Soil Carbon and Nitrogen Fractions in Chinese Paddy Soil

et al. 2021

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Soil organic carbon (SOC) and nitrogen (N) fractions greatly affect soil health and quality. This study explored the effects of wheat straw incorporation on Chinese rice paddy fields with four treatments: (1) a control (CK), (2) a mineral NPK fertilizer (NPK), (3) the moderate wheat straw (3 t ha−1) plus NPK (MSNPK), and (4) the high wheat straw (6 t ha−1) plus NPK (HSNPK). In total, 0–5, 5–10, 10–20, and 20–30 cm soil depths were sampled from paddy soil in China. Compared with the CK, the HSNPK treatment (p < 0.05) increased the C fraction content (from 13.91 to 53.78%), mainly including SOC, microbial biomass C (MBC), water-soluble organic C (WSOC), and labile organic C (LOC) in the soil profile (0–30 cm), and it also (p < 0.05) increased the soil N fraction content (from 10.70 to 55.31%) such as the soil total N (TN) at 0–10 cm depth, microbial biomass N (MBN) at 0–20 cm depth, total water-soluble N (WSTN) at 0–5 and 20–30 cm depths, and total labile N (LTN) at 0–30 cm depth. The primary components of soil LOC and LTN are MBC and MBN. Various soil C and N fractions positively correlated with each other (p < 0.05). The HSNPK treatment promoted the soil MBC, WSOC, and LOC to SOC ratios, and also promoted MBN, WSTN, and LTN to soil TN ratios at a depth of 0–20 cm. To summarize, the application of HSNPK could maintain and improve rice paddy soil quality, which leads to increased rice grain yields.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wheat Straw Incorporation Affecting Soil Carbon and Nitrogen Fractions in Chinese Paddy Soil

et al. 2021

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A balance among irrigation and fertilization regimes to reduce greenhouse gases emissions from saline and alkaline soils

Zhang,

Zamanian,

Raza

et al. 2023

Land Degrad Dev

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Agricultural practices of nitrogen and irrigation overuse bring lots of environmental problems, such as greenhouse gases (GHGs) emissions, soil, and water pollution. With the fast expansion of saline and alkaline agricultural soils in the Tarim River Basin, field practice must be very cautious facing water limitations and global warming. The GHGs were measured 1–2 times weekly and water and fertilizer use efficiency were evaluated under five treatments: (1) fallow (Control); (2) no N (kg N ha−1) and no irrigation (mm) (0N0W); (3) 200 and 355 (LNLW); (4) 230 and 475 (MNMW), and (5) 320 and 655 (HNHW) (traditional treatment) from 2018 to 2019 under maize in Aksu in the Tarim River Basin. The GHGs increased with fertilization and irrigation. The cumulative GHGs were 0.6–5.9 Mg CO2–C ha−1, 0.2–3.6 kg N2O–N ha−1, and increased significantly with biomass increase. The cumulative CH4 was −0.03 to −0.12 kg C ha−1. The MNMW resulted in the highest average water use efficiency (27 kg ha−1 mm−1), irrigation water use efficiency (32 kg ha−1 mm−1), and agronomic N use efficiency (44 kg kg−1), but the lowest greenhouse gas intensity (0.4 kg CO2‐eq ha−1 grain yield). The MNMW reduced the average of 10 mm water, 5 kg N ha−1 fertilizer, and 4 × 10−3 kg CO2‐eq ha−1 GHGI earning 1 t ha−1 maize compared to HNHW. The CO2 emission had a strong relationship with temperature (T) and soil moisture (W) (CO2 emission = (exp (a + bW + cW2)) Q10(T‐20)/10)) (R2 = 0.59–0.92). The lowest was in the LNLW treatment in 2019; the highest was in the HNHW in 2018). The emission of CO2 responding to fertilization was below the global trend, but that of N2O was above under maize in saline and alkaline soils (pH 7–9). In conclusion, MNMW was the best field management to mitigate GHGs with the highest water and fertilizer use efficiency under maize in saline and alkaline soils in Tarim River Basin, where had the higher N2O emission risk.

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Role of Agricultural Soil Mulching on Net Global Warming Potential and Greenhouse Gas Intensity of Different Cropping Systems

Malghani¹,

Liao²

2022

Mulching in Agroecosystems

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Plastic film mulching mitigates the straw-induced soil greenhouse gas emissions in summer maize field

Cited by 26 publications

References 50 publications

Wheat Straw Incorporation Affecting Soil Carbon and Nitrogen Fractions in Chinese Paddy Soil

Wheat Straw Incorporation Affecting Soil Carbon and Nitrogen Fractions in Chinese Paddy Soil

A balance among irrigation and fertilization regimes to reduce greenhouse gases emissions from saline and alkaline soils

Role of Agricultural Soil Mulching on Net Global Warming Potential and Greenhouse Gas Intensity of Different Cropping Systems

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