Simulation of Soil Water and Heat Flow under Plastic Mulching and Different Ridge Patterns

Li, Ruofan; Ma, Jun; Sun, Xihuan; Guo, Xianghong; Zheng, Lihua

doi:10.3390/agriculture11111099

Cited by 10 publications

(5 citation statements)

References 50 publications

(56 reference statements)

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“…Yang et al [33] showed that plastic film mulching can increase the surface soil temperature, especially in the early and middle stages of cotton growth. In the early growth stage (sowing-emergence), the daily average surface soil temperature of the covered plots was 2.5-3.2 • C higher than that of the control group, which may be due to the fact that the plastic film mulching reduced soil moisture evaporation and latent heat flux, thus increasing the soil temperature [34]. The increase in the ground temperature is beneficial to the vegetative growth of cotton and ultimately promotes cotton growth [35].…”

Section: Discussionmentioning

confidence: 95%

Plastic Mulching Effects on Cotton Seedling and Wilt Disease, Lint Yields, and Yield Components

You,

Zhang,

Xue

et al. 2024

Agriculture

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Plastic mulching is a widely used intensive planting system for cotton production in China. For the present study, the effects of three plastic mulching treatments (i.e., NDNM: normal sowing date with no plastic mulching as a positive control, NDM: normal sowing date with plastic mulching, and LDM: sowing 7 days late with plastic mulching) were studied in the field on seedling disease, Verticillium wilt, and Fusarium wilt as well as on the lint yield in cotton from 2019 to 2020. The treatment effects were evaluated based on the disease incidence (DI) and disease severity index (DSI), seedling fresh weights, lint yields, and yield components. For all cultivars (SCRC28, SCRC21, and Jimian11), both the DIs and DSIs of the seedling disease were lower in the LDM treatment than in the NDNM and NDM treatments. The DIs and DSIs of Fusarium wilt for all the cultivars were higher in the NDNM treatment than in the NDM and LDM treatments. However, the DIs and DSIs for Verticillium wilt were lower in the NDNM treatment. Moreover, the seedling fresh weights, average lint yields, and boll numbers per square meter were all highest in the NDM treatment and lowest in the NDNM treatment. The results of this study demonstrated that the use of plastic mulching with a suitable seed sowing date would be an appropriate cultural practice for enhancing cotton production and reducing the severity of cotton seedling and Fusarium wilt disease.

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Section: Discussionmentioning

confidence: 95%

Plastic Mulching Effects on Cotton Seedling and Wilt Disease, Lint Yields, and Yield Components

You,

Zhang,

Xue

et al. 2024

Agriculture

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“…The temporal change in soil temperature is closely related to the growth period of cotton, and PFM can change the latent heat flux, such as cotton population water evaporation and soil water transpiration ( Jiang et al, 2022 ; Li et al, 2021 ), and then increase thermal radiation capture and topsoil temperature, especially in the early and middle stages of cotton growth ( Zong et al, 2020 ; Ghosh et al, 2006 ). In this study, before the initial flowering stage (July 1), especially before the first irrigation (June 20), the temperature of the 0–50 cm soil layer in the cotton field covered with plastic film was higher by approximately 2−4 °C than that in the uncovered cotton field.…”

Section: Discussionmentioning

confidence: 99%

“…Consistently, Zhao et al (2012) revealed that the daily average surface soil temperature in the covered plots was 2.5−3.2 °C higher than that in the control group in the early growth stage (sowing-seedling). This may be due to the reduction of soil water evaporation and the decrease of latent heat flux by plastic film mulching and then increase the soil temperature ( Li et al, 2021 ). Less obvious effect of PFM on the soil temperature increase (approximately 1−2 °C) of the soil below 50 cm was indicated.…”

Section: Discussionmentioning

confidence: 99%

Effects of plastic film mulching on the spatiotemporal distribution of soil water, temperature, and photosynthetic active radiation in a cotton field

Yang

Feng

et al. 2022

PeerJ

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Plastic film mulching (PFM) affects the spatiotemporal distribution of soil moisture and temperature, which in turn affects cotton growth and the spatiotemporal distribution of canopy photosynthetically active radiation (PAR). Due to the spatial heterogeneity of soil moisture, temperature and limited monitoring methods, the issues such as relatively few sampling points and long sampling intervals in most existing studies prevent the accurate quantification of spatiotemporal changes in moisture and temperature along soil profile. To investigate the effects of PFM on spatiotemporal changes in soil moisture, temperature, and canopy PAR in cotton fields, two field trials of plastic film-mulched (M) and nonmulched (NM) cultivations were performed in 2018 and 2019. The grid method was used for the soil information continuous monitoring and multiple-time fixed-site canopy PAR monitoring during the duration of cotton growth. Two-year field trial data showed that, M cultivation increased soil moisture by approximately 13.6%–25% and increased temperature by 2–4 °C in the 0–50 cm soil layer before the first irrigation (June 20) and by 1–2 °C in the 70–110 cm soil layer, compared with NM cultivation. In addition, the temperature difference between the two treatments gradually decreased with the increase in irrigation and air temperature. The M treatment reached the peak PAR interception rate 10 days earlier than the NM treatment. In 2018 and 2019, the PAR peak value under the M treatment was 4.62% and 1.8% higher than that under the NM treatment, respectively, but the PAR interception rate was decreased rapidly in the late growth stage. Overall, PFM had an effect on soil moisture retention during the whole growth period and greatly increased the soil temperature before budding stage, thus promoted the early growth of cotton. Considering this, we suggest that the irrigation quota and frequency could be appropriately decreased in the case of plastic film mulching cultivation. For nonmulching cultivation, the irrigation quota and frequency should be increased, and it is necessary to take measures to improve the soil temperature before middle July.

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“…Understanding heat conduction in soil water layers allows farmers and agricultural scientists to decide when to plant, irrigate, or harvest crops. (Balota et al, 2008; Li et al, 2021; Rodríguez et al, 2015) Efficient water use is a global concern. Studying heat conduction in the soil allows for the determination of how various soil types retain or release heat, consequently impacting the moisture content of the soil; this knowledge can help develop precise irrigation strategies.…”

Section: Introductionmentioning

confidence: 99%

Thermal conductivity in a vadose zone: A novel spectral solution and application by the implication of significant coherence of thermal condition in the shallow soil water layer

Shih

2024

Hydrological Processes

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In the context of the heterogeneity in the unsaturated or vadose zone, accurately representing the analytical mechanisms and in‐situ water content within the soil layer poses a significant challenge. Particularly in shallow layers, thermal conditions exhibit rapid changes in response to evolving surface temperatures. This study proposes a hypothesis suggesting that the in situ heat mechanism may notably impact the soil water layer. The research introduces an innovative approach to theoretically uncover thermal conditions, including soil temperature, soil temperature gradients, and heat flux, within the shallow Quaternary gravel layer at various depths through spectral analysis of temporal observations. The study presents a stochastic inverse solution to estimate thermal conductivity by leveraging spectral analysis of soil heat flux and temperature gradients. The findings reveal that thermal conditions exhibit the most prominent periodic fluctuations during the diurnal process over a 24‐hour cycle. The soil temperature gradients and heat flux measurements at depths of 0.1, 0.3, 0.6, and 1.2 m demonstrate their ability to capture changes in soil temperature and air temperature to a certain extent within the frequency domain. Furthermore, the analysis highlights the intrinsic uncertainty and sensitivity of estimating thermal conductivity in heterogeneous soil environments. The wide variability observed in thermal conductivity values, coupled with their dependence on soil type and environmental conditions, underscores the need for careful consideration of these factors in future studies and modeling efforts. Applying the derived inverse spectral solution allows for determining thermal conductivity throughout the soil‐water system across depths ranging from 0.1 to 1.2 m. As a result, this research demonstrates the feasibility and practicality of assessing the thermal conductivity of the soil layer in conjunction with heat flux and temperature gradients through spectral analysis.

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Simulation of Soil Water and Heat Flow under Plastic Mulching and Different Ridge Patterns

Cited by 10 publications

References 50 publications

Plastic Mulching Effects on Cotton Seedling and Wilt Disease, Lint Yields, and Yield Components

Plastic Mulching Effects on Cotton Seedling and Wilt Disease, Lint Yields, and Yield Components

Effects of plastic film mulching on the spatiotemporal distribution of soil water, temperature, and photosynthetic active radiation in a cotton field

Thermal conductivity in a vadose zone: A novel spectral solution and application by the implication of significant coherence of thermal condition in the shallow soil water layer

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