Partial‐film mulch returns the same gains in yield and water use efficiency as full‐film mulch with reduced cost and lower pollution: a meta‐analysis

Lei, Tong; Luo, Caixia; Zhang, Runze; Hu, Chengzheng; Xu, Jiaxing; Sadras, Víctor O.; Yang, Xueyun; Zhang, Shulan

doi:10.1002/jsfa.11248

Cited by 9 publications

(3 citation statements)

References 33 publications

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“…Film mulching improved the water use efficiency in both years, whereas the water use efficiency under biochar increased during 2020–2021, but decreased during 2021–2022 (Table 5). The water use efficiency determined in the present study under film mulching agrees with previous meta‐analyses based on the Loess Plateau of China, which showed that film mulching increased the water use efficiency by 16.2%–21.9% (Lei et al, 2021; Ma et al, 2018). Another meta‐analysis based on 43 studies demonstrated that biochar had a positive effect on the water use efficiency, but the effect varied among soil types, biochar types, and management factors (Gao et al, 2020).…”

Section: Discussionsupporting

confidence: 91%

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Effects of biochar versus film mulching on soil hydrothermal properties and wheat crop performance in semi‐arid loess

Wang,

Fan,

Shao

et al. 2024

European J Soil Science

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Film mulching and biochar have been applied as effective measures for increasing crop yields in arid and semi‐arid areas for many years. However, the effects of the temporal and spatial distributions of soil hydrothermal properties on crop yields are still unclear under film mulching and biochar addition. Thus, we conducted a field experiment with winter wheat on the Loess Plateau of China for two years (2020–2022) with three treatments: control, film mulching, and biochar. The results demonstrated that film mulching and biochar addition increased the average soil temperature in the 0–50 cm soil depth throughout the whole growth period and the influence depth exceeded 50 cm. Biochar addition only significantly increased soil temperature in the overwintering stage (p < 0.05). Film mulching increased the maximum and minimum temperatures in the 0–50 cm soil depth at seedling stage. Film mulching and biochar increased average ≥10°C accumulated soil temperature by increasing the ≥10°C accumulated soil temperature in the daytime and nighttime, and the number of days with a daily soil temperature ≥10°C during the whole growth period. Film mulching improved soil water storage in the 0–300 cm soil depth in each growth stage during both years, and also increased the wheat grain yield, aboveground biomass, and water use efficiency. Biochar addition increased the wheat grain yield and aboveground biomass of two years compared with control, but the increases were not significant (p > 0.05). In addition, correlation analysis showed that adequate temperatures in the 0–50 cm soil depth during the seedling and overwintering stages, and suitable soil moisture conditions in the 0–300 cm soil depth before sowing, jointing, and filling stages were important factors for increasing wheat grain yields under film mulching. In summary, film mulching mainly regulated the soil temperature in the 0–50 cm soil depth and moisture conditions in the 0–300 cm soil depth during different growth stages to increase grain yields. Film mulching has more obvious effects on moisture regulation, temperature regulation, and yield increases than biochar addition. Some environmentally friendly measures (such as conservation agriculture) with the same yield improving effect as mulching are also recommended to explore and promote in theLoess Plateau region.

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Section: Discussionsupporting

confidence: 91%

“…present study under film mulching agrees with previous meta-analyses based on the Loess Plateau of China, which showed that film mulching increased the water use efficiency by 16.2%-21.9% (Lei et al, 2021;Ma et al, 2018).…”

Section: Effect Of Film Mulching and Biochar On Soil Moisturesupporting

confidence: 92%

Effects of biochar versus film mulching on soil hydrothermal properties and wheat crop performance in semi‐arid loess

Wang,

Fan,

Shao

et al. 2024

European J Soil Science

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“…Seasonal water shortage, large variations in inter-and intra-annual precipitation, and excessive evaporation are major constraints to rainfed wheat production in arid and semiarid areas [1,3,4]. Mulches including straw [5,6], sand or gravel [7], and plastic film [6,8,9] have been extensively tested to increase precipitation utilization efficiency. Plastic mulch reduces soil evaporation, increases soil temperature and root and shoot growth, and increases winter wheat yield and water use efficiency compared to bare ground in the Loess Plateau [10,11].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Structural Dry Matter, Water Soluble Carbohydrates and Leaf Senescence Mediate the Response of Winter Wheat Yield to Soil Cover and Water Availability

Zhang

Lei

et al. 2023

Agronomy

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Plastic film mulching often increases the yield of winter wheat in the Loess Plateau of China, but the physiological mechanisms are unclear, especially in response to the interaction between mulch and water supply. In this study, we investigated the interactive effects of initial soil water (dry, moderate, and wet), soil cover (plastic mulch, bare soil), and seasonal conditions on the dynamics of dry matter partitioning, water-soluble carbohydrates (WSC), and flag leaf senescence, and their relations with yield and its components. Plastic mulch increased dry matter accumulation at anthesis and maturity relative to bare soil, with no interaction with season or initial soil water. Allocation of dry matter to leaf, stem, and spike did not change with soil cover. Compared with bare soil, mulch increased WSC accumulation by 14% at anthesis and its translocation by 16%. Soil cover did not influence the senescence of flag leaf after anthesis as indicated by similar dynamics of the C:N ratio. Grain yield was higher under plastic mulch than bare soil in two out of three seasons, and was associated with a higher translocation amount of WSC and post-anthesis dry matter that linked grain weight, grain number, and harvest index.

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Responses of yield and water use efficiency to the interaction between water supply and plastic film mulch in winter wheat-summer fallow system

Lei

Wang

et al. 2022

Agricultural Water Management

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Partial‐film mulch returns the same gains in yield and water use efficiency as full‐film mulch with reduced cost and lower pollution: a meta‐analysis

Cited by 9 publications

References 33 publications

Effects of biochar versus film mulching on soil hydrothermal properties and wheat crop performance in semi‐arid loess

Effects of biochar versus film mulching on soil hydrothermal properties and wheat crop performance in semi‐arid loess

Dynamics of Structural Dry Matter, Water Soluble Carbohydrates and Leaf Senescence Mediate the Response of Winter Wheat Yield to Soil Cover and Water Availability

Responses of yield and water use efficiency to the interaction between water supply and plastic film mulch in winter wheat-summer fallow system

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