Plastic film mulching ensures maize climate resilience: A perspective of temperature suitability and optimal sowing period window

IF 6.1 1区农林科学 Q1 SOIL SCIENCE

Soil & Tillage Research Pub Date : 2025-04-22 DOI:10.1016/j.still.2025.106611

Jing Wang , Ling Zhao , Bao-Zhong Wang , Fei Mo , Ning Wang , Shu-Tong Liu , Yuan Song , Ai-Tian Ren , Fu-Jian Mei , Yang Wang , Qi Lu , You-Cai Xiong

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引用次数: 0

Abstract

It is crucial to enhance crop climate resilience using simple but efficient farming strategy. A two-year maize field experiment was conducted to examine the potentials of ridge-furrow mulching (RFM) and flat mulching (FM) with plastic films in a semiarid rainfed site, with flat planting without mulching as CK. Five sowing dates (SD1–5) were arranged with interval of two weeks, and SD2 was normal sowing date. The results showed that the increase in soil temperature under plastic film mulching effectively compensated for the insufficient effective accumulated air temperature across growing seasons. Moreover, plastic mulching significantly enhanced the temperature suitability degree (TSD) for maize growth during both vegetative and reproductive growth periods. And the sowing dates significantly influenced the TSD during reproductive growth period. Regardless of sowing dates, the biomass in FM and RFM was 25.7 % and 32.2 % higher (p < 0.05) in 2019, and 37.2 % and 45.3 % higher (p < 0.05) in 2020, respectively, relative to CK. The maximum biomass was observed in the SD1 or SD2 of RFM group, up to 22,146.8 kg ha⁻¹ . The dynamics of grain yield followed similar trends as those of biomass. Notably, the higher TSD turned to evidently favor biomass accumulation and yield formation. Furthermore, the optimal sowing date window (OSDW) for biomass and grain yield were longer under FM and RFM, relative to CK. Therefore, plastic film mulching resulted in greater promotion potentials to enhance maize climate resilience. Despite of a concern about residual pollution, a relatively complete management system, including the reasonable use of plastic film and timely recycling of residual film, has been established over last 10 years. The implementation of relevant policies can minimize environmental risks. This study provides novel insights into the mechanisms of high and stable yielding under film mulching planting from the perspectives of TSD and OSDW for maize production.

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地膜覆盖确保玉米气候适应能力：温度适宜性和最佳播种期窗口的视角

利用简单而高效的耕作策略提高作物对气候的适应能力至关重要。研究人员进行了一项为期两年的玉米田间试验，考察了在半干旱多雨地区采用脊垄地膜覆盖（RFM）和塑料薄膜平铺地膜覆盖（FM）的潜力。五个播种期（SD1-5）间隔两周，SD2 为正常播种期。结果表明，塑料薄膜覆盖下土壤温度的提高有效地弥补了各生长季有效积温的不足。此外，塑料薄膜覆盖显著提高了玉米无性和生殖生长期的温度适宜度（TSD）。播种日期对生殖生长期的温度适宜度有明显影响。无论播种日期如何，2019 年 FM 和 RFM 的生物量分别比 CK 高 25.7 % 和 32.2 %（p < 0.05），2020 年分别高 37.2 % 和 45.3 %（p < 0.05）。在 RFM 组的 SD1 或 SD2 中观察到最大生物量，达 22,146.8 千克/公顷-¹。谷物产量的变化趋势与生物量的变化趋势相似。值得注意的是，TSD 越高，越有利于生物量的积累和产量的形成。此外，相对于 CK，在 FM 和 RFM 下生物量和谷物产量的最佳播种期窗口（OSDW）更长。因此，塑料薄膜覆盖具有更大的促进潜力，可增强玉米的气候适应能力。尽管残膜污染问题令人担忧，但在过去 10 年中，包括合理使用塑料薄膜和及时回收残膜在内的相对完善的管理体系已经建立。相关政策的实施可以最大限度地降低环境风险。本研究从TSD和OSDW的角度，对玉米生产中地膜覆盖种植的高产稳产机理进行了新的探讨。

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来源期刊

Soil & Tillage Research 农林科学-土壤科学

CiteScore

13.00

自引率

6.20%

发文量

266

审稿时长

5 months

期刊介绍： Soil & Tillage Research examines the physical, chemical and biological changes in the soil caused by tillage and field traffic. Manuscripts will be considered on aspects of soil science, physics, technology, mechanization and applied engineering for a sustainable balance among productivity, environmental quality and profitability. The following are examples of suitable topics within the scope of the journal of Soil and Tillage Research: The agricultural and biosystems engineering associated with tillage (including no-tillage, reduced-tillage and direct drilling), irrigation and drainage, crops and crop rotations, fertilization, rehabilitation of mine spoils and processes used to modify soils. Soil change effects on establishment and yield of crops, growth of plants and roots, structure and erosion of soil, cycling of carbon and nutrients, greenhouse gas emissions, leaching, runoff and other processes that affect environmental quality. Characterization or modeling of tillage and field traffic responses, soil, climate, or topographic effects, soil deformation processes, tillage tools, traction devices, energy requirements, economics, surface and subsurface water quality effects, tillage effects on weed, pest and disease control, and their interactions.