首页|Combining slow-release fertilizer and plastic film mulching reduced the carbon footprint and enhanced maize yield on the Loess Plateau

Combining slow-release fertilizer and plastic film mulching reduced the carbon footprint and enhanced maize yield on the Loess Plateau

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Combining slow-release fertilizer and plastic film mulching reduced the carbon footprint and enhanced maize yield on the Loess Plateau
Agricultural practices significantly contribute to greenhouse gas(GHG)emissions,necessi-tating cleaner production technologies to reduce environmental pressure and achieve sus-tainable maize production.Plastic film mulching is commonly used in the Loess Plateau region.Incorporating slow-release fertilizers as a replacement for urea within this prac-tice can reduce nitrogen losses and enhance crop productivity.Combining these techniques represents a novel agricultural approach in semi-arid areas.However,the impact of this in-tegration on soil carbon storage(SOCs),carbon footprint(CF),and economic benefits has re-ceived limited research attention.Therefore,we conducted an eight-year study(2015-2022)in the semi-arid northwestern region to quantify the effects of four treatments[urea sup-plied without plastic film mulching(CK-U),slow-release fertilizer supplied without plastic film mulching(CK-S),urea supplied with plastic film mulching(PM-U),and slow-release fertilizer supplied with plastic film mulching(PM-S)]on soil fertility,economic and envi-ronmental benefits.The results revealed that nitrogen fertilizer was the primary contribu-tor to total GHG emissions(≥71.97％).Compared to other treatments,PM-S increased aver-age grain yield by 12.01％-37.89％,water use efficiency by 9.19％-23.33％,nitrogen accumu-lation by 27.07％-66.19％,and net return by 6.21％-29.57％.Furthermore,PM-S decreased CF by 12.87％-44.31％and CF per net return by 14.25％-41.16％.After eight years,PM-S increased SOCs(0-40 cm)by 2.46％,while PM-U decreased it by 7.09％.These findings highlight the positive effects of PM-S on surface soil fertility,economic gains,and environmental benefits in spring maize production on the Loess Plateau,underscoring its potential for widespread adoption and application.

Plastic film mulchingSlow-release fertilizerMaize grain yieldCarbon footprintEconomic benefits

Xiaoqing Han、Pengfei Dang、Lechen Liao、Fangqi Song、Miaomiao Zhang、Maoxue Zhang、Guoqing Li、Shuyue Wen、Ning Yang、Xiping Pan、Xiaofan Wang、Wen Wang、Xiaoliang Qin、Charles O.Joseph、Kadambot H.M.Siddique

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College of Agronomy,Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau,Northwest A&F University,Yangling,Shaanxi 712100,China

Department of Crop Sciences and Beekeeping Technology College of Agricultural Sciences and Food Technology,University of Dar es Salaam,Mwalimu Julius Nyerere Mlimani Campus,P.O.Box 35091,Dar es Salaam,Tanzania

College of Life Science,Yulin University,Chongwen Road No.4,Yulin,Shaanxi,719000,China

The UWA Institute of Agriculture and School of Agriculture & Environment,The University of Western Australia,Perth WA 6001,Australia

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Plastic film mulching Slow-release fertilizer Maize grain yield Carbon footprint Economic benefits

2025

10.1016/j.jes.2023.12.001

环境科学学报(英文版)
中科院生态环境研究中心

环境科学学报(英文版)

影响因子：0.862
ISSN：1001-0742
年,卷(期)：2025.147(1)