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Agronomy
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Irrigation and Fertilizer Requirements of Crop Tillage Systems Under Future...
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Irrigation and Fertilizer Requirements of Crop Tillage Systems Under Future Climate Change Scenarios

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Innovative Cropping Systems".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 602

Special Issue Editors

Dr. Qinge Dong

E-Mail Website
Guest Editor
Institute of Soil and Water Conservation Chinese Academy of Sciences, Yangling, China
Interests: efficient use of water and fertilizer resources; soil water and salt regulation and simulation
Dr. Xuewen Gong

E-Mail Website
Guest Editor
School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
Interests: efficient use of water; evapotranspiration; crop water requirements; aerodynamic resistance; crop water quality response; water transport of SPAC system; regulate deficit irrigation; crop water deficit index; energy processes; balances of farmland
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water shortages and fertilizer pollution are important factors that affect agricultural production. In recent years, with the intensification of global climate change, the balance between water, fertilizer, and climate has become an important issue that must be considered by every agricultural producer. According to a report by the World Resources Institute and the Food and Agriculture Organization of the United Nations, 60% of irrigated agriculture is under extreme water stress on the global scale, 1.2 billion people in agricultural areas are at risk of water scarcity and acute water scarcity, and nearly 1.0 billion hectares of agricultural land are affected‌ by this. Consequently, improving irrigation water use efficiency has become the primary issue for ensuring national food security. The popularization and application of fertilizer is an important means to promote an increase in agricultural production; according to a research report by QYResearch, the worth of the global fertilizer market is estimated to soon reach USD 122.08 billion, and it is expected that, by 2030, it will be valued at USD 148.08 billion, with a compound annual growth rate (CAGR) of 4.28%. However, the overuse of fertilizers also brings great environmental pressures, such as soil degradation, water pollution, and greenhouse gas emissions. Climate change will lead to a series of problems, e.g.,‌ water scarcity and uneven distribution, increased soil water evaporation, changes in crop water requirements, and a decline in irrigation water quality‌. Therefore, the high-quality development of crop tillage systems urgently needs to realize the precise regulation of irrigation and fertilizer under future climate change scenarios. This Special Issue will cover a wide range of areas regarding the relationship of crops with irrigation, fertilizer, and climate change, with the aim of creating a favorable water–fertilizer environment for the optimization of crop tillage systems.

Dr. Qinge Dong
Dr. Xuewen Gong
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • agriculture
  • crop water requirement
  • crop yield and quality
  • evapotranspiration
  • fertilizer utilization efficiency
  • soil environment
  • water efficient use
  • water and fertilizer coupling
  • climate change

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Published Papers (1 paper)

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Research

17 pages, 1820 KiB  
Article
The Impact of Water Deficit at Various Growth Stages on Physiological Characteristics, Fruit Yield, and Quality of Drip-Irrigated Jujube Trees
by Wei Qiang, Pengrui Ai, Yingjie Ma and Jinghua Zhao
Agronomy 2025, 15(5), 1205; https://doi.org/10.3390/agronomy15051205 - 16 May 2025
Viewed by 164
Abstract
The long-term arid climate in Xinjiang poses a major challenge to sustainable jujube production. In this study, we systematically evaluated the impacts of deficit irrigation (DI) by comparing a full irrigation control (CK) with six DI treatments—mild DI (75% CK) and severe DI [...] Read more.
The long-term arid climate in Xinjiang poses a major challenge to sustainable jujube production. In this study, we systematically evaluated the impacts of deficit irrigation (DI) by comparing a full irrigation control (CK) with six DI treatments—mild DI (75% CK) and severe DI (50% CK) water deficits applied during either flowering + fruit setting or fruit enlargement stages. The key findings demonstrate that flowering + fruit setting DI effectively balances water conservation with productivity. Mild DI (75% CK) during flowering + fruit setting reduced irrigation by 72 mm while maintaining near-optimal photosynthesis (95% recovery post-rewatering) and significantly improving fruit quality (5.49–10.28% higher sugar content, 3.40–5.06% larger fruit volume), despite a moderate 4.22–11.36% yield reduction. In contrast, severe DI caused irreversible physiological stress (only 75% photosynthetic recovery), and fruit-enlargement-stage DI uniformly compromised both yield and fruit size. An economic analysis confirmed flowering + fruit setting mild DI as optimal, generating 17,139–20,550 RMB·ha−1 profit through enhanced water use efficiency (WUE) and premium-quality fruit production. PLS-PM validation revealed that targeted flowering + fruit setting water deficit suppresses vegetative overgrowth while optimizing source–sink relationships, achieving a 23–31% WUE improvement without sacrificing marketable yield. Thus, mild DI during flowering + fruit setting is a climate-smart irrigation strategy for Xinjiang’s jujube industry, resolving water scarcity challenges with economic viability. Full article
(This article belongs to the Special Issue Irrigation and Fertilizer Requirements of Crop Tillage Systems Under Future Climate Change Scenarios)
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