Optimization of Water and Nitrogen Application Rates for Synergistic Improvement of Yield and Quality in Solar Greenhouse Cucumber Production on the North China Plain
文献类型: 外文期刊
作者: Chunting Wang;Xiaoman Qiang;Kai Wang;Huanhuan Li;Xianbo Zhang;Shengxing Liu;Xuewen Gong
作者机构:
关键词: Cucumis sativusL;quality;water–nitrogen use fertilizer;yield;yield–quality synergy
期刊名称: Plants
ISSN: 2223-7747
年卷期: 2025 年 14 卷 9 期
页码:
收录情况: SCIE(2025版)
摘要: To address the scientific challenges of low water–fertilizer use efficiency and the difficulty in achieving the synergistic improvement of the yield and quality in solar greenhouse cucumber production on the North China Plain, this study investigated the effects of varying water and nitrogen supplies on cucumber growth, yields, water–nitrogen use efficiency, and quality. The aim was to establish optimized water and nitrogen management strategies for high-yield, high-quality, and resource-efficient cultivation. A two-factor completely randomized design was implemented, with three irrigation levels (W1: (Formula presented.), W2: (Formula presented.), and W3: (Formula presented.)) based on cumulative pan evaporation and four nitrogen application amounts (N1: 432 kg·ha−1, N2: 360 kg·ha−1, N3: 288 kg·ha−1, N4: 216 kg·ha−1). Cucumber growth indicators were observed during the growing season, and the water and nitrogen application rates were scientifically optimized. The results showed that a full water and nitrogen supply enhanced the leaf area index, dry weight accumulation, and yield. Moderate water and nitrogen savings had a minimal impact on plant growth and production while significantly improving the water and fertilizer use efficiency. Using principal component analysis to comprehensively evaluate the cucumber quality, it was found that the irrigation amount had a significant impact on quality, with the quality improving as the irrigation amount decreased. By employing a regression formula and spatial analysis methods, this study optimized the water and nitrogen application rates with the goals of maximizing the cucumber yield, water–nitrogen efficiency, and quality. For spring cucumbers, the recommended combination is an irrigation amount of 225~240 mm and a nitrogen application amount of 350~380 kg·ha−1. For autumn cucumbers, the recommended combination is an irrigation amount of 105~120 mm and a nitrogen application amount of 375~400 kg·ha−1. This research provides theoretical and technical support for high-yield, high-quality, and efficient irrigation and nitrogen management in solar greenhouses in the North China Plain.
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