Spent Pleurotus substrate as organic fertilizer to improve yield and soil fertility: the case of baby leaf lettuce production.

IF 3.3 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of the Science of Food and Agriculture Pub Date : 2025-05-28 DOI:10.1002/jsfa.14303

Marina De Bonis, Paolo Sambo, Giampaolo Zanin, Mariateresa Cardarelli, Carlo Nicoletto

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引用次数: 0

Abstract

Background: Spent mushrooms substrate is the most important waste generated by edible mushrooms industry and can be re-used as organic fertilizer, following sustainable production principles. In the present study, Spent Pleurotus substrate (SPS) was used for organic fertilization of baby leaf production during two consecutive cycles (1st: October to December; 2nd: December to March) using two variety of lettuce (Doge and Imperiale). Different amounts of SPS in a mix with chemical fertilizers were applied: 100% SPS to fulfil the N needs of the crop and 50% of mineral N (T100 + 50), 200% SPS to fulfil the double N needs (T200) and 200% SPS to fulfil the N needs of the crop and 50% of mineral N (T200 + 50). SPS treatments were compared with an unfertilized control (T0) and chemical fertilization treatments. The crops coverage, Soil Plant Analysis Development index (i.e. SPAD) and yield were monitored during each cycle and soil samples were analysed to observe the effect of SPS on soil fertility.

Results: Among SPS treatments, T100 + 50, which combined 50% mineral fertilization with SPS, yielded the best productive results among SPS treatments. This combination improved nutrient availability, whereas higher SPS concentrations (T200, T200 + 50) reduced yields due to nitrogen immobilization. The high initial soil nitrogen content limited significant changes in soil nitrogen, but SPS improved soil organic matter, active carbon and enzyme activity, enhancing microbial activity. Among the two lettuce varieties a difference in nitrogen uptake and utilization was observed.

Conclusion: Overall, the study highlights the potential of raw SPS as a sustainable organic fertilizer for baby leaf cultivation. Incorporating SPS alongside half of the crop's mineral nitrogen requirement offers a promising alternative to conventional mineral fertilization. After just two crop cycles, this approach maintains a good yield at the same time as enhancing soil organic matter and enzymatic activity, ultimately improving soil fertility. © 2025 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

查看原文本刊更多论文

废侧耳菇基质作为有机肥提高产量和土壤肥力：以幼叶莴苣生产为例。

背景：食用菌废渣是食用菌产业产生的最重要的废弃物，可作为有机肥再利用，遵循可持续生产原则。在本研究中，利用废侧耳底物（SPS）连续两个周期(1:10 ~ 12月；第2期：12月至次年3月)，使用两种不同品种的生菜（总督生菜和帝国生菜）。施用不同量的SPS与化肥混合施用：100% SPS满足作物对氮的需求和50%的矿质氮（T100 + 50）， 200% SPS满足双氮需求（T200）和200% SPS满足作物对氮的需求和50%的矿质氮（T200 + 50）。SPS处理与未施肥对照（T0）和化学施肥处理进行比较。在每个周期监测作物盖度、土壤植物分析发育指数（SPAD）和产量，分析土壤样品，观察SPS对土壤肥力的影响。结果：在SPS处理中，50%矿质肥与SPS配施T100 + 50处理的产量最好。该组合提高了养分利用率，而较高的SPS浓度（T200, T200 + 50）由于氮固定而降低了产量。高初始土壤氮含量限制了土壤氮的显著变化，但SPS改善了土壤有机质、活性碳和酶活性，增强了微生物活性。两个生菜品种在氮素吸收和利用方面存在差异。结论：总体而言，本研究突出了生SPS作为幼叶栽培可持续有机肥的潜力。将SPS与作物所需矿物氮的一半结合起来，为传统矿物施肥提供了一个有希望的替代方案。只需两个作物周期，这种方法就能在提高土壤有机质和酶活性的同时保持良好的产量，最终提高土壤肥力。©2025作者。约翰威利父子有限公司代表化学工业协会出版的《食品与农业科学杂志》。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

期刊介绍： The Journal of the Science of Food and Agriculture publishes peer-reviewed original research, reviews, mini-reviews, perspectives and spotlights in these areas, with particular emphasis on interdisciplinary studies at the agriculture/ food interface. Published for SCI by John Wiley & Sons Ltd. SCI (Society of Chemical Industry) is a unique international forum where science meets business on independent, impartial ground. Anyone can join and current Members include consumers, business people, environmentalists, industrialists, farmers, and researchers. The Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, materials, chemicals, environmental science and safety. As well as organising educational events, SCI awards a number of prestigious honours and scholarships each year, publishes peer-reviewed journals, and provides Members with news from their sectors in the respected magazine, Chemistry & Industry . Originally established in London in 1881 and in New York in 1894, SCI is a registered charity with Members in over 70 countries.