Effects of solarization on the biological and chemical properties of a substrate

Q4 Agricultural and Biological Sciences

AgriScientia Pub Date : 2023-09-18 DOI:10.31047/1668.298x.v1.n40.40311

Ibrahim Ayoub, E. Bigatton, Mariela Archilla, E. Lucini, Carolina Vázquez, Valeria Moreno, Diego Ortiz

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引用次数: 0

Abstract

Greenhouse experiments and productions require a high-level control of pests and diseases. Nowadays, society demands to find sustainable alternatives to replace agrochemicals in food production. Solarization is one of the most promising tools due to its low installation cost and control efficiency. The objective of this study was to evaluate the effect of solarization on a substrate for a greenhouse experiment in Córdoba, Argentina. At the INTA-Manfredi Agricultural Experimental Station, 12 m3 of substrate underwent the solarization process, being exposed to solar radiation for six months (December 2021-May 2022). In addition, substrate control remained in natural conditions. Soil functional groups using different growth culture media were measured to verify the solarization effect. The solarized substrate showed a reduction in proteolytic microorganisms (90 %), mesophiles (93 %) and fungi (100 %). The ammonifiers and biological nitrogen fixers microorganisms were reduced by 78 % compared to the control treatment, while yeasts and Bacillus spp. showed reductions up to 64 % and 69 %, respectively. Solarization achieved a 99 % reduction of weeds. The pH decreased by 1.9 % and the electrical conductivity (EC) increased by 5.91 % in the solarized substrate. The total dissolved solids increased by 169 % for the solarized substrate.

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日晒对基质生物和化学特性的影响

温室实验和生产需要对病虫害进行高度控制。如今，社会要求找到可持续的替代品，以取代食品生产中的农用化学品。日光照射因其安装成本低、控制效率高而成为最有前途的工具之一。本研究旨在评估日晒对阿根廷科尔多瓦温室实验基质的影响。在 INTA-Manfredi 农业试验站，12 立方米的基质经历了日晒过程，在太阳辐射下暴露了 6 个月（2021 年 12 月至 2022 年 5 月）。此外，基质对照组仍处于自然条件下。为验证日晒效果，使用不同的生长培养基对土壤功能群进行了测量。日晒基质显示蛋白水解微生物（90%）、嗜中微生物（93%）和真菌（100%）减少。与对照处理相比，氨化微生物和生物固氮微生物减少了 78%，而酵母菌和芽孢杆菌则分别减少了 64% 和 69%。日晒可使杂草减少 99%。日晒基质的 pH 值降低了 1.9%，电导率（EC）增加了 5.91%。日晒基质的总溶解固体增加了 169%。

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

AgriScientia Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

0.30

自引率

0.00%

发文量

审稿时长

22 weeks

期刊介绍： AgriScientia es una revista de acceso abierto, de carácter científico-académico, gestionada por el Área de Difusión Científica de la Facultad de Ciencias Agropecuarias de la Universidad Nacional de Córdoba, Argentina. La revista recibe artículos en los idiomas español e inglés. El objetivo de esta publicación es la difusión de los resultados de investigaciones de carácter agronómico. Está destinada a investigadores, estudiantes de pregrado, grado y posgrado, profesionales en el área de las ciencias agropecuarias y público en general interesado en las temáticas relacionadas. Su periodicidad es semestral. Los artículos se reciben durante todo el año. Los tipos de documentos que se publican son artículos científicos, comunicaciones y revisiones.