Chemical, biological and respirometry properties of soil under perennial crops fertilized with digestate

IF 2 4区农林科学 Q2 AGRONOMY

International Agrophysics Pub Date : 2023-03-01 DOI:10.31545/intagr/158897

W. Radawiec, J. Gołaszewski, B. Kalisz, S. Przemieniecki

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引用次数: 1

Abstract

. The aim of this study was to evaluate the effect of thea digestate which originated fromon a widely cul - tivated perennial crop ( Miscanthus giganteus ). Cchanges in the physicochemical properties of the soil, the abundance of soil microorganisms, and soil respiration were all assessed. Three types of digestate: fresh in the liquid form, processed – dried and pyrolysed, were tested and compared with mineral fertilization and an unfertilized control. Soil samples were taken in spring 2014, summer 2015 and autumn 2016. In total, 14 variables were analysed: total carbon, hot water extractable carbon, total nitrogen, C/N ratio, phosphorus, magnesium, potassium, pH, bacteria, fungi, O 2 intake, CO 2 emission, total carbon mineralized after 7- and 100-day-long respiration. Overall, regardless of the form of the digestate, the chemical parameters of the soil improved, although the extent of the improvement depended on the applied form of the digestate. The highest TC 12.79, N 1.29, K 257.95 and P 149.96 g kg –1 DM were determined in the plots fertilized with biochar. All digestate forms had a positive influence on the bacte - rial DNA abundance, and biochar also affected the abundance of the fungal DNA and the potential carbon sequestration in the soil. Pyrolysed digestate may have a particular value in the fertilization of perennial industrial crops.

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施用消化物的多年生作物土壤的化学、生物和呼吸特性

．本研究的目的是评价源自广泛种植的多年生作物芒草(Miscanthus giganteus)的消化液的效果。评估了土壤理化性质、土壤微生物丰度和土壤呼吸的变化。对三种类型的消化液进行了测试，并与矿物施肥和未施肥的对照进行了比较。土壤样品分别于2014年春季、2015年夏季和2016年秋季采集。总共分析了14个变量:总碳、热水可提取碳、总氮、C/N比、磷、镁、钾、pH、细菌、真菌、O摄入量、CO 2排放量、7天和100天呼吸后矿化的总碳。总的来说，不管消化剂的形式如何，土壤的化学参数都有所改善，尽管改善的程度取决于消化剂的应用形式。生物炭处理的ct12.79、N 1.29、K 257.95和P 149.96 g kg -1 DM最高。所有消化形式都对细菌DNA丰度有积极影响，生物炭也影响真菌DNA丰度和土壤中潜在的碳固存。热解消化物在多年生工业作物的施肥中可能具有特殊的价值。

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

International Agrophysics 农林科学-农艺学

CiteScore

3.60

自引率

9.10%

发文量

审稿时长

3 months

期刊介绍： The journal is focused on the soil-plant-atmosphere system. The journal publishes original research and review papers on any subject regarding soil, plant and atmosphere and the interface in between. Manuscripts on postharvest processing and quality of crops are also welcomed. Particularly the journal is focused on the following areas: implications of agricultural land use, soil management and climate change on production of biomass and renewable energy, soil structure, cycling of carbon, water, heat and nutrients, biota, greenhouse gases and environment, soil-plant-atmosphere continuum and ways of its regulation to increase efficiency of water, energy and chemicals in agriculture, postharvest management and processing of agricultural and horticultural products in relation to food quality and safety, mathematical modeling of physical processes affecting environment quality, plant production and postharvest processing, advances in sensors and communication devices to measure and collect information about physical conditions in agricultural and natural environments. Papers accepted in the International Agrophysics should reveal substantial novelty and include thoughtful physical, biological and chemical interpretation and accurate description of the methods used. All manuscripts are initially checked on topic suitability and linguistic quality.