An Exploratory Research on the Adoption of Different Phosphate-Solubilizing Fungi for Production of Phosphate Biofertilizers

IF 2.2 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Geomicrobiology Journal Pub Date : 2023-04-08 DOI:10.1080/01490451.2023.2196288

Laleh Faridian, J. Baharlouei, Alireza Fallah Nosratabad, Hossein Kari Dolat Abad

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引用次数: 1

Abstract

Abstract Using the inherent capacity of the soil to meet the nutritional needs of plants is considered an efficient and environmentally friendly solution. In order to study the survival of different phosphate-solubilizing fungi in different combinations of rock phosphate and organic matter as the basis of biofertilizer with the aim of producing an effective formula of biological phosphorus granular fertilizer, this study was conducted as a factorial experiment based on a completely randomized design with three replications. For this purpose, after isolating phosphate-solubilizing fungal strains from agricultural soils in different regions of Iran (Fars, Kermanshah and Razavi Khorasan provinces), the superior strains with high growth stimulating capability were selected for bio-fertilizer formulation based on determination of fungi survival. In order to study the survival of the superior strains [including Talaromyces pinophilus strain 1FB, T. pinophilus strain MFA, Talaromyces verruculosus strain PF157-2 and Aspergillus tubingensis strain PF140-2], six levels of carrier including 100% rock phosphate, 80% rock phosphate + 20% organic matter, 60% rock phosphate + organic matter 40%, 40% rock phosphate + 60% organic matter, 20% rock phosphate + 80% organic matter and 10% rock phosphate + 90% organic matter were used in three temperature levels (28, 40 and 50 °C) during eight time periods (15 days, 30 days, 45 days, 60 days, 75 days, 90 days, 105 days and 120 days) under incubation condition. The results showed that based on the longer time of survival, and the instruction of Soil and Water Research Institute, Karaj, Iran, for the minimum acceptable number of phosphate solubilizing fungi in granulated phosphate microbial fertilizer, a granulated phosphate microbial fertilizer included each of the isolates (respectively PF 157-2 > PF 140-2 > MFA≫ 1FB), a carrier with at least 20% rock phosphate + at least 20% organic matter, and at the temperature of 28 or 40 °C may be developed and recommended in the agricultural soils as an environment-friendly source of phosphorus.

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采用不同溶磷菌生产磷酸盐生物肥料的探索性研究

摘要利用土壤的固有能力来满足植物的营养需求被认为是一种有效且环保的解决方案。为了研究不同溶磷真菌在作为生物肥料基础的岩石磷酸盐和有机物的不同组合中的存活率，以生产有效的生物磷颗粒肥料配方，本研究采用完全随机设计的析因实验，进行了三次重复。为此，在从伊朗不同地区（法尔斯省、克尔曼沙赫省和拉扎维呼罗珊省）的农业土壤中分离出溶磷真菌菌株后，根据真菌存活率的测定，选择了具有高生长刺激能力的优良菌株用于生物肥料配方。为了研究优良菌株[包括嗜酸乳杆菌1FB株、嗜酸乳杆菌MFA株、疣状Talaromyces PF157-2株和tubingensis曲霉菌PF140-2株]的存活率，采用六种水平的载体，包括100%磷酸岩、80%磷酸岩+20%有机物、60%磷酸岩 + 有机质40%、40%磷酸岩+60%有机质、20%磷酸岩+80%有机质和10%磷酸岩+90%有机质在三个温度水平（28、40和50 °C）天，30 天，45 天，60 天，75 天，90 天，105 天和120 天）。结果表明，基于较长的存活时间，并根据伊朗卡拉杰土壤和水研究所的指示，对于颗粒磷酸盐微生物肥料中溶磷真菌的最小可接受数量，颗粒磷酸盐微生物肥包括每个分离株（分别为PF 157-2 > PF 140-2 > MFÁ1FB），一种含有至少20%磷酸岩的载体 + 至少20%的有机物，并且在28或40的温度下可以在农业土壤中开发并推荐°C作为环境友好的磷源。

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来源期刊

Geomicrobiology Journal 环境科学-地球科学综合

CiteScore

4.80

自引率

8.70%

发文量

审稿时长

3.3 months

期刊介绍： Geomicrobiology Journal is a unified vehicle for research and review articles in geomicrobiology and microbial biogeochemistry. One or two special issues devoted to specific geomicrobiological topics are published each year. General articles deal with microbial transformations of geologically important minerals and elements, including those that occur in marine and freshwater environments, soils, mineral deposits and rock formations, and the environmental biogeochemical impact of these transformations. In this context, the functions of Bacteria and Archaea, yeasts, filamentous fungi, micro-algae, protists, and their viruses as geochemical agents are examined. Articles may stress the nature of specific geologically important microorganisms and their activities, or the environmental and geological consequences of geomicrobiological activity. The Journal covers an array of topics such as: microbial weathering; microbial roles in the formation and degradation of specific minerals; mineralization of organic matter; petroleum microbiology; subsurface microbiology; biofilm form and function, and other interfacial phenomena of geological importance; biogeochemical cycling of elements; isotopic fractionation; paleomicrobiology. Applied topics such as bioleaching microbiology, geomicrobiological prospecting, and groundwater pollution microbiology are addressed. New methods and techniques applied in geomicrobiological studies are also considered.