Search results for " soil microbial biomass"

showing 3 items of 3 documents

Wastewaters from citrus processing industry as natural biostimulants for soil microbial community

2020

Abstract Citrus fruit processing wastewaters (CWWs), being rich in organic matter, may be a valuable resource for agricultural irrigation and, possibly, for the improvement of soil organic carbon (TOC). This issue is becoming crucial for soils of arid and semiarid environments increasingly experiencing water scarcity and continuous decline of TOC towards levels insufficient to sustain crop production. However, before using CWWs in agriculture their effects on the soil living component have to be clarified. Therefore, in this study we assessed the impact of CWWs on soil chemical and biochemical properties. Under laboratory conditions, lemon, orange and tangerine wastewaters were separately a…

CitrusEnvironmental EngineeringNitrogenMicroorganismSoil acidification0208 environmental biotechnology02 engineering and technologyWastewater010501 environmental sciencesManagement Monitoring Policy and Lawcomplex mixtures01 natural sciencesSoilSoil pHOrganic matterBiomassWaste Management and DisposalSoil Microbiology0105 earth and related environmental scienceschemistry.chemical_classificationCitrus wastewaters Soil microbial biomass and activity Phospholipid fatty acids Metabolic quotient Microbial quotientMicrobiotaAgricultureGeneral MedicineSoil carbonCarbon020801 environmental engineeringAgronomychemistryMicrobial population biologySoil waterSoil fertilitySettore AGR/16 - Microbiologia Agraria
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From wastes to resources: citrus hydrolatesas natural biostimulants of soil microorganisms

The hydrolates result from the industrial extraction process of the essential oils through cold pressing of the citrus peels. Today, they are considered a waste to be disposed of. However, due to the presence of water soluble compounds (sugars, polyphenols, acids), hydrolates could be reused instead of being, due to the high economic burden, a problem in the disposal of the same, charged to the company.The aim of this work was to evaluate the effects of citrus hydrolate when directly applied as irrigation water on soil microbial biomass, activity and structure community. The soil used for the experiment was collected from the topsoil (0-10 cm) of a citrus orchard, air-dried and sieved at 2 …

Settore AGR/13 - Chimica Agrariacitrus hydrolatesas biostimulants waste water soil microbial biomass
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Soil Quality as Affected by Intensive Versus Conservative Agricultural Managements

2017

Soils, the earth’s skin, are at the intersection of the lithosphere, hydrosphere, atmosphere, and biosphere. The persistence of life on our planet depends on the maintenance of soils as they constitute the biological engines of earth. Human population has increased exponentially in recent decades, along with the demand for food, materials, and energy, which have caused a shift from low-yield and subsistence agriculture to a more productive, high-cost, and intensive agriculture. However, soils are very fragile ecosystems and require centuries for their development, thus within the human timescale they are not renewable resources. Modern and intensive agriculture implies serious concern about…

Soil managementNo-till farmingConservation agriculture conventional agriculture tillage mulching cover crops rotation mineral fertilization manure soil organic matter soil microbial biomassAgricultural soil scienceAgroforestrySoil biodiversitySoil organic matterSettore AGR/13 - Chimica AgrariaEnvironmental scienceSoil fertilitySoil conservationcomplex mixturesSoil quality
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