Search results for " soil amendments"

showing 2 items of 2 documents

Microstructural and associated chemical changes during the composting of a high temperature biochar: Mechanisms for nitrate, phosphate and other nutr…

2018

Recent studies have demonstrated the importance of the nutrient status of biochar and soils prior to its inclusion in particular agricultural systems. Pre-treatment of nutrient-reactive biochar, where nutrients are loaded into pores and onto surfaces, gives improved yield outcomes compared to untreated biochar. In this study we have used a wide selection of spectroscopic and microscopic techniques to investigate the mechanisms of nutrient retention in a high temperature wood biochar, which had negative effects on Chenopodium quinoa above ground biomass yield when applied to the system without prior nutrient loading, but positive effects when applied after composting. We have compared non-co…

Environmental EngineeringSettore AGR/13 - Chimica AgrariaBiochar nutrient interactions; Composted biochar; Phosphorus and nitrogen capture; Soil amendmentsBiomasschemistry.chemical_element010501 environmental sciencesPhosphorus and nitrogen capturecomplex mixtures01 natural scienceschemistry.chemical_compoundNutrientNitrateBiocharEnvironmental ChemistryCharcoalWaste Management and Disposal0105 earth and related environmental sciences2. Zero hungerChemistryPhosphorusBiochar nutrient interaction04 agricultural and veterinary sciences15. Life on landSoil amendmentsPollutionSoil conditionerAgronomyEnvironmental chemistryvisual_artSoil water040103 agronomy & agriculturevisual_art.visual_art_medium0401 agriculture forestry and fisheriesComposted biocharScience of The Total Environment
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Different Type Clay Amendments for Lead Immobilization in Contaminated Soils

2014

Contamination with lead in soil is a crucial problem in industrial and military sites. Immobilization of lead by natural and modified clay as soil amendment can be an effective solution to this problem. Quaternary and Devonian clays were chosen for modification with NaCl, CaCl2, FeOOH and Ca10(PO4)6(OH)2 in different proportions of Ca/P equimolar ratio to test and compare immobilization efficiency of lead (II) on raw and modified clays by using a batch leaching test. The aim of the study is to compare different types of raw and modified clays as soil amendments by lead immobilization properties.

Soil conditionerContaminated soilsMaterials scienceIron oxyhydroxideEnvironmental chemistryClay modification hydroxyapatite immobilization iron oxyhydroxide soil amendmentsAmendmentSoil scienceLeaching (metallurgy)ContaminationEffective solutionMaterial Science and Applied Chemistry
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