Evaluation of traditional methods for estimating lime requirement in Brazilian soils [PDF]
Revista Brasileira de Ciência do Solo, 2020 The optimal soil pH for most annual crops in Brazil varies between 5.7 and 6.0. Numerous methods have been developed for estimating lime requirement (LR), but they vary widely in their predictions and fail to raise pH to desired values for optimum crop ...
Welldy Gonçalves Teixeira +3 more
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Studies on neutralization of soil acidity caused by exchangeable Al³+: I. Effects on pH and exchangeable Al³+ and H+ [PDF]
, 1973 Ê descrito um ensaio de incubação com a finalidade de estudar os efeitos da adição de CaCO3 sobre o pH e Al³+ e H+ trocáveis de 4 terras, servindo-se do método do Al³+ trocàvel para a determinação das doses de CaCO3.
Mello, Francisco de A. F. de +2 more
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Acidity variables and exchangeable calcium and magnesium on an oxisol treated with phosphate alkaline biosolid [PDF]
, 2010 The alkaline biosolid enriched by phosphorus (P) can increase the soil extractable P4 and and exert further effects about soil acidity variables and exchangeable calcium and magnesium.
Koehler, Henrique Soares +2 more
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Acidity and Aluminum Speciation in Biochar Amended Tropical Soils [PDF]
, 2022 Soil acidification in the tropics has become a more pressing issue due to its associated aluminum (Al) phytotoxicity. The chemical reactive nature of biochar can alter Al speciation in soils.
Henriksen, Stephan Weck +5 more
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Agronomy, 2021 In Ultisols and Oxisols, potassium (K) in the soil solution is leached from the rhizosphere before it interacts with soil colloids, or exchanged with other cations at the exchange sites of the soils because of the abundance of kaolinite clay minerals ...
Puvan Paramisparam +5 more
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Dynamics of physicochemical indicators using various fertilization systems on sod-podzolic sandy loam soil and their Influence on Crop Productivity [PDF]
BIO Web of Conferences, 2022 As a result of the studies carried out by the Department of Chemistry, Agrochemistry and Agroecology to improve the physicochemical parameters of sod-podzolic soils in the conditions of the Pskov region, positive results were obtained.
Volodina Tamara +2 more
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Response of Eggplant to Integrated Approaches for Sustainable Reclamation and Improvement of a Cheringa Hot Spot of Acid Sulfate Soil [PDF]
, 2008 The application of basic slag (BS20 and BS30: basic slag 20 and 30 t ha-1) and aggregate size (A20 and A30: aggregate sizes of soil less than 20 and 20-30 mm) and different techniques (Tech 1: pyrite at top, jarosite at middle, and top soil at the bottom
Khan, Md. Harunor Rashid
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Cation Exchange Properties of Alginic Acid
Experimental Biology and Medicine, 1952 SummaryAlginic acid possesses sodium and potassium ion exchange properties which compare favorably with those of a carboxylic type cationic exchange resin. Under in vitro conditions alginic acid at pH 7.6 adsorbs 4.2 meq Na+ per g. The total cation adsorption from solutions containing K+ and Na+ is also 4.2 meq/g and the ratio of Na:K combined ...
B J, LUDWIG, W T, HOLFELD, F M, BERGER
openaire +2 more sources
Chemical dynamics of acidity and heavy metals in a mine water-polluted soil during decontamination using clean water [PDF]
, 2010 A column leaching experiment was conducted to investigate the chemical dynamics of the percolating water and washed soil during decontamination of an acidic mine water-polluted soil.
Lu, W. +6 more
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Identification of spectral indicators of soil erosion based on field spectrometry data (A case study of the Chuvash Republic) [PDF]
Известия Саратовского университета. Новая серия: Серия Науки о ЗемлеThe aim of the study is to identify relationships between the agrochemical indicators of the arable layer (humus content, mobile phosphorus, exchangeable potassium, and pH values of exchangeable acidity), field moisture, and spectral characteristics of ...
Iakimovich, Dmitrii Nikolaevich +3 more
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