Results 31 to 40 of about 2,324,089 (344)

Effect of Soil Acidity Amelioration on Soil Properties and Yield of French Bean (Phaseolus vulgaris L.) under Rainfed Condition in Arunachal Pradesh

open access: yesInternational Journal of Economic Plants, 2023
Under rainfed conditions yield potential of French bean reduced in the acid soil of Arunachal Pradesh due to low fertility and metal toxicity. Therefore, the current experiment was conducted in ICAR, Basar, Research Farm during rabi season (October ...
Ampee Tasung   +9 more
doaj   +1 more source

Evaluation of traditional methods for estimating lime requirement in Brazilian soils [PDF]

open access: yesRevista 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
doaj   +2 more sources

Changes in Soil pH and Exchangeable Acidity of Selected Parent Materials as Influenced by Amendments in South East of Nigeria

open access: yes, 2016
Soil chemical degradation caused by acidity is a serious constraint to food production in most parts of the Tropics. It was in the bid to proffer solution to this that the present study was conceived. Anincubation study was conducted at the laboratory of
M. Onwuka   +2 more
semanticscholar   +1 more source

Dynamics of physicochemical indicators using various fertilization systems on sod-podzolic sandy loam soil and their Influence on Crop Productivity [PDF]

open access: yesBIO 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
doaj   +1 more source

Land Clearing Effect on the Variability of some Soil Properties of an Alfisol in South-Western Nigeria [PDF]

open access: yesTropicultura, 2000
The variability of some soil properties of a mechanically cleared plot was compared with an adjacent plot under natural vegetation in an Alfisol of South-western Nigeria. The soil properties studied were pH, total N, available P, exchangeable acidity Ca,
Eneji, AE., Ayade, BB.
doaj  

Amending Potassic Fertilizer with Charcoal and Sago (Metroxylon sagu) Bark Ash to Improve Potassium Availability in a Tropical Acid Soil

open access: yesAgronomy, 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
doaj   +1 more source

Effects of acid rain on competitive releases of Cd, Cu, and Zn from two natural soils and two contaminated soils in hunan, China [PDF]

open access: yes, 2007
Leaching experiments of rebuilt soil columns with two simulated acid rain solutions (pH 4.6– 3.8) were conducted for two natural soils and two artificial contaminated soils from Hunan, southcentralChina, to study effects of acid rain on competitive ...
Guo, Zhao-hui   +4 more
core   +3 more sources

Cation Exchange Properties of Alginic Acid

open access: yesExperimental 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

The Exchangeability of Amino Acids in Proteins [PDF]

open access: yesGenetics, 2005
Abstract The comparative analysis of protein sequences depends crucially on measures of amino acid similarity or distance. Many such measures exist, yet it is not known how well these measures reflect the operational exchangeability of amino acids in proteins, since most are derived by methods that confound a variety of effects ...
Yampolsky, Lev Y., Stoltzfus, Arlin
openaire   +3 more sources

Extent, Distribution, and Causes of Soil Acidity under Subsistence Farming System and Lime Recommendation: The Case in Wolaita, Southern Ethiopia

open access: yesApplied and Environmental Soil Science, 2021
Soil acidity is one of the most important environmental threats to the Ethiopian highlands where the livelihood of the majority of people is reliant on agriculture.
Fanuel Laekemariam, Kibebew Kibret
doaj   +1 more source

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