نتایج جستجو برای: sodium adsorption ration sar

تعداد نتایج: 261995  

Journal: :caspian journal of environmental sciences 2014
f. karandish a. shahnazari

the present study was carried out to evaluate three interpolation methods including weighted moving average (wma) with the power of 2 and 3, kriging and cokriging methods. data of 23 wells in mazandaran province were collected in fall and spring 2006. seven parameters including electrical conductivity (ec), ph, total dissolved solids (tds), sodium adsorption ratio (sar), total hardness (th), ch...

Journal: :IOP conference series 2023

Abstract The study’s goal is to analyze the suitability of sub-surface water Una district for drinking and agriculture purposes. data related physico-chemical parameters groundwater was obtained from Central Groundwater Board’s website compared BIS standard (10500:2012). values Ca 2+ , Cl − F SO 4 2- were found be below acceptable limit. pH, TDS, Alkalinity, Mg TH, NO 3 had that above limit at ...

2017
M. T. Sattari M. Pal R. Mirabbasi J. Abraham

In this paper, we report the results of four ensemble approaches with the M5 model tree as the base regression model to anticipate Sodium Adsorption Ratio (SAR). The ensemble methods that combine the output of multiple regression models have been found to be more accurate than any of the individual models making up the ensemble. In this work, the additive boosting, bagging, rotation forest, and...

Journal: Pollution 2016

Batiaghata Upazila, Khulna District in south-west coastal region of Bangladesh is the mostly saline affected area, where agriculture activities are mainly dependent on rainfall. 23 water samples from surface water and shallow tube well (STW) were collected in the monsoon season and analyzed for physico-chemical properties to classify them according to salinity hazard. Electrical Conductivity (E...

2011
Fan Yang Guangxin Zhang Xiongrui Yin Zhijun Liu

The objectives of this study were to investigate the degree of spatial variability and variance structure of salinization parameters using classical and geostatistical method in Songnen Plain of China, which is one of largest saline-sodic areas in the World, and to analyze the relationship between salinization parameters, including soil salinity content (SC), electrical conductivity (EC), sodiu...

Journal: :Archives of animal nutrition 2007
Annabelle Troegeler-Meynadier Marie-Claude Nicot Francis Enjalbert

The effects of fat source (0.7 kg of fatty acids from extruded soybeans or palmitic acid), of sodium bicarbonate (0.3 kg) plus straw (1 kg) and the interaction of these treatments on the content of conjugated linoleic acid (CLA) in the milk of dairy cows were examined. During nine weeks a group of 10 cows received a ration with palmitic acid and bicarbonate plus straw (ration PAB). During three...

ژورنال: علوم آب و خاک 2021

The present study was intended to improve the chemical properties of a saline-sodic soil using the individual application of alfalfa residue and two biochars produced from sugarcane bagasse and walnut shell, at the weighting ratio of 5%; their concomitant application with gypsum, aluminum sulfate and the mixture of these two chemical amendments was considered. The experiment was conducted in th...

ژورنال: مجله علمی پژوهان 2018
حاتمی, طیبه, روشنایی, قدرت اله, شکوهی, رضا, نادعلی, اعظم,

Background and Objective: Due to increasing the water demand and the lack of its resources, the reuse of effluents is considered as a useful option in the water resources management. The aim of this study was to evaluate the possibility of the reuse of effluents from the extended aeration process in the wastewater treatment plant of the Bojnoord city for agricultural uses. Materials and Method...

Journal: :International Journal of Advances in Applied Sciences 2021

<p>Groundwater is a vital source of irrigation and domestic purposes in Bangladesh, hence, it must satisfy the water quality guidelines. The study has selected eleven (11) Districts Bangladesh collect secondary data regarding groundwater. Several indices, such as soluble sodium percentage (SSP), adsorption ratio (SAR), magnesium (MAR), residual carbonate (RSC), Kelly’s (KR), permeability ...

Journal: :Environmental science. Processes & impacts 2014
K J Reddy Ashley J Whitman Andrew R Kniss

The CBNG well water is typically managed by discharging into nearby disposal ponds. The CBNG well water could potentially be very useful in the water-limited regions (e.g., arid and semi-arid), but beneficial uses may be hindered by water quality problems. Objectives of this research were to: (1) examine trend analysis of nine years of CBNG well water at discharge (outfall) points and in corres...

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