Professor Dr Akram Othman Esmail

• Professor of Soil chemistry (PhD)
• Professor at Salahaddin University-Erbil

This study was carried out in Erbil governorate, Iraq during 2020 to estimate the regression relations between the ionic strength of 354 water samples and their electrical conductivity then influence of correcting ion pairs and activity on this relation. Results indicated that electrical conductivity regards as an accurate measure of ionic strength...

This study was conducted during 2020, The water samples were taken on June and October,2020 which were represent wet and dry season respectively from 22 springs in Erbil governorate. Some water chemical properties and heavy metals were determined at both wet and dry season, the studied spring waters were classified according to some systems or meth...

A pot experiment was carried out during autumn growing season of 2016-2017 at the Gerdarasha field of College of Agriculture Engineering Sciences, to study the effect of three dominant soil orders (Mollisols (M), Vertisols (V) and Aridisols (A)), five levelsof applied triple super phosphate (TSP) fertilizer (0, 80, 160, 240 and 320 kg TSP ha-1) and...

This investigation was conducted during January, 2018 to April, 2019 to investigate the role of correcting ion pairs and activity in decreasing the risk of saline water for irrigation. The groundwater of (31) wells in Makhmur district were depended in this study .The results indicated that amount of ions contributing in ion pairing was ranged betwe...

This study was conducted to compare between two methods of soil organic matter determination for main soil orders in Kurdistan region/Iraq, for this purpose forty-five soil samples were taken then the organic matter was determined using chemical (Walkley-Black (wet) method and loss-on-ignition method (dry) combustion method. The results indicated t...

A pot experiment was carried out during autumn growing season of 2016-2017 at the Gerdarasha field of College of Agriculture Engineering Sciences, to study the effect of three dominant soil orders (Mollisols (M), Vertisols (V) and Aridisols (A)), five levels of applied phosphorus fertilizer (0, 80, 160, 240 and 320 kg TSP ha-1) and combination betw...

This experiment was conducted from 1/7/2016 to 20/12/2018 to study the mineralogical properties of oak forest at 12 locations (Gara, Matin and Brifca) from Dohuk governorate, (Bilah, Malakan and Awagrd) from Hawler Governorate, (Bardanga, Badawan and Chwarta) from Sulaimani Governorate, and (Bakhakon, Hawar and Sartak) from Halabja governorate in I...

This study was conducted during 1/7/2016 to 20/12/2018, which aimed to determine chemical and mineralogical properties of oak forest and non-cultivated soils at 6 locations in Iraqi Kurdistan region, the samples were collected from two depths (0-30) and (30-60) cm. The study included some chemical and physical properties and identification of clay...

Abstract— This study was conducted in Rania district, Raparin University during September, 2018 to March, 2019 to test the relation between water hardness and kidney stone formation. The investigation depended on questionnaire form which were distributed on 100 person in Raparin ( Rania ,Hajiawa and Chwarqurna ) and patients whom vested the Rania c...

This investigation was carried out during October 2016 to February 2017 at Grdarasha field ,College of Agriculture University of Salahaddin ,Erbil to study the effect of 5 water levels of triple super phosphate (TSP) (0,50,100,150 and 200 kg ha-1) and two levels of KCl (0,150 kg ha-1) which equivalent to (0 ,11.25,22.5, 33.75 and 45 g TSP plot-1),...

ABSTRACT This investigation was carried out during October 2016 to February 2017 at Grdarasha field ,College of Agriculture University of Salahaddin ,Erbil to study the effect of 5 water levels of triple super phosphate (TSP ) (0,50,100,150 and 200 kg ha-1) and two levels of KCl (0,150 kg ha-1) which equivalent to (0 ,11.25,22.5, 33.75 and 45 g TSP...

Article info Abstract Original: Revised: Accepted: Published online: The study was conducted during growing season of 2016, to study the effect of five water qualities (W) having the same electrical conductivity but differing in chemical composition (one of them natural water the others are artificial) and three levels of phosphorus fertilizer...

Limiting potassium critical level for Betwain plain soils and wheat plant. Abstract Shwana Abdlla Khdir Akram Othman Esmail Arez96y@yahoo.com This study was conducted during August 2015 to June 2016, which included studying potassium critical level for the soils of Betwain area and wheat plant depending on some physicochemical properties of the soi...

Determining the main physicochemical properties of Betwain (Rania ) plain soils Akram Othman Esmail Shwana Abdlla Khdir Abstract This study was conducted during Auust 2015 to June 2016, which included studying some physicochemical properties of the soils of 14 locations at Bewain plain. The main results were summarized as follow:The range of solub...

ABSTRACT: This study was carried out during growing season of 2014 on 18 years old grapevine cv. Tri-rash at a private vineyard located near Shar-Bazher town, Sulaimani governorate, Iraq in order to study the foliar spraying of three concentrations (0, 0.2 and 0.4%) of magnesium, number of sprays and their interactions on yield and quality of grape...

ABSTRACT A laboratory study was conducted to determine the effect chemical composition of irrigation water on potassium desorption kinetics in some calcareous soils. It was constructed by miscible displacement technique with soil columns using three water quality from (Chakhmera, Chilhaweza and Makhmur) via three different textured soils from Shawe...

ABSTRACT The chemical analysis of 48 wells in Erbil plain, Kurdistan region , Iraq were done from July, 2013 to June 2014, in order to classify them before and after correcting (ion pairs and ion pairs+activity). The main results were summarized as follow: Depending on Scofield,s classification (1935) only water of 10 wells located within harmful...

ABSTRACT This study was conducted during 25/12/2013 to 20/5/2014 to study the effect of 15 water qualities (IWQI) on soil chemical properties, growth , yield and nutrient content of wheat, using Completely Randomized Design (CRD) with 4 replicates. The main results can be summarized as follow: The electrical conductivity of the soil extract increas...

1-Akram Othman Esmail 2- Shawkat Mostafa Atrushi 3- Shayan Akram

The paper aims to go into the impact of some heavy metal contamination in the Sulaimani province groundwater for irrigation purpose. Water samples were collected from (36) locations in the study area that not the same and the heavy metals such as(Iron, Zinc, Copper and Manganese) were finding out by using Atomic Absorption Spectrophotometer. Heavy...

This study was conducted during the hydrological year of 2013, which included seasonal water chemical analysis for 53 wells in Erbil plain,classification and a pot experiment to study the effect of 15 water qualities on soil and wheat plant. Depending on Richards's classification (1954) the water for 30 wells located within (C 3 S 1) class, while t...

The paper aims to go into the impact of some heavy metal contamination in the Sulaimani province groundwater for irrigation purpose. Water samples were collected from (36) locations in the study area that not the same and the heavy metals such as (Iron, Zinc, Copper and Manganese) were finding out by using Atomic Absorption Spectrophotometer. Heavy...

This study was conducted during the growing season of 2012-2013 from 1st December ,2012 to 26th of May, 2013 to study the effect of three levels of phosphorus(0, 50 and 100 kg TSP ha-1 and the three levels of Cheated iron (0, 4 and 8 kg Fe-EDDHA ha-1) and their combinations on growth characters ,yield and quality of flax using split plot design wit...

This research was conducted during (June 2009 to September -2010) to study the K- kinetics’ adsorption- desorption phenomena in predominant soil orders (Mollisols, Entisols, Vertisols, Aridisols, and Inceptisols) of Kurdistan region- Iraq, Soil samples were taken from sixteen different locations at depth (0 – 30 cm) selected according to the variat...

This study was carried to evaluate the response of four soybean, Glycine max (L.) Merrill, varieties: Century-84 (MG II), NARC-2 (MG II), Willams-82 (MG III), and Hutcheson (MG V) to three planting dates (May 7 th , May 22 nd , and June 7 th) and three rate of phosphorus fertilization (0, 60, and 120 Kg P 2 O 5 .ha-1) during the growing season (200...

This study was conducted to investigate the effects of ion pairs and ion activity on classification of groundwater. The study included chemical analyses of water of (38) wells, according to Richards (US) classification (1954) the water of (18) wells having C2S1 class, water of (16) wells having C3S1 class and the water of (4) wells were not suitabl...

The factorial experiment was conducted during autumn season 2009, from 10th July to 29th September to study effect of three Fe-chelate compounds and two types of tea residue (consumed and non consumed tea) each of them with 5 levels which equivalent (0, 2.5, 5, 7.5 and 10 mg Fe Kg-1 soil) and their interactions on growth, iron and chlorophyll conce...

Eleven soil samples were randomly collected under the landfill area, which located between Bnaslawa district and Daratoo County at Arbil city during June (2011).Ten of samples were polluted and one sample of them was outside of the landfill as a control sample. The study location has a total area of (25) donnums = (62500 m2). The samples were taken...

This study was conducted during 2008-2009 ,which included calcium carbonate determination from 84 locations (40 soil samples from Erbil, 24 samples from Sulaimani and Kirkuk in addition to 20 samples from Duhok) using calimetric and titration method. The results indicated to significance correlation coefficient between the studied methods or it mea...

This study was conducted during the growing season of 2008, to investigate the effect of 3 levels of phosphorus and 3methods of application adding the phosphorus to the soil(S), foliar application of phosphorus (F), and ½ of P added to the soil and the other half of P added by foliar application (FS) on the growth, yield and quality of broad bean....

The study included the comparison between solubility diagram method and DRIS-chart method in studying phosphorus availability and status in calcareous soil .The results refers to record the similar results in both methods, in both methods the best treatment for recording the highest wheat yield and phosphorus availability was application of 90 kg P...

A pot experiment was carried out to study the role of chemical composition of water, soil texture and their interaction on soil chemical properties and growth of corn plant, at Grdarasha Field, College of Agriculture, University of Salahaddin, Erbil. The results indicated to increase in electrical conductivity of the soil extract after harvest incr...

This investigation was carried out during October 2009 to July 2010 to study the role ion pairs and activity in classification and suitability of water of 36 locations in Sulaimani Governorate ,Iraq,Kurdstan Region which includes (23) wells, (7) springs and (6) kahrezes. The studied waters were classified before and after correcting ion pairs and a...

The study was conducted during the growing season 2003 to study the influence of four levels of P (0, 60, 100 and 140 kg ha-1) and four levels of Mg (0, 40, 80 and 120 kg ha-1) at two locations (Bakrajow and Kalar) on growth and yield of wheat and phosphorus fertilizer efficiency. The results indicated to the response of wheat to phosphorous fertil...

Five levels of Zn-EDTA fertilizer and foliar application of boron were used to study the local rice response through studying of some vegetative and reproductive growth characters, by conducting two field experiments at Kanipanka Agricultural Research Station during the summer season of 2004 by using RCBD with three replications. Significant differ...