Volume 38 (2024)
Volume 37 (2023)
Volume 36 (2022)
Volume 35 (2021)
Volume 34 (2020)
Volume 33 (2019)
Volume 32 (2018)
Volume 30 (2016)
Volume 29 (2015)
Volume 28 (2014)
Volume 27 (2013)
Volume 26 (2012)
Volume 25 (2011)
Volume 24 (2010)
Volume 23 (2009)
Volume 22 (2008)
Research Article
Effect of Biochar Types and Rates on Some Soil properties and Nutrients Availability in a Calcareous Soil

N. Moradi; M.H. Rasouli-Sadaghiani; E. Sepehr

Volume 31, Issue 4 , September and October 2018, Pages 1232-1246


  Introduction: Biochar is a material produced from organic matters under high temperature and low oxygen conditions. In recent years, scientific attention has been focused on its effects on soil amendment and ecological restoration.Due to its properties related to surface area and porosity, bulk density, ...  Read More

Research Article
Experimental Investigation Anisotropy Permeability of Uniform Coarse Grain Soils

F. Pishro; M. Bakhtiari; N. Shahnikaramzadeh

Volume 31, Issue 4 , September and October 2018, Pages 1247-1259


  Introduction: Investigation of water passing through soil is one of the most important problems in soil mechanics and environmental engineering. It is an important parameter for predicting the movement of water and contaminants dissolved in the water through the soil and measured on soil samples in ...  Read More

Research Article
Copula-Based Regional Drought Analysis and Derivation of Severity-Area-Frequency Curve in Lake Urmia Basin

M. Montaseri; B. Amirataee; H. Rezaei

Volume 31, Issue 4 , September and October 2018, Pages 1260-1277


  Introduction: Drought is a natural phenomenon and was described when precipitation is less than expected. Since the precipitation amounts in terms of spatial and temporal characteristics are different from one region to another, so this phenomenon is known as a multivariate phenomenon. This phenomenon ...  Read More

Research Article
Estimating BioavailablePhosphorus by Some Chemical Extraction Methods for Algae (Senedesmusobliquus) in Western River Sediments of the Lake Urmia Basin

H. Arfania; Abbas Samadi; F. Asadzadeh; E. Sepehr

Volume 31, Issue 4 , September and October 2018, Pages 1200-1214


  Introduction: Phosphorus (P) is an essential nutrient for all life forms. In aquatic environments, P is a double-edged sword. In some areas, habitat biodiversity is strongly limited by low P bioavailability, while in others, P inputs in excess of plant needs have led to pollution of water bodies and ...  Read More

Research Article
Evaluation of Spatial Variability of Biological Indicators of Soil Quality in Wheat Farms of Pasargad Plain

vahid alah jahandideh mahjan abadi; alidad karami; sayed roholla mousavi; H. Asadi Rahmani

Volume 31, Issue 4 , September and October 2018, Pages 1247-1259


  Introduction:Soil quality as an important part from soil resource sustainability, consistently isinfluenced by human activities.Today, the presence of accurate information about variability of soil quality properties is considered more than ever to apply this information in economic modeling, environmental ...  Read More

Research Article
Application of Fractal Theory to Quantify Structure from Some Soil Orders

alidad karami; R. Zara; vahid alah jahandideh mahjan abadi

Volume 31, Issue 4 , September and October 2018, Pages 1171-1186


  Introduction: Fractal geometry concepts have been widely applied as a useful tool to describe complex natural phenomena, in particular,for a better understanding of soil physical systems. However, limited information is available on the fractal characteristics of soil properties or soil aggregation. ...  Read More

Research Article
Interactive Effect of Fe and Pb on Decreasing Corn Pb Availability in a Pb-Polluted Soil

N. Tabarteh Farahani; A.HA.H. Baghaie

Volume 31, Issue 4 , September and October 2018, Pages 1187-1199


  Introduction: Lead (Pb) is of great concern in environment because of its toxicity to animals and humans. Lead is a cumulative toxin and known carcinogen. Although, plants do not require Pb for growth, the bioaccumulation index of Pb in plants exceeds that of most other trace elements. It is therefore ...  Read More

Research Article
Critical Level of Iron for Bean (Phaseolus vulgaris L.) Cultivation in Markazi Province

M. A. Khodshenas; J. Ghadbeiklou; M. Dadivar

Volume 31, Issue 4 , September and October 2018, Pages 1148-1158


  Introduction: Soil test has an important role in plant nutrition management to obtain the economical agriculture system. The nutrient concentration in soils that indicates the division between responsive and non-responsive conditions is termed the critical level. Before any fertilizer recommendation, ...  Read More

Research Article
Effect of Potassium Releasing Pseudomonads on Growth and K Uptake of Tomato in Two Soils with Different Amount of Available K

M. Deilamirad; Mohammad Reza Sarikhani; Sh. Oustan

Volume 31, Issue 4 , September and October 2018, Pages 1159-1170


  Introduction: Potassium is a major and essential plant macronutrient and the most abundant absorbed cation in higher plants. Potassium (K) plays an important role in the growth, metabolism, and development of plants. There are three forms of potassium found in the soil viz., soil minerals, nonexchangeable ...  Read More

Research Article
Potassium Solubilizing Bacteria Ability to Increase Wheat Growth and Potassium uptake under in vitro Condition

N. Enayatizamir; A. Landi

Volume 31, Issue 4 , September and October 2018, Pages 120-1134


  Introduction: Potassium (K) is the third major essential macronutrient for plant growth. Without adequate potassium, the plants will have poorly developed roots, grow slowly, produce small seeds and have lower yields. Due to imbalanced fertilizer application, potassium deficiency is becoming one of the ...  Read More

Research Article
Characterizing the Error Structure of Selected Soil Particle Size Distribution Models

F. Afrasiabi; H. Khodaverdiloo; F. Asadzadeh

Volume 31, Issue 4 , September and October 2018, Pages 1135-1147


  Introduction Particle size distribution (PSD) is one of the most fundamental features of soil physics that is widely used as the most common input for predicting several key soil attributes. The mathematically representing the PSD provides several benefits to soil mechanics, physics, and hydrodynamics ...  Read More

Research Article
The Effect of Integrated Crop Management on Soil Chemical Properties

A. Baghdadi; M. Balazadeh; A. Kashani; F. Golzardi

Volume 31, Issue 4 , September and October 2018, Pages 1093-1107


  Introduction In recent years, continuous operation and disrespect to crop rotation has caused the destruction of soil organic matter so that organic matter in arid and semiarid areas of the country is at least possible and According to the hazards and contamination of chemical fertilizers usage, need ...  Read More

Research Article
Application of Fe-EDDHA on Soybean and Distribution of Chemical Forms of Iron in Soils of Fars Province

leila tabande; M. R.Bakhshi

Volume 31, Issue 4 , September and October 2018, Pages 1108-1119


  Introduction Among essential plant microelements, iron (Fe) exert the highest restriction of crop production in Fars Province. Trace elements in the soil is composed of forms into 5 groups. These are the water-soluble and variable, adsorbed, chelate creating with complex compounds, secondary clay minerals, ...  Read More

Research Article
Effect of Polyacrylamide Polymer on Wind Erosion Control of Sandy Soil in Azadegan Plain

F. Arzaghi; A. Farrokhian Firouzi; N. Enayatizamir; B. Khalilimoghaddam

Volume 31, Issue 4 , September and October 2018, Pages 1070-1082


  Introduction: Wind erosion is the most important agent of environmental degradation, poverty of soil, air pollution and the dust spread. Wind erosion is causing a lot of damage to crops, buildings, facilities and vehicles. The first step of the wind erosion control is the stabilization of soil particles. ...  Read More

Research Article
Study the Population of Iron and Sulfur Oxidizing Bacteria in the Soil of Miduk Cooper Mine in Shahrebabk

M. Hassanshahian; S. Ghorbani

Volume 31, Issue 4 , September and October 2018, Pages 1083-1092


  Introduction: One of the most important indicators in relation to industry, economy and environment is to achieve the most recovery with the least cost and minimum pollution. Today, the use of chemolithotrophic microorganisms is common for extraction of some metals such as cooper, uranium, gold, cobalt ...  Read More

Research Article
Sensitivity Analysis of FAO Penman-Monteith Model in Daily Reference Evapotranspiration Estimation and Zoning Sensitivity Coefficients across Iran

F. Khadempour; B. Bakhtiari; S. Golestani

Volume 31, Issue 4 , September and October 2018, Pages 1046-1059


  Introduction: In drainage and irrigation network capacity design and determination, reference evapotranspiration (ETo) plays significant role. Methods applied for estimated reference evapotranspiration classified in two direct and computational methods. Amongst computational methods it might point to ...  Read More

Research Article
Effectiveness Comparison of Pot, Porous Pipe and Gravity Drip Irrigation Methods in the Range of Gravity Pressures

M. Arabfard; A. Shahnazari; Mirkhaleg Ziatabar Ahmadi

Volume 31, Issue 4 , September and October 2018, Pages 1060-1069


  Introduction: Practical problems such as rushing roots toward pot, difficulty of manually filling with water and deficit irrigation due to permeation from regular pots prevents the development of pot irrigation. With regard to increasing irrigation efficiency importance and preventing water loss to fix ...  Read More

Research Article
Modeling the Effects of Climate Change on Irrigation Requirement and Water Use Efficiency of Wheat Fields of Khuzestan Province

R. Deihimfard; H. Eyni Nargeseh; Sh. Farshadi

Volume 31, Issue 4 , September and October 2018, Pages 1015-1030


  Introduction: One of the most important consequences of the future climate change is its impact on water use and water use efficiency (WUE) in agriculture which could challenge the water resources management. Khuzestan province is one of the most important areas of crops production in Iran particularly ...  Read More

Research Article
Application of Archimedean and Extreme values Copula Functions for Multivariate Analysis of Low Flows in Dez Basin

F. Ahmadi; F. Radmanesh; G. A. Parham; R. Mirabbasi Najaf Abadi

Volume 31, Issue 4 , September and October 2018, Pages 1031-1045


  Introduction: Hydrological phenomena are often multidimensional and very complex. Hence, the joint modeling of two or more random variables is required to investigate the probabilistic behavior of them. To this aim, the copulas can be efficiently utilized to derive multivariate distributions. In addition, ...  Read More

Research Article
Effect of Different Irrigation Levels and Cultivation Techniques on Water Use Efficiency and Quantity and Quality yield of Sweet Corn (Zea mays var. saccharata)

M. J.Fereidooni; H. Farajee

Volume 31, Issue 4 , September and October 2018, Pages 1001-1014


  Introduction: In Iran, due to reduction of water resources and increasing of water losses in the various methods of the surface irrigation pressurized irrigation methods, especially drip irrigation have got many attentions. Application of the plastic mulch method is used in cultivation of early sweet ...  Read More