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    • List of Articles خصوصیات فیزیکوشیمیایی خاک

      • Open Access Article

        1 - Investigation effect of the developing salinity water on the quality of irrigation water and soils physicochemical characteristics of pistachio cultivation of Sirjan area
        Ali Neshat Ali Zeinadini
        Sirjan area is one of the important agricultural areas in Kerman province. Sirjan-zeidabad plain is themost important area of agriculture in Sirjan city and the most of it is allocated to culture pistachio. Inrecent three decades, high application of ground waters, cont More
        Sirjan area is one of the important agricultural areas in Kerman province. Sirjan-zeidabad plain is themost important area of agriculture in Sirjan city and the most of it is allocated to culture pistachio. Inrecent three decades, high application of ground waters, continued droughts and serious evaporationcaused the decrease of groundwater level that resulted moving salinity water from the Kheirabad saltpan to nearly pistachio lands. The moving salinity water in this area caused the undesirable quality ofirrigation water, change of physicochemical characteristics and decreasing pistachio yield. In order toperform this research, first, topographical maps (1:25000) and satellite pictures of area were applied.Then a number of studied points were chosen and samples of soils and waters at any point were sent tolibrary. At next step, regression of relationships between soil and water considering differentparameters such as EC, pH, Ca, Mg, Na, Cl and HCO3 was confirmed by using Excel software.Results showed that all parameters of irrigation water, except PH, have direct effect on factors in soil.This subject shows the effects of unknown waters on changing the quality of soil characteristicsespecially land salinization. The measured parameters volumes, in areas under effect of developing ofsalinity water, were unusable for cultivation based on FAO standards The pistachio orchards whichhad no problems of salinity, had economic production. Also, results showed that time has effect onundesirability of irrigation waters. Finally, for every studied area there was a completed questionnairein order to predict new ways of removing the problems. Manuscript profile
      • Open Access Article

        2 - Effect of Cover Crop Residues on Some Physicochemical Properties of Soil and Emergence Rate of Potato
        M. Ghaffari G. Ahmadvand M.R. Ardakani M.R. Mosaddeghi F. Yeganehehpoor M. Gaffari M. Mirakhori
        The aim of this study, was to evaluate the effect of winter cover crop residues on speed of seed  potato emergence and percentage of organic carbon, soil specific weight and soil temperature. An experiment was carried out at the Research Farm of Agriculture Faculty More
        The aim of this study, was to evaluate the effect of winter cover crop residues on speed of seed  potato emergence and percentage of organic carbon, soil specific weight and soil temperature. An experiment was carried out at the Research Farm of Agriculture Faculty, Bu-AliSinaUniversity, in 2008-2009. The experiment was a randomized complete block design with three replications. Winter cover crops consisted of rye, barley and oilseed rape, each one with common plant density (rye and barley at 190 kg.ha-1 and oilseed rape at 9 kg.ha-1) and triple plant densities(rye and barley 570 kg.ha-1 and oilseed rape, 27 kg.ha-1) and control (without cover crop). The results showed that rye and barley with triple plant densities produced higher biomass (1503.5 and 1392.2 g/m2, respectively) than other treatments.Soil physicochemical properties were affected significantly by using cover crops. Rye, barley, and oilseed rape with triple rate and rye with common rape of plant densities produced, the highest organic carbon. Green manure of rye and barley with triple and rye with common rate plant densities, reduced soil specific weights by 17.3, 18 and 18 percent as compared with the control treatment (without cover crop planting). Rye and barley with triple plant densities increased average soil temperature by 12 and 11 percent respectively in comparison with control treatment. These treatments increased speed of seed potato emergence by 20 and 12 percent respectively as compared with that of control treatment, respectively. Other treatments showed no significant difference as compared to control. Cover crop residues increased plants speed of seed potato emergence through improving soil conditions. Manuscript profile
      • Open Access Article

        3 - Impact of Tamarix aphylla and Atriplex canescens plantations on some Physico-chemical properties of the soil in Zahak region, Sistan
        Einollah Rouhi Moghaddam Ali Heidari Sadegh Akbar Fakhireh Zeinab Noori Kia Soheila Noori
        The purpose of the research is to compare the effect of Tamarix aphylla (L.) and Atriplex canescens (Pursh) Nutt. cultivation on the soil's properties. The species were cultivated in a land with the area 42 ha and with the spacing 5m*5m in 1993 in Zahak, northern Sistan More
        The purpose of the research is to compare the effect of Tamarix aphylla (L.) and Atriplex canescens (Pursh) Nutt. cultivation on the soil's properties. The species were cultivated in a land with the area 42 ha and with the spacing 5m*5m in 1993 in Zahak, northern Sistan and Balochistan pro. Soil samples were taken at the depth of 0-30 cm and 31-60 cm with 8 replicates from any habitat and the control area using auger based on random-systematic method. physicochemical properties were measured, including soil texture, phosphorous, potassium, nitrogen, organic matter, T.N.V, EC and pH. Data analysis was performed using one-way ANOVA and Duncan's test. The results showed that there were differences between the properties of the region's soil. In other words, the soil EC of A. canescens (47.98 mmhos/cm) was more than that of T. aphylla (15.70 mmhos/cm) and the control area (15.80 mmhos/cm) at the depth of 0-30 cm. The soil pH of A. canescens (8.92) was also more than that of T. aphylla (8.62) and the control area (8.70). The available potassium in T. aphylla habitat (460 ppm) was also more than that in A. canescens habitat (325 ppm) and the control area (180 ppm). At the depth of 31-60 cm, the soil pH of A. canescens (9.02) was more than that of the control area (8.65). Therefore, it is more suitable to cultivate T. aphylla as a native species than A. canescens for biological restoration of the region. Manuscript profile
      • Open Access Article

        4 - Investigating the relationship between the distribution of medicinal plants and the physicochemical properties of soil in the pastures of Balde Noor
        Ghasemali Diyanati Mozhga n Moraffa حسن قلیچ نیا
      • Open Access Article

        5 - Studying the effect of white saxaul (Haloxylon persicum) and fourwing saltbush (Atriplex canesces) plantation on soil physico-chemical properties in rangelands of Mallard-Zarandiyeh
        Abbas Ahmadi Hamid Toranjzar Masoud Gomarian Sohrab Pagnameh
        Haloxylon sp. and Atriplex sp. are among aridity and salt tolerant species which have been planted extensively in practices of combat desertification and arid and semi-arid rangelands reclamation, in recent decades. This study was performed in order to assessment of sax More
        Haloxylon sp. and Atriplex sp. are among aridity and salt tolerant species which have been planted extensively in practices of combat desertification and arid and semi-arid rangelands reclamation, in recent decades. This study was performed in order to assessment of saxaul and saltbush planting on soil properties in a part of desert rangelands of Mallard Zarandiyeh. Three sites included: control (natural rangeland), Atriplex canescens plantation and Haloxylon persicum plantation types with an area of five hectares for each of them. In each area, 20 plots along six 500 meters transects were located by randomized-sysematic methods for sampling. Soil samples were collected from two depth (0-30 and 30-60 cm) in control and treatment areas (Atriplex and Haloxylon planting) and Soil samples were physically and chemically analyzed in the laboratory for some variables such as: texture, EC, pH, organic carbon, Caco3, P, CA, Mg, N, K, Cl, Na and HCO3-. Data were analyzed by ANOVA. The results showed that except for acidity and silt (%), there were significant differences between Control area and treated areas (planted sites with Atriplex and Haloxylon) in soil variables. Also, Haloxylon pesicum has been caused the salinization and alkalization and calcification of surface soil, more than Atriplex canesces; but regarding to more adaptation, white saxaul seems to be more suitable plant to reclamation of such arid rangelands, as a native species. Manuscript profile