نتایج جستجو برای: soil and agricultural conditions

تعداد نتایج: 16946821  

Mohamad Chizari Mosayeb Baghaie,

Objective: The main purpose of this research is review of principles, concepts, problems and solutions of soil ethic. Methods: In this research by descriptive method and Delphi technique was used for identifying soil ethical concepts, soil ethical principles, problems and difficulties of soil ethics in Iran and al around the world and suggestions for improvement of soil ethics in Iran. The popu...

ژورنال: علوم آب و خاک 2002
گیتی امتیازی, , حسین شریعتمداری, , علی ا‌کبر صفری سنجانی, ,

Soil organic matter and clay minerals adsorb and immobilize extracellular enzymes of microorganisms and increase soil enzymes stability. This study aims to clarify the relative importance of soil organic matter and clay minerals on the cellulolytic activities of soils. Fluca prepared cellulase was immobilized on some agricultural residues and clay minerals, avicel and a sample of soil. Immobili...

گیتی امتیازی, , حسین شریعتمداری, , علی ا‌کبر صفری سنجانی, ,

Soil organic matter and clay minerals adsorb and immobilize extracellular enzymes of microorganisms and increase soil enzymes stability. This study aims to clarify the relative importance of soil organic matter and clay minerals on the cellulolytic activities of soils. Fluca prepared cellulase was immobilized on some agricultural residues and clay minerals, avicel and a sample of soil. Immobili...

2016
Rishikesh K. Tiwari Shikha Singh Ravi S. Pandey Bechan Sharma

The importance of the earthworms in the agricultural practices is well known. The increasing applications of pesticides and chemicals in the agricultural farms have adversely influenced the flora and fauna of the soil. Earthworms which immensely contribute in increasing the quality and fertility of agricultural soil are reported be worst hit organisms under such conditions. Recent reports have ...

Journal: :مدیریت اراضی 0

this study was carried out in order to develop a soil fertility database and to assess agricultural soil fertility of country. to this end, 315000 soil test data (more than 50000 soil samples) that provided by laboratories of soil and water research centers in 30 provinces of iran between 2002 and 2012 was collected. results revealed that amount of  plant available  phosphorus and potassium of ...

Journal: :The Science of the total environment 2007
Jesse O Bash David R Miller

Elevated mercury concentrations were measured at the University of Connecticut's mercury forest flux tower during spring agricultural field operations on an adjacent corn field. Concentrations at the tower were elevated, a peak of 7.03 ng m(-3) over the background concentration of 1.74+/-0.26 ng m(-3), during times when the prevailing wind was from the direction of the corn field and during per...

Journal: :مدیریت آب و آبیاری 0
جواد رحمانی ثقیه کارشناس ارشد، گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز – ایران. علی قائمی دانشیار، گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز - ایران

the accuracy and effectiveness of precision agriculture is highly depending on accuracy and time analysis of the soil moisture conditions. monitoring of the soil water status is a proper method for optimizing the agricultural irrigation. automation irrigation, based on soil moisture measurement by smart sensors has the potential to provide maximum water use efficiency by maintaining soil moistu...

2012
Eva L. M. Figuerola Leandro D. Guerrero Silvina M. Rosa Leandro Simonetti Matías E. Duval Juan A. Galantini José C. Bedano Luis G. Wall Leonardo Erijman

The rise in the world demand for food poses a challenge to our ability to sustain soil fertility and sustainability. The increasing use of no-till agriculture, adopted in many areas of the world as an alternative to conventional farming, may contribute to reduce the erosion of soils and the increase in the soil carbon pool. However, the advantages of no-till agriculture are jeopardized when its...

Eshghizadeh, Hamid Reza , Khazaie, Hamid Reza , Moghanibashi Najafabadi, Morteza , Nezam, Ahmad ,

Sesame is one of the oldest crops in the world that is commonly cultivated in arid and semi-arid due to high oil seeds (42-52%). In order to determine the effects of water deficit (55, 75 and 85 percent evacuation of soil water) on genotype sesame (Varamin, Naztakshakhe, Oltan and Yekta), a field experiment was conducted using a split-plot in randomized complete design with three replication at...

2010
D. de la Rosa

To develop a new and truly sustainable agriculture that reverses environmental deterioration and at the same time augmenting the supply of food, agro-ecological innovations are necessary which consider the importance of using soil information in decision-making (Ball & De la Rosa, 2006). Soils can be used for almost all agricultural purposes if sufficient inputs are supplied. The application of...

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