نتایج جستجو برای: irrigation systems

تعداد نتایج: 1221594  

Journal: Journal of Nuts 2020

Aflatoxins are secondary metabolites produced by Aspergillus flavus, A. parasiticus, A. tamari, A. bombycis and A. nomius species. Relative humidity (RH) is one of the most important parameters influencing the development of aflatoxins in pistachio orchards by Aspergillus species. The type of irrigation system affects density and frequency of the Aspergillus species in the soil. In the current ...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
محمد آقاپور عضو هیئت علمی دانشگاه آزاد اسلامی شوشتر سعید یزدانی استاد گروه اقتصاد کشاورزی دانشگاه تهران حامد رفیعی استادیار گروه اقتصاد کشاورزی دانشگاه

rejection of pressurized irrigation by farmers is the problem in the agricultural sector in the north of the khouzestan province. as the statistics show, only five percent of the farmers used to do this type of irrigation systems. therefore, in this study by using field study and logit model, causes of rejecting pressurized irrigation methods in three townships shosh. andymeshk and dezful have ...

Journal: :Journal of endodontics 2011
Ross P Mitchell J Craig Baumgartner Christine M Sedgley

INTRODUCTION Root canal irrigation carries a risk of extrusion of irrigant into the periapical tissues. The objective of this study was to compare different irrigation systems in matched pairs of teeth prepared to an apical size of 35.06 and 50.06 by measuring the frequency and extent of apical extrusion of sodium hypochlorite (NaOCl) into a simulated periapical environment. The null hypothesis...

Journal: :بوم شناسی کشاورزی 0
سارا سنجانی سید محمد باقر حسینی محمدرضا چائی چی شهرام رضوان بیدختی

to evaluate the yield and yield components in additive intercropping system of grain sorghum (sorghum bicolor l.) and cowpea (vigna unguiculata l.) under limited irrigation condition, an experiment was conducted in research farm of college of agriculture, university of tehran, during spring 2006. the experimental treatments were arranged in split plots based on a complete randomized block desig...

2005
Melissa C. Baum Michael D. Dukes Grady L. Miller

Irrigation has become commonplace for residential homeowners desiring high quality landscapes in Florida. The goal of this project was to document irrigation system uniformity in Central Florida and to quantify distribution uniformity of residential sprinkler equipment under controlled conditions. The catch-can testing procedure used was a modified version of both the American Society of Agricu...

2013
Dan Chen Zhao-Hui Luo Jing Chen Jun Kong Dong-Li She

Sustainability evaluation of the process of water abstraction, distribution, and use for irrigation can contribute to the policy of decision making in irrigation development. Emergy theory and method are used to evaluate a pumping irrigation district in China. A corresponding framework for its emergy evaluation is proposed. Its emergy evaluation shows that water is the major component of inputs...

The drought continuity and also restricting watery sources caused agriculture section forgetold flooding methods for optimum water exploitation and proceeding new irrigation systems.New generation of irrigation systems called intelligent systems is a new solution leading toexploiting water increase to higher than 80%. In order to measure sensors and to controlprocessors in designing and dismoun...

2015
Ana Allende James Monaghan Mieke Uyttendaele Eelco Franz Oliver Schlüter

There is increasing evidence of the contribution of irrigation water in the contamination of produce leading to subsequent outbreaks of foodborne illness. This is a particular risk in the production of leafy vegetables that will be eaten raw without cooking. Retailers selling leafy vegetables are increasingly targeting zero-risk production systems and the associated requirements for irrigation ...

2015
Emel Uzunoglu Melahat Görduysus Ömer Görduysus

BACKGROUND The aim of this study was to compare manual needle irrigation (MNI), RinsEndo (RE), and passive ultrasonic irrigation (PUI), and assess the effect of gravity on extrusion from the apex in vitro. MATERIAL AND METHODS The distobuccal roots of molars were used and the canals were instrumented up to F2. Teeth were mounted on models, which permitted visualization and manipulation of the...

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