نتایج جستجو برای: alternate furrow irrigation

تعداد نتایج: 69503  

فرزام نیا, مسعود , مصطفی ‌زاده, بهروز ,

In this research, the hydraulic behavior of furrow irrigation was investigated under cut-back, Walker-Skogerboe and conventional methods at the three experimental farms of Lavark, Shervedan, and Isfahan University of Technology for three irrigation events. In each farm, data were collected for each of the above methods with at least three replications including furrow shape, furrow length, furr...

2002
Thomas J. Trout

*Thomas J. Trout, USDA-Agricultural Research Service, Water Management Research Laboratory, 9611 S. Riverbend Ave. Parlier, CA 93658. *Corresponding author: [email protected] ABSTRACT Sediment data were collected in southern Idaho irrigation furrows. Irrigation furrows allow detailed study of sediment transport relationships because of gradually decreasing flow rates in long, uniform, ...

تدین‌فر, سعید, جعفری, پیمان , جلالی, امیرهوشنگ,

A two-year study was conducted to determine the effect of three depths of furrow and three plant row spacing, on irrigation water efficiency, yield and yield components of watermelon (Crimson Sweet cultivar) using a strip split plot arranged in a randomized complete block design with three replications. Three depths of furrow (15, 35 and 55 cm) were considered as horizontal factor and three pla...

Journal: :تحقیقات آب و خاک ایران 0
ابراهیم وطن خواه پردیس کشاورزی و منابع طبیعی دانشگاه تهران حامد ابراهیمیان عضو هیئت علمی گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the growth and development of crop models such as aquacrop model is the most important tools for decision-making and predicting crop yields. the aim of this research was to assess aquacrop model for simulating spatial variability of forage maize yield along the furrow. four treatments for calibration and validation of the model were investigated based on the percentage of supplied crop water re...

Journal: :Current Biology 2012
Jinghe Liu Gregory D. Fairn Derek F. Ceccarelli Frank Sicheri Andrew Wilde

Cell division is achieved by a plasma membrane furrow that must ingress between the segregating chromosomes during anaphase [1-3]. The force that drives furrow ingression is generated by the actomyosin cytoskeleton, which is linked to the membrane by an as yet undefined molecular mechanism. A key component of the membrane furrow is anillin. Upon targeting to the furrow through its pleckstrin ho...

2010
Carlos I. Flores Eduardo A. Holzapfel Octavio Lagos

An online dynamic decision support system (DDSS) was developed, to support the farm water management in surface irrigation. The online DDSS was based on the formulation and integration of three components: a dynamic-relational data base, an administrator model, and a graphical user interface. The DDSS allows routines of actualization, edition and addition of online data, providing information i...

Journal: :پژوهش آب در کشاورزی 0
شهرام کریمی گوغری استادیار گروه مهندسی آب، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان. رسول اسدی عضو استعدادهای درخشان باشگاه پژوهشگران و نخبگان جوان دانشگاه آزاد اسلامی واحد کرمان. مهدیه ساعی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان کرمان.

with population growing throughout the world, it is necessary to optimize water use,especially in agricultural lands. in order to conduct technical and economical evaluation ofdrip and furrow irrigation methods under deficit irrigation of cotton, a field experiment wascarried out during 2010 growing season at experimental farm of orzoueyeh agricultural andnatural resources research center in ke...

Journal: :مهندسی زراعی 0
فریده یاراحمدی دانش آموخته کارشناسی ارشد گروه خاکشناسی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز احمد لندی دانشیار گروه خاکشناسی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز محمد امین آسودار دانشیار گروه ماشینهای کشاورزی، دانشکده کهندسی زراعی، دانشگاه کشاورزی و منابع طبیعی رامین اهواز عادل مرادی سبزکوهی مربی، دانشکده مهندسی زراعی، دانشگاه کشاورزی و منابع طبیعی رامین اهواز

increasing the concentrations and emissions of greenhouse gases makes the weather warmer and affects land uses. carbon dioxide emission is recognized as one of the most important factors in global warming. the objectives of this research were to investigate the amount of co2 emission from soil to atmosphere during the wheat growth under two different tillage and irrigation methods. in this stud...

ژورنال: علوم آب و خاک 2015
برومندنسب, سعید, بهزاد, مجید, شینی دشتگل, علی, قهرمان‌نژاد, مصطفی, ناصری, عبدعلی,

Infiltration is the most crucial process affecting surface irrigation uniformity and efficiency as it is the mechanism that transfers and distributes water from the surface to the soil profile. As a direct method of infiltration measurement, the volume balance method requires time, accuracy and high costs. Moreover, before the land preparation and at the research phase the use of this method is...

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