نتایج جستجو برای: alternate furrow irrigation

تعداد نتایج: 69503  

2014
W. B. Nie L. J. Fei X. Y. Ma

Closed-end furrows are commonly used to irrigate crop in northern part of China. The irrigation performance of furrow in this area is often low. The objectives of this paper are to verify reliability of infiltration parameters and Manning roughness estimated with SIPAR_ID software and present an optimized method for design of closed-end furrow system. The study consisted of field experiments an...

Journal: :چغندرقند 0
آژنگ جاهدی مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی همدان

in order to study the effects of different irrigation system and different amounts of nitrogen fertilizer on yield and quality of sugar beet, an experiment was conducted at ekbatan research station, hamedan during 2005-2006 as split plot based on randomized complete block design  with three replications. the main plots were irrigation systems (furrow, sprinkler and drip irrigation) and subplots...

Journal: :تحقیقات مهندسی کشاورزی 0
منصور معیری عضو هیئت علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی صفی آباد فریدون کاوه عضو هیئت علمی دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران.

this study was conducted to evaluate the current management of furrow and border irrigation systems in the dez irrigation network. of the eight farms studied, three grew wheat and one each grew corn, sugar beets, lettuce, sesame and mung beans. the study found water application efficiency in the five farms with furrow irrigation systems to be 25.8% and for the three farms with border irrigation...

Journal: :Agronomy Journal 2023

Twin-row planting in maize (Zea mays L.) has potential for reducing plant-crowding stress optimizing grain yield and resource use. A study was conducted 2020 2021 on a Dundee silt loam the Lower Mississippi Delta (LMD) region of United States to evaluate irrigation water use efficiency (IWUE) single-row (SR) twin-row (TR) patterns with same seed rate under four regimes: rainfed (RF), all-furrow...

Journal: :چغندرقند 0
حمیدرضا سالمی استادیار پژوهش بخش تحقیقات فنی و مهندسی کشاورزی- مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان محمدرضا جهاداکبر مربی پژوهش بخش تحقیقات چغندرقند- مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان علیرضا نیکویی استادیارپژوهش بخش تحقیقات اقتصادی، اجتماعی و ترویجی- مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان

due to the scarcity of water resources, the need for sustainable development of drip irrigation tape is essential in iran. a number of drip irrigation tape systems used in sugar beet fields of isfahan and chahar mahal va bakhtiari provinces were evaluated and were compared with furrow irrigation methods in two consecutive years. the actual water use efficiency (wuesy, wuewsy) in lower quarter, ...

A.R. Sepaskhah M.M. Maharlooei R. Jafari S. M. Nassiri

ABSTRACT Water management is an essential concept for water intensive crop such as maize dealing with water shortage under drought conditions. Maize production is ranked after wheat and barely in Fars province, Iran. Therefore, the present study was conducted to investigate the effects of planting methods by conventional and modified planters on maize growth and yield at different irrigation re...

2010
April B. Leytem David L. Bjorneberg

Intensification of the dairy industry in southern Idaho has led to the overapplication of manures and a buildup of soil phosphorus (P), which is a potential threat to water quality in the region. As the use of alum has been shown to reduce both soluble manure P and runoff P from alum-treated manures, the objective of this study was to determine if surface applications of alum to dairy manure an...

Iman Saleh, Jahanshah Saleh Khabat Khosravi, Masoud Masoudi

Current study was carried out with aim to evaluate the effect of pressurized irrigation methods and furrow irrigation method with municipal effluent on distribution of salinity and moisture in the soil profile. The experimental study was designed by split plot layout with three irrigation methods including furrow, surface drip (SD) irrigation and subsurface drip irrigation (SSD) and two water q...

Journal: :چغندرقند 0
جهانشاه بساطی مربی مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه مهیار شیخ الاسلامی ااستادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه علی جلیلیان استادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه محمدرضا جهاداکبر مربی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان فرحناز حمدی کارشناس ارشد موسسه تحقیقات چغندرقند

powdery mildew of sugar beet is a common disease in many sugar beet growing areas causing root yield and sugar content reduction. the aim of this study was to evaluate the effects of different irrigation methods on powdery mildew severity in sugar beet. eight susceptible and resistant commercial cultivars were evaluated under sprinkler and furrow irrigation systems in a randomized complete bloc...

A. Shabani A.A Kamgar-Haghighi A.R. Sepaskhah,

Shortage and salinity of irrigation water are two major constraints that influence rapeseed production in arid and semi-arid regions of central and southern Iran. In this study, effects of deficit irrigation with different salinity levels and planting methods (in-furrow and on-ridge) as strategies for coping with water and salinity stresses on yield and yield quality of rapeseed were invest...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید