نتایج جستجو برای: basin and furrow irrigation

تعداد نتایج: 16848440  

Journal: :آب و خاک 0
سید نادر شتاب بوشهری سید فرهاد موسوی سید بهزاد شتاب بوشهری

abstract one of the problems in design of irrigation structures is sedimentation control in the inlet to the irrigation networks. water quality for agriculture requires that the sediments be controlled and reduced to the permissible limit at their entrance point to the turnouts and irrigation networks. this is possible by constructing a sedimentation basin. the bigger the basin, the best the re...

Journal: :Indian Journal of Agricultural Sciences 2022

A field experiment was conducted in maize under medium-term conservation agriculture (CA) based maizewheat system at BISA-CIMMYT, Ladhowal, Punjab during kharif 2019 to assess the effect of CA+ practices (CA with sub-surface drip irrigation) variable N doses on maize. The treatments were residue retained (WR) permanent bed (PB) fertigation (PB-SSD): without (N0), 120 kg N/ha,150 N/ha applied 4-...

Journal: :تحقیقات مهندسی کشاورزی 0
غلامعلی کیخا کارشناس ارشد آبیاری و زهکشی مرکز تحقیقات کشاورزی و منابع طبیعی زابل فاطمه کیخایی کارشناس ارشد آبیاری مرکز تحقیقات کشاورزی و منابع طبیعی اراک ناصر گنجی خرم دل عضو هیأت علمی گروه مهندسی آب دانشگاه اراک مهدی کیخا دانش آموخته کارشناسی ارشد آبیاری و زهکشی دانشگاه تهران

this study evaluates the effect of irrigation method on the water use efficiency and yield of onions at the zahak agricultural research station in sistan province. the testing was conducted using a split plot arrangement and a randomized complete block design with three replications during the 2005-2006 crop seasons. irrigation methods were basin and drip tape irrigation and the irrigation leve...

Journal: :Agrosystems, Geosciences & Environment 2020

Journal: :Agriculture 2021

Improved irrigation management is identified as a potential mitigation option for methane (CH4) emissions from rice (Oryza sativa). Furrow-irrigated (FR), an alternative method to grow rice, increasingly adopted in the Mid-South U.S. However, FR may provide risk yield performance and higher of nitrous oxide (N2O). This study quantified grain yields, CH4 N2O three different water practices rice:...

ژورنال: علوم آب و خاک 2014
برومندنسب, سعید, بهرامی, مهدی, لاله ‌زاری, رضا,

Advance velocity is an important factor in surface irrigation system design and simulation. Volume balance is a simple model based on continuity equation used in surface irrigation design and management. In the past volume balance models, it is generally assumed that the upstream depth of surface water is constant and equal to normal depth. This initial assumption may cause significant errors i...

Journal: :چغندرقند 0
جواد بهمنش دانشیار گروه مهندسی آب دانشگاه ارومیه، ایران امیر نورجو دانشگاه ارومیه

this study was conducted in split plot design based on a randomized complete block design in naghadeh region, urmia, iran in 2009-10. two sowing patterns including a1) single row planting with 50 cm between-row spacing, and a2) two rows planting on the hill with 40 cm distance and 50 cm between-row spacing (40×50) were allocated to main plots and four furrow compactions including b1) control, b...

Journal: :چغندرقند 0
جواد بهمنش دانشگاه ارومیه امیر نورجو دانشگاه ارومیه

this study was conducted in split plot design based on a randomized complete block design in naghadeh region, urmia, iran in 2009-10. two sowing patterns including a1) single row planting with 50 cm between-row spacing, and a2) two rows planting on the hill with 40 cm distance and 50 cm between-row spacing (40×50) were allocated to main plots and four furrow compactions including b1) control, b...

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