نتایج جستجو برای: spring single irrigation

تعداد نتایج: 959433  

Journal: :Agricultural Water Management 2022

Soil System Budgets (SSB) of nutrients are generally performed annually over arable land to infer their use efficiency and water pollution risk in highly exploited agricultural watersheds. They seldom partitioned into seasonal budgets matched with nutrient transport adjacent river reaches. We calculated soil nitrogen (N) a Mincio River sub-basin (Italy), we analyzed the dissolved inorganic N ne...

Journal: :تولید گیاهان زراعی 0
محمد تقی فیض بخش مرکز تحقیقات کشاورزی و منابع طبیعی گرگان بهنام کامکار دانشگاه علوم کشاورزی و منابع طبیعی گرگان حسن مختاربور مرکز تحقیقات کشاورزی و منابع طبیعی گلستان محمد اسماعیل اسدی مرکز تحقیقات کشاورزی و منابع طبیعی گلستان

sowing date and irrigation are two constrain factors for maize production. these factors can be simulated by using ceres-maize model. for this purpose two experiments (each one at two years) were carried out at agricultural research station of gorgan which is golestan province capital. the model was calibrated using three treatments of optimum irrigation and without stress in 2012 and two treat...

Journal: :Agricultural sciences 2023

Experiments were conducted in 2020 and 2021 North Dakota to determine the effects of foliar soil applied fertilizers, variety irrigation on yield grain quality spring wheat. Foliar application N did not consistently increase protein indicating levels adequate optimize yield. The Bolles had higher content than Faller. Zinc (Zn) was greatest when at either flowering or post anthesis. It also foun...

Journal: :Tree physiology 2001
R Borchert G Rivera

Tropical stem-succulent trees store large quantities of water in their trunks yet remain leafless during the early and mid dry season. In contrast to most other tropical trees, bud break of vegetative buds is not induced in fully hydrated stem succulents between the winter solstice and the spring equinox by leaf abscission, abnormal rain showers or irrigation. Vegetative buds of leafless trees ...

عالمی‌سعید, خلیل, بخـشنده, عبدالمهدی, بهنام‌فر, کورش, سـیادت, سید عطااله, کاشفی‌پور, سید محمود , ‌اشرف جعفری, علی,

In order to investigate the effect of water deficit on yield and morphological characteristics of four alfalfa cultivars an experiment was conducted as a split plot in randomized complete block design with 3 replications in Agriculture Research Center of Khuzestan, Ahwaz, Iran, during 201l-2012. Main plots included irrigation regimes (normal irrigation, irrigation at 50% available water content...

Journal: :تحقیقات آب و خاک ایران 0
مهدی قیصری استادیار گروه مهندسی آب دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران محمد مهدی مجیدی دانشیار گروه مهندسی زراعت و اصلاح نباتات دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران محمد جواد زارعیان دانشجوی دکتری آبیاری و زهکشی دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران سید مجید میرلطیفی دانشیار گروه آبیاری و زهکشی دانشکدة کشاورزی دانشگاه تربیت مدرس، تهران ـ ایران حمزه دوکوهکی دانشجوی سابق ارشد آبیاری و زهکشی دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران سمیه امیری دانشجوی سابق کارشناسی مهندسی آب دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران

this study was conducted to investigate the effects of applying deficit irrigation on aboveground biomass, leaf area and root biomass for maize hybrid 704 single-cross. experimental treatments included 4 different irrigation levels, 5 growth stages with three replicates in a completely randomized factorial statistical design. aboveground biomass, leaf area and root biomass in 4 longitudinal sec...

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