نتایج جستجو برای: for determining sugar beet water requirements

تعداد نتایج: 10652664  

Journal: :بوم شناسی کشاورزی 0
رضا دیهیم فرد مهدی نصیری محلاتی علیرضا کوچکی

introduction crop productivity is highly constrained by water and nitrogen limitations in many areas of the world (kalra et al., 2007). therefore, there is a need to investigate more on nitrogen and water management to achieve higher production as well as quality. irrigated sugar beet in the cropping systems of khorasan province in northeastern of iran accounts for about 34% of the land area un...

Journal: :چغندرقند 0
محمدرضا جهاداکبر هیئت علمی مرکز تحقیقات کشاورزی اصفهان حمیدرضا ابراهیمیان هیئت علمی مرکز تحقیقات کشاورزی اصفهان منوچهر ترابی هیئت علمی مرکز تحقیقات کشاورزی اصفهان جواد گوهری عضو هیئت علمی مؤسسه تحقیقات چغندرقند

in some regions of isfahan, although there is no soil and water salinity limitations, quality of sugar beet root is very low because of using high amount of irrigation water. a study was conducted to determine the relation between low irrigation and quality and quantity of sugar beet. in this study, a line source irrigation system for six water use treatments (from 10770 to 8554 m3/hec) was use...

2013
Paola Vastarelli Anna Moschella Daniela Pacifico Giuseppe Mandolino

Beta vulgaris genus comprises wild and cultivated subspecies. The “maritima” subspecies is formed by wild or weedy accessions, well adapted to low-water potential environments; it was previously shown that B. vulgaris ssp. maritima has mechanisms of osmotic adjustment more effective than the cultivated B. vulgaris ssp. vulgaris. The response to a progressive lowering of soil potential was compa...

Journal: :بوم شناسی کشاورزی 0
رضا حیدری پور مهدی نصیری محلاتی علیرضا کوچکی احمد زارع فیض آبادی

optimum uses of water and nitrogen resources are the most important factors in agricultural systems due to limitations of agricultural inputs especially water. in order to investigate the effect of different levels of nitrogen fertilizer and irrigation on efficiency and productivity of water consumption in three crop (sugar beet, corn and sesame) an experiment was carried out as strip split plo...

Journal: :چغندرقند 0
رحیم محمدیان مرکز تحقیقات کشاورزی و منابع طبیعی خراسان سید یعقوب صادقیان مطهر هیئت علمی موسسه تحقیقات اصلاح و تهیه بذرچغندرقند محمد مقدم واحد دانشکده کشاورزی دانشگاه تبریز حمید رحیمیان دانشکده کشاورزی دانشگاه تهران

this study was conducted over a three-year period (1998, 1999 and 2000) to evaluate some drought tolerance indices and their relations with sugar yield in some sugar beet genotypes under early season drought and non-drought conditions. the experimental design was a split plot with a randomized complete block. the main plots consisted of two irrigation regimes: non-stress and water stress in ear...

2004
D. Choluj R. Karwowska M. Jasińska G. Haber

Growth response of sugar beet plants to drought stress applied at different growth stages has been investigated. Cessation of watering imposed moderate water stress and resulted in the reduction of the relative water content of young and old leaves maximally by 6%. However, water content in taproot was more drastically decreased than in the shoot. Water withholding reduced dry ma�er accumulatio...

Journal: :پژوهش های تولید گیاهی 0
رضا دیهیم فرد استادیار گروه کشاورزی اکولوژیک پژوهشکده علوم محیطی دانشگاه شهید بهشتی، تهران سجاد رحیمی مقدم دانشگاه شهید بهشتی

background and objectives: sugar beet (beta vulgaris l.) is the major crop in khorasan province which is mainly grown in spring. however, autumn sowing has a lot of advantages including lower crop water requirement and higher water use efficiency. accordingly, this research was performed to compare the yield of storage organ in spring and autumn-sown sugar beet and determine the most appropriat...

2017
A. A. M. Habeeb A. E. Gad A. A. EL-Tarabany M. M. Mustafa M. A. A. Atta

Sugar beet pulp is a by-product from the processing of sugar beets into sugar. Beet pulp is extracted grounded sugar beet. It is used as livestock feed and it can be fed fresh, dried and ensiled (fermented beet pulp). Sugar beet pulp is a by-product from the processing of sugar beet which is used as fodder for cattle and other livestock. It is supplied either as dried flakes or as compressed pe...

Journal: :چغندرقند 0
مهدی شهابی فر دکترای علوم و مهندسی آبیاری از دانشگاه تربیت مدرس ، عضو هیئت علمی و رئیس بخش تحقیقات آبیاری و فیزیک خاک مؤسسه تحقیقات خاک مهدی کوچک زاده عضو هیئت علمی گروه آبیاری دانشگاه تربیت مدرس محسن محمدزاده عضو هیئت علمی گروه آمار دانشگاه تربیت مدرس سید مجید میرلطیفی عضو هیئت علمی گروه آبیاری دانشگاه تربیت مدرس

for the purposed water resources management, irrigation scheduling, water usage optimization and gaining maximum yield two step fao method was applied to determine the water requirement (evapotranspiration) of sugar beet.  in this paper reference evapotranspiration were computed from recorded meteorological data at 38 weather stations using the hargreaves-samani method; and then through applyin...

2010
P. A. Harris L. B. Jeffcott H. Meyer

INTRODUCTION 152 GUIDE TO TYPICAL FEEDSTUFFS 153 Cereals, sugar beet and oil seeds as feedstuffs 154 Major cereals fed to horses 154 Oil seeds 156 Vegetable oils 156 Forages and other fiber sources 158 Hay 158 Soaking hay before feeding 159 Semi-wilted forages 159 Silage 159 Straw 160 Hydroponics 160 Soya hulls and sugar beet pulp 161 Methods of feed processing 161 Feed storage 162 Feedstuffs a...

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