نتایج جستجو برای: yield reduction

تعداد نتایج: 674328  

Journal: :پژوهش آب در کشاورزی 0
سید حسن طباطبائی دانشیار گروه مهندسی آب، دانشکدهکشاورزی، دانشگاه شهرکرد. سارا مردانی نژاد دانشجوی کارشناسی ارشدآبیاری و زهکشی، دانشکده کشاورزی، دانشگاه همدان. حمید زارع ابیانه دانشیار گروه مهندسی آب، دانشکده کشاورزی، دانشگاه همدان.

the present research was conducted to study the effect of irrigation treatments on growth indices, yield, and water use efficiency of long green pepper (capsicum annuum l.) at the research greenhouse of shahrekord university. this experiment was done in a clay-loam soil using randomized design with four treatments i.e. 40%, 60%, 80%, and 100 percent of water requirement and three replications, ...

Journal: :پژوهش های حبوبات ایران 0
مظفر اسحاقی مهدی راستگو مجید پوریوسف رضا فتوت

to investigate the effect of sowing density and growth habit on yield, yield components and weed community of red bean an experiment was conducted at research farm of zanjan university, during 2009. the experiment carried out using factorial-split plot design in completely randomized block arrangement with three replications. the main plots, included three red bean cultivars (goli, sayyad and d...

Journal: :چغندرقند 0
محمدرضا جهاداکبر مربی پژوهشی مرکز تحقیقات کشاورزی اصفهان بابک بابایی مربی پژوهشی مؤسسه تحقیقات چغندرقند- جهانشاه بساطی مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه زهرا عباسی مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان

water and soil salinity in some regions of isfahan, east azerbaijan, and west azerbaijan provinces and also other parts of the iran are the main hindrance for crop planting. seeds of the tolerant crops to salinity such as cotton and sugar beet may have optimal germination and give acceptable performance if they become far from salt accumulation areas. to evaluate the effects of different planti...

African yam bean (Sphenostylis stenocarpa) is an underexploited legume with the potential of becoming an alternative food staple to alleviate the problem of food security. An assessment was carried out on the growth and yield of AYB affected by Telfairia mosaic virus (TeMV) Infection. Telfairia mosaic virus caused severe mosaic, leaf distortion and malformation on AYB. Analyses of results revea...

In order to study the drought stress in soybean (Glycin max L.), experiments with two stages and 25 soybean genotypes based on Simple Lattice Design 5×5 with two replications in two locations (normal and drought condition) were carried out in Bojnourd. Also evaluation of germination traits with three replications based on Completely Randomized Design has performed. Drought stress was applied in...

Journal: :journal of agricultural science and technology 2013
a. m. alomran i. i. louki a. a. aly m. e. nadeem

continuing agricultural expansion and urban development in saudi arabia, (located in an arid climate), together with an increased demands for more water supplies, calls for more efficient irrigation practices, and an increase in crop water productivity (cwp). throughout the present study, a deficit irrigation system was investigated for its impact on soil salinity, crop response factor (ky), cw...

Journal: :journal of agricultural science and technology 2010
f. shahbazi a. a. jafarzadeh f. sarmadian m. r. neyshabouri sh. oustan

regional impact studies of the future climate change effects are necessary because projected changes in meteorological variables differ from one region to another, and different climate systems can react in varied ways to the same changes. in this study, the effects of climate change on bioclimatic deficiency were compared in two cultivation methods (irrigated and rainfed) in a semi-arid region...

Journal: :Crop, Forage & Turfgrass Management 2020

Journal: :International Journal of Material Forming 2015

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