نتایج جستجو برای: Land equivalent ratio

تعداد نتایج: 743286  

Journal: :پژوهش در گیاهان زارعی 0
رقیه فتح‏ اله‏ زاده دیزجی دانش آموخته کارشناسی ارشد، دانشگاه آزاد اسلامی، واحد تبریز بهرام میرشکاری دانشیار گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی، واحد تبریز

intercropping systems lead to reduce weeds population and their biomass. in order to study effect of marigold (calendula officinalis) and mungbean (vigna radiata) intercropping in different sowing times on yield and weeds control a factorial experiment based on randomized complete block design was performed in islamic azad university, tabriz branch, iran, during 2012 in three replications. stud...

Journal: :journal of crop nutrition science 0
seyed nader mosavian department of agriculture, payame noor university, p.o. box: 19395-3697, tehran, iran. seyed alireza seyed mohammadi department of plant breeding, ahvaz branch, islamic azad university, ahvaz, iran.

this research aimed at investigating the effect of different levels of nitrogen and planting patterns on dry matter production and growth physiological indices in intercropping maize and sunflower. to do this a split plot experiment carried out based randomized complete block design with three replications in research field of shushtar islamic azad university. the main plot included three level...

Journal: :desert 2012
kh jamshidi

in order to evaluate the yield, yield components and protein contents of two wheat cultivars (zarrin and gaspard) in sole cropping and intercropping systems,an experiment was conducted using replacement serious technique and different combinations of intercropping with high plant density and optimal of each cultivar. a factorial experiment was conducted in the form of randomized complete block ...

Journal: :international journal of advanced biological and biomedical research 2014
sedighe haghparast naser mohammadian roshan hamid reza dorodian

intercropping systems compared to monoculture systems can more efficiently use the existing resources which ultimately will lead to increased plant performance. therefore, to evaluate the benefits of intercropping maize and beans and assess its impact on yield and yield’s component, an experiment was conducted in factorial design with randomized complete block design in three replication, in 20...

Journal: :پژوهش های حبوبات ایران 0

introduction sustainability of agricultural systems may improve due to intercropping as a result of diversity increasing. marigold (calendula officinalis) is a major medicinal plant from asteraceae family, though weeds suppress it because of lower competitiveness against weeds. mungbean (vigna radiata) is a pulse crop from fabaceae family and is one of the major nutritive sources especially in ...

Journal: :پژوهش های حبوبات ایران 0
علیرضا کوچکی حسام الدین سلوکی ثنا کاربر

introduction weed infestation causes an extremely reduction of crops yield. on the other hand, increasing the diversity of crops in agro-ecosystems will change the biomass distribution of weeds community, thereby reducing the number and density of different weed species. weed management in the past few decades has been in conflict with ecological principles and sustainability of the production ...

Journal: :desert 0
k. jamshidi instructor, faculty of agricuture,zanjan university, zanjan, iran d. mazaheri professor, faculty of agricuture, university of tehran, karaj, iran j. saba assistant professor, faculty of agricuture, zanjan university, zanjan, iran

abstract to find out how maize and potato can grow and develop in an intercropping system rather than each grown alone in a sole cropping system the following factorial experiment was performend in the frame-work of a randomized complete block three replications in the experimental farm of the faculty of agriculture, zanjan university in year 2004. different potato to maize ratios of (1:0), i.e...

Journal: :تولید گیاهان زراعی 0
علی نخ زری مقدم عضو هیات علمی/ دانشگاه گنبد کاووس علی راحمی کاریزکی عضو هیات علمی دانشگاه گنبد کاووس

background and objectivesintercropping or simultaneous growing of two or more crops on the same piece of land has the potential of enhanced ecosystem productivity. in a cereal-legume intercropping system, an increase in cereal and a decrease in legume intercrop yield is reported. several indices such as land equivalent ratio (ler), relative crowding coefficient (k), competitive ratio (cr), aggr...

A. Biabani, M. Hashemi S.J. Herbert

Broader environmental tolerance associated with mixed population of soybean (Glycine max Merr.) cultivars may increase soybean yield potential and play a significant role in yield stability. A field study was carried out to assess whether intercropping of two commonly used cultivars of soybean with different morphological characteristics may increase seed yield in Iran. A split-plot design was ...

Journal: :international journal of advanced biological and biomedical research 2015
farzane jenani-oskooi safar nasrollahzadeh mohammad reza shakiba adel dabbagh mohamadi nasab

objective: for investigation of intercropping of maize and faba bean, an experiment was conducted in research station of agriculture faculty of tabriz university during growing season of 2013. methods: experimental design was randomized complete block design with three replications and seven treatment. treatments included one row intercropping (1:1), 4 strip intercropping pattern with ratios of...

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