نتایج جستجو برای: would result in higher land equivalent ratio ler 125 for both sorghum fodder yield

تعداد نتایج: 19663192  

ژورنال: علوم آب و خاک 2008
آلیاری , هوشنگ , جوانشیر, عزیز , راعی , یعقوب , قاسمی گلعذانی, کاظم , محمدی, ابوالقاسم ,

Concerning the effects of increasing the species number on the maintenance of ecological stability and agricultural ecosystems sustainability, two field studies were conducted in 2002 and 2003 to evaluate the effects of plant population densities on soybean and sorghum intercropping at the Research Center, the Faculty of Agriculture, Tabriz University, Tabriz, Iran. Cultural pattern was an addi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

Journal: :پژوهش های حبوبات ایران 0
فرانک نوربخش علیرضا کوچکی مهدی نصیری محلاتی

introduction intercropping as a common method in sustainable agricultural systems, plays an important role in increasing productivity and yield stability to improve utilization of resources )alizadeh et al., 2010). studies in different countries showed that intercropping causes increase in diversity, production and more efficient use of water resources, land, labor and nutrients and also reduce...

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...

In order to evaluate technical and economical aspects of mixed cropping grass pea (Lathyrus sativus L.) with barley (Hordeum vulgare L.) and triticale (×Triticosecale), an experiment was conducted at Khodabandeh Dryland Research Station during 2006-2008. The field experiment was arranged in a randomized complete blocks design with 9 treatments and four replications. Experimental treatments were...

2013
I. B. Mohammed

Six cowpea genotypes (Danila, IT96D-772, IT90K-277-2, IT95K-1091-3, IT96D-740, IT96D-757) were intercropped with a local millet cultivar using four row arrangements (1:1, 1:2, 2:2 and 2:4 millet to cowpea rows) in a field experiment conducted at Minjibir near Kano in the Sudan savanna ecological zone of Nigeria during the 1999 and 2000 wet seasons. Cowpea genotypes and row arrangement had no ef...

Journal: Desert 2007
D. Mazaheri J. Saba K. Jamshidi,

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...

2002
Ellen McFadden

Intercropped corn (Zeu mays L.) and soybean [Glycine mux (L.) Merr.] may produce more total yield per hectare than either grown separately, ie., land equivalent ratio (LER) >l. Low N fertility, limited moisture, and weed competition have each been reported to result in high land equivalent ratios. Thus it was hypothesized that intercropping advantages were greater under stress conditions. The o...

Journal: :بوم شناسی کشاورزی 0
علیرضا کوچکی مهدی نصیری محلاتی حسن فیضی شهرام امیرمرادی فرزاد مندنی

in order to study the effect of strip intercropping of maize (zea mays l.) and bean (phaseolus vulgaris l.) on the dry matter yield and land equivalent ratio (ler) in weedy and weed free treatments, an experiment was conducted at the agricultural station of college of agriculture, ferdowsi university of mashhad, iran. treatments were strip width of 2, 3, 4 and 5 rows and sole cropping of each c...

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 ...

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