نتایج جستجو برای: plots chemical control levels including hand weedingcontrol

تعداد نتایج: 3311645  

2003
J. Baar

The effects of litter and humus layers on the occurrence of ectomycorrhizal sporocarps in 64 plots in six stands of Pinus sylcestris were studied. In 1990, litter and humus layers and herbaceous vegetation were removed ('sod-cutting') in plots in stands of Pinus sylvestris of different age. Removed litter and humus were added on to existing ectorganic layers ( 'sod-addition') in plots in young ...

Journal: :علوم گیاهان زراعی ایران 0
محمد سیبی دانشجوی کارشناسی ارشد زراعت، دانشگاه آزاد اسلامی، واحد اراک، اراک، باشگاه پژوهشگران جوان، اراک، ایران. محمد میرزاخانی استادیار، دانشگاه آزاد اسلامی، واحد فراهان، گروه زراعت، فراهان، ایران مسعود گماریان استادیار، دانشگاه آزاد اسلامی، واحد اراک، استادیارگروه زراعت و اصلاح نباتات، اراک، ایران سید حسام الدین یعقوبی دانشجوی کارشناسی ارشد زراعت، دانشگاه آزاد اسلامی، واحداراک، ایران

a field study was carried out at the islamic azad university of arak in 2010 to find out the effects of salicylic acid and water deficit stress on oil yield and some physiological characteristics of different varieties of sunflower. the experiment was laid out in a factorial split plot based on a randomized complete block design with four replications. treatments consisted of water stress in th...

ژورنال: علوم آب و خاک 2011
حسن پاک نیت, , سید عبدالرضا کاظمینی, , فرود صالحی, , محمدجعفر بحرانی, , نجفعلی کریمیان, ,

Crop residues are beneficial substances that can bring about important changes in soil biological, chemical and physical properties and can also increase or stabilize crops yield. A field experiment was carried out at Research Station of College of Agriculture, Shiraz University, Shiraz, Iran, to determine the effects of wheat (Triticum aestivum L.) residue rates in combination with N levels on...

2007
Travis M. Hinkelman Susan C. Loeb

Daytime refuges are important to nocturnal rodents for protection from predators and environmental extremes. Because refuges of forest-dwelling rodents are often associated with woody debris, we examined refuge use by 37 radio-collared Peromyscus gossypinus (cotton mice) in experimental plots with different levels of woody debris. Treatment plots had six times (≈ 60 m/ha) the volume of woody de...

lak, shahram, matrudi, mohamad,

In order to effect of mycorrhiza fungi on the quantitative and qualitative traits of cowpea in different irrigation intervals, this research was carried out in 2017 in Khorramshahr as split plot based on randomized complete block design with four replications. The treatments consisted of different irrigation intervals at four levels of 55, 80, 105 and 130 mm evaporation from class A evaporation...

Some cultivars of grapevine have very compact cluster which adversely affect its quality and marketability. ‘Yaghouti’ is a commercial early table grape cultivar that has very compact clusters. The present study was conducted to assess the effects of mechanical and chemical thinning as well as GA3 application on cluster morphology and berry size of grapevine cv. ‘Yaghouti’. Treatments were chem...

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

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

Journal: :journal of food quality and hazards control 0
m.r. koushki department of food technology research, national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran m.h. azizi [email protected] p. koohy-kamaly department of food technology research, national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran m. azizkhani department of food sciences and technology, faculty of agriculture, tarbiat modares university, tehran, iran

background: edible films and coatings have potential benefits for food packaging, particularly meat products. these coatings prevent weight loss and texture changes during shelf life by reducing moisture loss in fresh and frozen meat products. in this study, effect of calcium alginate edible coating on microbial and chemical properties of refrigerated lamb meat over a period of  5 days was inve...

Journal: :تحقیقات آب و خاک ایران 0
یاسر اسماعیلیان مصطفی حیدری احمد قنبری

to study the effects of zabol wastewater treated with two kinds of fertilizer (manure and chemical fertilizer) application vs use of ordinary water on grain yield and yield components in corn (kosc704) a field experiment was conducted at the university of zabol, iran during 2007 growing season. the statistical plan selected was a split plot one of three replications. the treatments were compris...

Journal: :علوم گیاهان زراعی ایران 0
حسین مقدم پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه زراعت و اصلاح نباتات، تخصص:دکتری اکولوژی گیاهان زراعی محمد دشتکی کارشناس ارشد مراد محمدی دانشجوی ارشد

to evaluate the effects of phosphorous, iron and zinc fertilizers on quantity and quality of turnip, a field experiment was conducted in 2009. the experiment treatments arranged as split plot factorial based on a completley randomized design with 4 replications in the research farm of the university of tehran (karaj-iran). the main factor including three levels of phosphorous (super phosphate t...

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