نتایج جستجو برای: plots chemical control levels including hand weedingcontrol

تعداد نتایج: 3311645  

Journal: :پژوهش های زراعی ایران 0
ویدا ورناصری قند علی پرویز رضوانی مقدم سرور خرم دل

introduction canary seed (phalaris canariensis l.) is a forage plant from poaceae family. this plant is drought tolerant. canary seed is originally a native to mediterranean region, which can be grown commercially in several parts of the word, especially in semi-arid conditions. increasing growth of population and lack of ability of pastures to satisfy the food requirement of animal has led to ...

2013
Khosro Mohammadi

Fertilization plays an important role in crop growth and soil improvement. This study was conducted to determine the best fertilization system for wheat production. Experiments were arranged in a complete block design with three replications in two years. Main plots consisted of six methods of fertilization including (N1): farmyard manure; (N2): compost; (N3): chemical fertilizers; (N4): farmya...

Journal: :چغندرقند 0
حمید نوشاد مسئول آزمایشگاه رحیم محمدیان موسسه تحقیقات اصلاح و تهیه بذر چغندرقند سمر خیامیم موسسه تحقیقات اصلاح و تهیه بذر چغندرقند

in drought stress condition, it is important to estimate the n and k requirement of sugar beet. a drought-tolerant sugar beet genotype, bp karaj, was evaluated in split plot factorial design based on a randomized complete block design with four replications at motahari research station, karaj, iran for three years. main plots were allocated to irrigation treatments including normal irrigation (...

Journal: :پژوهش های زراعی ایران 0
مجید رحیمی زاده احمد زارع فیض آبادی علی کاشانی

this study was conducted under cold temperate climate condition in khorasan during 2006-2008 growing seasons to determine the suitable wheat-based double cropping systems for increase nitrogen agronomic efficiency. a randomized complete block design in split-split plot arrangement with three replicates was used. main plots were crop rotation with five different rotations including wheat:wheat, ...

Journal: :تحقیقات آب و خاک ایران 0
آلاله متقیان همت اله پیردشتی محمدعلی بهمنیار ارسطو عباسیان

this fertility experiment was carried out using split plots based on a randomized complete block design of three replications in 2006 at sari agricultural sciences and natural resources university. the aim of the experiment was to investigate some macronutrient and micronutrient accumulation in leaves of different soybean cultivars as influenced by some organic fertilizer types and levels. main...

2014
Benjamin O. Knapp Joan L. Walker G. Geoff Wang Huifeng Hu Robert N. Addington

The desirable structure of longleaf pine forests, which generally includes a relatively open canopy of pines, very few woody stems in the mid-story, and a well-developed, herbaceous ground layer, provides critical habitat for flora and fauna and contributes to ecosystem function. Current efforts to restore longleaf pine to upland sites dominated by second-growth loblolly pine require informatio...

ژورنال: علوم آب و خاک 2013
زهرا احمد آبادی, , سپیده رحیمی آلاشتی, , محمد علی بهمنیار , ,

In order to investigate the effects of municipal solid waste enriched with mineral fertilizers on some soil physical properties and lead (Pb) and chromium (Cr) concentration in plant organs of spinach, a field experiment was carried out in a factorial arrangement based on the randomized complete block design with three replications in 2008. The main plot included four levels of fertilizer, cont...

Journal: :به زراعی کشاورزی 0
جلال جلیلیان استادیار گروه زراعت، دانشکدۀ کشاورزی، دانشگاه ارومیه، ارومیه - ایران

to determine the effect of farm slopes on yield and some agronomic traits of wheat under different fertilizer treatments, an experiment was performed as split plot based on randomized complete block design with three replications in piranshahr in 2011-2012. treatments consisted of farm slope at four levels: (zero, 3, 6 and 10 %) as the main plots and combination of different fertilizer at five ...

Journal: :Journal of Tekirdag Agricultural Faculty 2021

Increasing plant production by protecting the environment is one of main goals today's agriculture. On other hand, use both inorganic and organic fertilizers becoming increasingly extensive. This study was carried out in field conditions to determine effects fertilization on yield quality characteristics industrial tomato (Solanum lycopersicum L., cv. Heinz 1015 F1). For this purpose, contents ...

Journal: :پژوهش های تولید گیاهی 0
ریحانه عسگرپور - رضا قربانی عضو هیات علمی دانشگاه فردوسی مشهد نرگس پورطوسی سازمان پارکها و فضای سبز شهد علیه گنجی - فرنوش فلاح پور -

background and objectivescommon privet (ligustrum vulgare) is one of the most important plants in landscapes of iran. this plant is adaptable to unfavorable environmental conditions, so that is cultivated widespread in urban landscape. invasion of dodder to common privet caused problems for landscape management in mashhad city in recent years. dodder is an obligate parasite of many plant famili...

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