نتایج جستجو برای: weed dry mater

تعداد نتایج: 116513  

عبدالهی, عبدالوهاب , محمدی, رضا ,

  The response of bread wheat genotypes to weed interference was evaluated under dryland conditions. An experiment was conducted with 26 genotypes of bread wheat and two known cultivars, Sardari and Azar2, as checks in a strip plot (Split block) arrangement based on Randomized Complete Block Design (RCBD) with four replications in 2002-03 at Dryland Agricultural Research Institute, Srarood, Ker...

In order to investigate the effects of plant density, time and number of weed control on yield and yield components on corn hybrids, a factorial experiment in completely randomized blocks design with 3 replications was conducted in 2011 growth season at Research farm of College of Agriculture, University of Shahid Bahonar, Kerman. Weed control treatments were including: weed control during corn...

Journal: :International Journal of Plant and Soil Science 2023

The present investigation was conducted at Agronomy Research Farm, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.) during Rabi season 2019-20. experiment laid out in Factorial Randomized block design with three replications keeping four fertility levels viz., 100% RDF-IF (150 kg/h), 125% (25% through FYM), RDF + 25%RDN FYM, 75%RDF-IF+25%RDN FYM weed man...

Journal: :بوم شناسی کشاورزی 0
سیده ثمانه هاشمی فائزه زعفریان اسفندیار فرهمندفر میلاد باقری شیروان

introduction amount and vertical distribution of leaf area are essential for estimating interception and utilization of solar radiation of crop canopies and, consequently dry matter accumulation (valentinuz & tollenaar, 2006). vertical distribution of leaf area is leaf areas per horizontal layers, based on height (boedhram et al., 2001). above-ground biomass is one of the central traits in func...

امینی دهقی, مجید , باغبانی آرانی , ابوالفضل , زند, اسکندر,

  In order to reduce the herbicide rate, the combination of cultivation and eradicane herbicide application was tested under field conditions. Treatments including tillage practices of without cultivation, one cultivation and two cultivation and eradicane herbicide application levels of 0, 1.5, 3, 4.5, 6 Lha -1 were tested . Eradicane herbicide was used before plantation. Cultivation treatments...

1997
Kristian Kristensen Ilse A. Rasmussen

An overview of a decision support system for growing malting barley without use of pesticides is given. One module in this system is the decision support system for mechanical weed control in malting barley. The system is constructed as a Bayesian network. The Bayesian network is used because it gives the possibility to include information on uncertainty in an easily understandable form. The mo...

Journal: :پژوهش های تولید گیاهی 0
المیرا محمدوند علیرضا کوچکی دانشگاه فردوسی مشهد مهدی نصیری محلاتی دانشگاه فردوسی مشهد عباس شهدی کومله موسسه تحقیقات برنج کشور- رشت زینب اورسجی استادیار گروه تولیدات گیاهی دانشکده علوم کشاورزی و منابع طبیعی دانشگاه گنبد کاووس

background and objectives: early watergrass (echinochloa oryzoides) is considered as a new-introduced species and then as a potential invader. investigation of competitive traits of this species, in comparison with barnyardgrass (e. crus-galli), one of the most important weeds in rice fields of guilan province, would be useful to determine its spreading possibility as an aggressive weed. theref...

Journal: :تولید گیاهان زراعی 0

according to the contradictory reports of researchers, tillers may have positive or negative effect on wheat yield. thus, this study was conducted to investigate the role of tillers on wheat yield under two row spacing of 12.5 and 25 cm and four plant densities of 125, 250, 375 and 500 plants per m2, at gorgan university of agricultural sciences and natural resources farm in anbare-ololum reign...

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: :Anais da Academia Brasileira de Ciencias 2015
Matheus G Silva Orivaldo Arf Paulo E Teodoro

The objective of this study was to investigate the effect of interaction between nitrogen topdressing and different application ways (active ingredients) a.i. fluazifop-p-butyl + fomesafen in weed control and agronomic performance of common bean. The experiment was conducted during winter 2003 in Selvíria/MS. The experimental design used was a randomized block design with four replications in a...

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