نتایج جستجو برای: plots chemical control levels including hand weedingcontrol

تعداد نتایج: 3311645  

Journal: :حفاظت گیاهان 0
علی اصغر چیت بند سید بهنام کلالی علیرضا قائمی سعید جاهدی پور

introduction: weed competition is one of the major factors which limit sugar beet production in the world. weed – crop interactions are based on competition for water, nutrients and light and allelopathic effects may also play a small role. in sugar beet weed interference, all these factors are important too, but the light is of prime importance. due to the fact that a lot of weeds can grow abo...

بخشنده, عبدالمهدی, جعفری, سیروس, فتحی, قدرت‌اله, قرینه, محمد حسین, نمروری, معصومه ,

The effects of drought stress at different growth stages and nutrition systems were studied on yield and yield components of wheat (Chamran cv.). This experiment was carried out as split plot based on completely randomized blocks design with three replications at Research Farm of Ramin University of Agriculture and Natural Resources, Khuzestan province, Iran, during 2009-2010. Irrigation at thr...

2011
Ruo Yu Gu

An algorithm has been developed using Matlab that takes an image of a sketch of one or more functions, plotted on the xand yaxes, and converts it into an electronic plot, along with the set of equations and parameters that recreate the same plot. This is accomplished by extraction of the plot data, followed by data grouping based on three different heuristic methods (colour, slope and process o...

Journal: :Journal of Plant Protection Society 2023

Fall armyworm, Spodoptera frugiperda is an invasive and notorious pest of maize in many countries including Nepal. Several approaches integrated management have been adopted for its control, chemical being the most popular choice farmers’ fields. Efficacy such pesticides fall armyworm interpreted as per location, season, time crops. In some cases, insect pests are always increasing pesticide re...

To study the effects of delayed irrigation on growth and ratoon of millet (Pennisetum americanum cv. Nutrifeed) in the first harvest  and sorghum (Sorghum bicolor cv. Speedfeed), a field experiment was conducted as split plot based on a randomized complete blocks design with three replications in Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Iran, at summer 2014. Factors consisted...

2012
Khosro Mohammadi Majid Aghaalikhani

In order to Study the efficacy application of green manure as chickpea pre plant, field experiments were carried out in 2007 and 2008 growing seasons. In this research the effects of different strategies for soil fertilization were investigated on grain yield and yield component, minerals, organic compounds and cooking time of chickpea. Experimental units were arranged in splitsplit plots based...

2012
Khosro Mohammadi Amir Ghalavand Majid Aghaalikhani

In order to evaluation the effects of soil organic matter and biofertilizer on chickpea quality and biological nitrogen fixation, field experiments were carried out in 2007 and 2008 growing seasons. In this research the effects of different strategies for soil fertilization were investigated on grain yield and yield component, minerals, organic compounds and cooking time of chickpea. Experiment...

Journal: :journal of chemical health risks 0
razzagh mahmoudi health products safety research center, qazvin university of medical sciences, qazvin, iran ameneh ghojoghi department of food hygiene & aquatics, faculty of veterinary medicine, university of tabriz, tabriz, iran peyman ghajarbeygi health products safety research center, qazvin university of medical sciences, qazvin, iran

honey is the oldest natural food produced by honeybee and comprises wide variety of valuable ingredients including carbohydrate, proteins, minerals, vitamins, organic acids, polyphenols and flavonoids that contribute to well-known therapeutic properties. this review provide available scientific information on different ways of honey adulteration and chemical contamination with the certain focus...

Journal: :تولید گیاهان زراعی 0

recently, biological fertilizers extensively recommended because of over application of chemical fertilizer and their effects on environment and production resources. in order to study the effect of inoculate phosphate solubilization microorganisms (psm) and plant growth promoting rhizobacteria (pgpr) on nutrient use efficiency in corn [zea mays (l.) cv. sc 604] an experiment was conducted in 2...

Journal: :Bulletin of entomological research 2002
S J Castle N C Toscano N Prabhaker T J Henneberry J C Palumbo

Various insecticide use strategies including rotations, sequential use, and mixtures were evaluated experimentally on Bemisia tabaci (Gennadius) in California and Arizona (U.S.A.) cotton fields. Toxicological responses of adult B. tabaci were measured along with preimaginal densities and cotton yields from plots subjected to different insecticide regimens. Weekly monitoring for susceptibility c...

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