نتایج جستجو برای: weed combating
تعداد نتایج: 18154 فیلتر نتایج به سال:
Controlling weeds in organic farming systems requires the use of many techniques and strategies in order to achieve economically acceptable weed control and yields. Weeds can always be pulled or cut out, but the question is simply how much can a grower spend in terms of time and money to reduce weed pressure. The more a grower is able to reduce weed pressure (seed and perennial propagules) the ...
V. D. Damsteegt, E. N. Postnikova, and A. L. Stone, Foreign Disease-Weed Science Research Unit, ARS, USDA, Frederick, MD 21702; M. Kuhlmann, University of Maryland, College Park; C. Wilson, University of Wisconsin, Madison; A. Sechler and N. W. Schaad, Foreign Disease-Weed Science Research Unit, ARS, USDA, Frederick, MD 21702; R. H. Brlansky, CREC, IFAS, UFL, Lake Alfred, FL 33850; and W. L. Sc...
In order to study the intercropping of basil (Ocimum basiilicum L.) and cowpea (Vigna unguiculata L.) under different levels of nitrogen supply and weed competition conditions, a field experiment was carried out in split-split plot arrangement based on a randomized complete block design with three replications during 2010 and 2011 at Sari Agricultural Science and Natural Resources University. ...
Weeds compete with crops for belowground resources; however, there is little detailed information on relative dynamics of soil water during competitive interactions. This research was conducted to determine changes in soil-water storage (CSWS) in rain-fed no-tillage corn (Zea mays L.) production in the presence or absence of weed competition over two droughty growing seasons. Weeds at the exper...
in order to investigate the effective factors on the reduction of rain-fed wheat yield, an experiment in 45 fields was conducted in the township of bandar-gaz in 2012. in this research, all information such as crop management operations, seedbed preparation, cultivar, site preparation, seed sowing, weed combating, planting and harvesting issues, time of toxicant spraying, used seed rate were co...
continuous desertification of arable lands mandates use of low quality/ saline water for irrigation, especially in regions experiencing water shortage. using low quality/ saline water for irrigation imposes more stress on plants that are already under stress in these regions. thus, a logical solution will be to find a salt/ drought-tolerant plant species that will survive/sustain under such str...
Returns of an individual enterprise in the short term are usually measured through a gross margin budget, which is determined by subtracting factors such as the cost of weed control (both herbicide and non-herbicide) and other inputs (eg seed and fertiliser) from gross income (calculated as crop yield multiplied by grain price). Crop yield is directly influenced by weed density, which itself is...
laboratory experiments were performed to determine the effect of various scarification treatments at four temperature regimes on germination of licorice seeds . a randomized complete block design with four replications was used. germination counts were made every day for 2 weeks. at 50c, none of the chemically and mechanically scarified and non scarified seeds germinated. at 15, 25, and 350...
Grassland diversity can support sustainable intensification of grassland production through increased yields, reduced inputs and limited weed invasion. We report the effects of diversity on weed suppression from 3 years of a 31-site continental-scale field experiment.At each site, 15 grassland communities comprising four monocultures and 11 four-species mixtures based on a wide range of species...
Saru Chandrakar, "Combating Terrorism using Remote Sensing" in NCETET, Aurangabad, 2008 Saru Chandrakar, "Detection of Explosives using Remote Sensing", Saru Chandrakar, "Combating Catastrophic Terrorism using Remote Sensing", Saru Chandrakar, "A Hybrid approach with Infrared Radiation" Saru Chandrakar "Combating Man-Made Disaster using Remote Sensing", ICETET 2009(In Press) Remote Sensing and ...
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