نتایج جستجو برای: weed killers
تعداد نتایج: 12363 فیلتر نتایج به سال:
Weed infestations and associated yield losses require effective weed control measures in soybean and sugar beet. Besides chemical weed control, mechanical weeding plays an important role in integrated weed management systems. Field experiments were conducted at three locations for soybean in 2013 and 2014 and at four locations for sugar beet in 2014 to investigate if automatic steering technolo...
The bacteria that infect humans and cause cholera are themselves infected by viruses, which have the potential to influence the course of a cholera infection.
1. Forum: Loud-but Not Yet Clear. Environ Health Perspect 106:A222-A223 (1998). 2. Holzman D. Focus: Plane pollution. Environ Health Perspect 105:1300-1305 (1997). 3. Health Council of the Netherlands: Committee on Noise and Health. Noise and Health [Geluid en gezondheid]. nr 1994/15E. The Hague:Health Council of the Netherlands, 1994. 4. IEH. The Non-auditory Effects of Noise. Leicester, UK:ln...
This paper presents a mixed-level factorial design for scalability analysis of the Zereal Massively Multiplayer Game Simulator. The selected factors are number of killers, monsters and CPUs in addition to the killer and monster vision radius. The analysis show that the factors explain approximately 85% of the model (measured in square of errors), which is surprisingly good since the simulation ...
In order to evaluate the effect of different periods of weed interference and weed control on plant height, seed yield and yield components of common bean, an experiment was conducted at the Agricultural and Natural Resources Research Center of Hamadan, Iran, in 2011. The experiment was a randomized complete blocks design with 3 replications. Treatments included two groups of weed interference ...
Parthenium hysterophorus L. (congress grass, congress weed, carrot weed, wild feverfew, the “Scourge of India”) is an exotic weed that was accidentally introduced in India in 1956 through imported food grains.[1] It has become a common weed causing dermatitis of epidemic proportions.[2] The epithet “congress weed” refers to the US congress (who allocated the shipment for Pune, India).[3] In Pun...
Martin M. Williams II Corresponding author. U.S. Department of Agriculture—Agricultural Research Service, Invasive Weed Management Research, University of Illinois, 1102 S. Goodwin Ave., Urbana, IL 61801; [email protected] The critical period for weed control (CPWC) identifies the phase of the crop growth cycle when weed interference results in unacceptable yield losses; however, the effect of ...
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