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OTHER RELATED PAPERS(Regulation, Ethics, Corporate Monopolies, Social impacts etc.)35,000,000 metric tons. During the 1990s, there was a significant agriculturetransformation in the country, motorize by the adoption of transgenic crops(soybean, maize, and cotton) under the no-tillage system. The expansion of thismodel has been spread not only in the Pampas but also in very rich areas withhigh biodiversity, opening a new agricultural border to important eco-regions likethe Yungas, Great Chaco, and the Mesopotamian Forest. Transgenic cropping isa powerful technology. This produced relevant transformations over theenvironment and society where it is allowed. Migration, concentration ofagribusiness, and loss of food sovereignty are some of the social results.Landscape transformation in the rural sector is evident, and the appearance oftolerance weeds to glyphosate is a reality. Nutrient depletion, soilstructuredegradation, potential desertification, and loss of species are otherconsequences on the environmental level.www.bch.cbd.int/database/attachedfile.aspx?id=153843. Duke, S.O. (2005) : Taking stock of herbicide-resistant crops ten yearsafter introduction. Pest Management Science 61: 211–218Since transgenic, bromoxynil-resistant cotton and glufosinate-resistant canolawere introduced in 1995, planting of transgenic herbicide-resistant crops hasgrown substantially, revolutionizing weed management where they have beenavailable. Before 1995, several commercial herbicide-resistant crops wereproduced by biotechnology through selection for resistance in tissue culture.However, non-transgenic herbicide-resistant crops have had less commercialimpact. Since the introduction of glyphosate-resistant soybean in 1996, andthe subsequent introduction of other glyphosate-resistant crops, whereavailable, they have taken a commanding share of the herbicide-resistantcrop market, especially in soybean, cotton and canola. The high level ofadoption of glyphosate-resistant crops by North American farmers has helpedto significantly reduce the value of the remaining herbicide market. This hasresulted in reduced investment in herbicide discovery, which may beproblematic for addressing future weed-management problems. Introductionof herbicide-resistant crops that can be used with selective herbicides hasapparently been hindered by the great success of glyphosate-resistant crops.Evolution of glyphosate-resistant weeds and movement of naturally resistantweed species into glyphosate-resistant crop fields will require increases inthe use of other herbicides, but the speed with which these processescompromise the use of glyphosate alone is uncertain. The future of herbicideresistantcrops will be influenced by many factors, including alternativetechnologies, public opinion and weed resistance. Considering the relativelyfew recent approvals for field testing new herbicide-resistant crops and recentdecisions not to grow glyphosate-resistant sugarbeet and wheat, theintroduction and adoption of herbicide-resistant crops during the next 10 yearsis not likely to be as dramatic as in the past 10 years.(247)