Pray Carl E, Huang Jikun, Hu Ruifa, Rozelle Scott
Department of Agricultural, Food and Resource Economics, Rutgers University, New Brunswick, NJ, USA.
Plant J. 2002 Aug;31(4):423-30. doi: 10.1046/j.1365-313x.2002.01401.x.
Bt cotton is spreading very rapidly in China, in response to demand from farmers for technology that will reduce both the cost of pesticide applications and exposure to pesticides, and will free up time for other tasks. Based on surveys of hundreds of farmers in the Yellow River cotton-growing region in northern China in 1999, 2000 and 2001, over 4 million smallholders have been able to increase yield per hectare, and reduce pesticide costs, time spent spraying dangerous pesticides, and illnesses due to pesticide poisoning. The expansion of this cost-saving technology is increasing the supply of cotton and pushing down the price, but prices are still sufficiently high for adopters of Bt cotton to make substantial gains in net income.
转基因抗虫棉在中国正迅速推广,以满足农民对能降低农药使用成本、减少农药接触量并腾出时间用于其他农活的技术的需求。根据1999年、2000年和2001年对中国北方黄河流域棉花种植区数百名农民的调查,超过400万小农户实现了每公顷增产,同时降低了农药成本、喷洒危险农药的时间以及农药中毒引发的疾病。这种节省成本技术的推广增加了棉花供应并压低了价格,但对于转基因抗虫棉的采用者来说,价格仍足够高,使其净收入大幅增加。