This week's "Science" magazine published a report that farmers in China have significantly reduced the amount of pesticides used, increased rice yield, and effectively reduced pesticide poisoning when farmers use pesticides. This is the first report in the world to demonstrate the impact of genetically modified rice on farmland production. The study was conducted by Huang Jiji, director of the Agricultural Policy Research Center of the Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences and Professor Hu Ruifa, Professor Scott Rozelle of the University of California, Davis, and Professor Carl Pray of Rutgers University. Through experimental comparison, the scientists found that a significant difference between transgenic rice and non-transgenic rice is the difference in pesticide application amount. The results showed that farmers who planted transgenic insect-resistant rice had less than one pesticide per quarter (0.5 times), and households planting non-GM rice had 3.7 pesticides per quarter. In the plots where genetically modified rice was planted, 62% did not use pesticides, and nearly 90% of the transgenic rice plots were not applied pesticides that treat mites. Compared with the cultivation of non-transgenic rice, the adoption of transgenic insect-resistant rice enabled farmers to reduce 16.77 kg of pesticide per hectare of farmland, which is equivalent to a reduction of 80% of pesticide application. There are also significant differences in the yield of the two rice varieties. The average yield of transgenic rice is 6%-9% higher than that of the corresponding non-transgenic rice. The scientists found that this was mainly due to the fact that the transgenic insect-resistant rice was more effective in preventing and controlling the damage of aphids during the production process. Transgenic insect-resistant rice reduced rice farmers' allergies and poisoning due to the application of pesticides. In 2002 and 2003, for example, none of the farmers who planted transgenic rice reported poisoning due to pesticides. Among the farmers who planted both transgenic rice and non-GM rice, 7.7% and 10.9% of the farmers in the two years reported that they were When pesticides were used, they were poisoned. Among the farmers who planted non-genetically modified rice, 8.3% and 3% of the farmers in two years were poisoned by pesticides. Huang Ji?j said: “Planting transgenic insect-resistant rice has a positive impact on rice production and farmers' health. Our results show that agricultural biotechnology can promote China’s agricultural development, increase food security, increase farmers’ income, and improve farmers’ health. In the field of productive testing in China, the performance of genetically modified insect-resistant rice was encouraging. The study of Chinese aesthetics found that in the above-mentioned plots, farmers drastically reduced the amount of pesticides used, increased rice yield, and effectively reduced pesticide use. Related poisoning phenomenon. This provides evidence for increasing the income of peasants and increasing production of genetically modified food crops. The research results jointly conducted by Huang Ji?j, Hu Ruifa of the Agricultural Policy Research Center of the Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Scott Rozelle of the University of California, Davis, and Carl Pray of Rutgers University, U.S.A. On the 29th of the issue of Science. The paper titled "The Impact of Transgenic Insect-Resistant Rice on China's Rice Production and Farmers' Health" is the world's first research article to demonstrate the impact of genetically modified rice on farmland production. China’s biotechnology development program has successfully developed some new varieties of genetically modified rice. Since the middle of the 1990s, many GM rice varieties have entered and passed intermediate trials and environmental release tests, of which four species entered production trials in 2002. However, there is still no commercial approval of any GM rice varieties. One of the researchers, Professor Huang Ji?j, said: “A number of factors affect the commercialization of genetically modified grain crops. One of the important reasons is whether the lack of genetically modified food crops can increase the income of farmers and improve production.†To explore this issue, he In cooperation with its collaborators, eight villages in China that carried out transgenic insect-resistant rice production trials in 2002 and 2003 were investigated to analyze the impact of genetically modified rice on pesticide application, rice yield, and farmers' health problems related to pesticide application. It is reported that they have conducted in-depth analysis of the transgenic insect-resistant rice varieties that are currently in productive trials, namely the transgenic Shanyou 63 and II-Yuming 86. These two varieties were transferred to the Bt gene and CpTI gene, respectively, for the resistance to drill pests such as borer stemworms and insects of the order Pestoptera. Their random samples were from three types of farm households: fully adopted households (only genetically modified rice), partially adopted households (both transgenic and non-genetically modified rice) and unaccepted households (only non-transgenic rice). Their research shows that the yield of transgenic insect-resistant rice is 6%-9% higher than that of non-transgenic rice, and the amount of pesticide applied is reduced by 80%. It also reduces the adverse impact on farmers' health. Their paper proposes: "This high potential benefit shows that China's GM crop products may be an effective way to increase international competitiveness and farmers' income. If you consider the impact on health, the benefits will increase. The implementation of the commercialization of genetically modified rice to China The impact may be far greater than the productivity and health impact on the producers themselves.†Huang Ji?j said: “Our research shows that plant biotechnology will significantly increase China’s agricultural productivity, while China’s GM rice development will also be Other developing countries provide lessons.†According to a recent issue of the “Science†magazine, a joint study conducted by scientists from China and the United States showed that planting genetically modified rice can significantly reduce the use of pesticides and increase rice yields. The economic and health benefits are obvious. . The joint research was led by Huang Ji?j, Director of the Agricultural Policy Research Center of the Chinese Academy of Sciences, Researcher Hu Ruifa, Professor Scott Rozeler of the University of California, Davis, and Professor Calpley of Rutgers University. In this project, the scientists studied two transgenic rice varieties: "Shanyou 63" with insect-resistant genes for Bacillus thuringiensis and "Youming 86" with insect-resistant genes for cowpea. The two transgenic rice varieties have been in small-scale trials in parts of Fujian Province in China since 2001. In 2002 and 2003, scientists conducted a sample survey of all or part of the farmers who planted genetically modified rice, and also compared the situation of farmers who planted the same varieties of non-genetically modified rice. The survey showed that under the same conditions, the farmers planting transgenic rice use less than one pesticide per season on average, while the farmers planting ordinary rice use pesticides 3.7 times per season on average; the rice fields planted with genetically modified rice are The amount of hectares used for pesticides is one-eighth to one-tenth that of ordinary paddy fields. In addition, the yield of the "Shanyou 63" planted with the gene was 9% higher than that of the non-transgenic rice of the same variety. Although there is no significant difference between the rice yield and non-transgenic varieties of the transgenic "Youming 86," scientists believe this is due to the small scale of the experiment. Scientists also found that because farmers planting genetically modified rice have significantly reduced the amount of pesticides used, the health problems caused by it have also been significantly reduced. In the survey, all the farmers who planted GM rice did not report pesticide-related health problems. Farmers who grow ordinary rice have reported diseases related to the side effects of pesticides. In a paper published in the journal Science, scientists concluded that: "This study proves that insect-resistant GM rice has significant benefits in terms of yield and farmers' health."