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This autumn, some of the 300 hectares of maize in seven federal states in Germany were harvested with partially genetically modified corn. This is part of Germany's plan to plant genetically modified (GM) crops. The researchers wanted to use this same experiment to test whether genetically modified corn and ordinary corn can coexist peacefully and whether they will spread through pollen. According to statistics, the yield of transgenic maize harvested accounts for 0.9% of the average maize, which is in line with the German gene and technology law. In other words, farmers can consider planting more than 0.9% genetically modified corn when growing corn. However, the harvested corn products must be marked with the word "GM corn." On Wednesday, companies participating in the planting of genetically modified corn announced at the press conference the results of experimental planting, ie, the distance between normal maize and genetically modified maize germplasm remained above 20 meters to prevent the cross between the two types of corn. Because the researchers found that the two maize hybrids were only within 10 meters. This conclusion was drawn by the Institute of Plant Cultivation and Plant Protection of the University of Havrevenberg. The planting distribution of the GM maize test was as follows: Transgenic maize was planted in the middle of the field and all the surrounding areas were normal corn. The plant spacing of the two corn plants was 6 meters. The selected variety was the same period of flowering corn. In addition, in the middle of genetically modified cornfields, a narrow band was used to plant corn varieties that had a particularly early flowering period, in order to find out if crossbreeding would occur in varieties with different flowering stages. In theory, it is impossible to avoid the phenomenon of hybridization between genetically modified maize and common corn just by selecting varieties. From the perspective of trial planting, the gap between genetically modified corn and normal corn should be at least 20 meters, so that no two corn hybrids will appear. Germany's corn planted this year was BT genetically modified corn, which is also an anti-corn hopper moth corn variety. German corn borer moth is very serious, about one-fourth of the corn is affected by codling moth each year. Scientists sampled at multiple sites in the field to find traces of BT corn in corn. So far, sampling tests have been performed on six experimental plots. The results show that 1.25% of the crossbreeds in BT corn are within 10 meters, 0.4% at 20 meters, and 0.3% at 50 to 60 meters. To this end, scientists believe that the distance between two kinds of corn planting has a distance of 20 meters. The reason why the interval of planting corn is so close is mainly because corn pollen is heavier and it is not easily carried by insects. If you plant rapeseed, the situation will be very different. It is because the pollen of rape is light, it will be everywhere when it is blown by wind, and it is easily spread by insects. As far as the distance between the planting of rapeseed is concerned, there is no authoritative data. Previously, it was generally believed that the distance between the planting of GM corn and normal corn must be very long, otherwise it would lead to the hybridization of the two corns. In May this year, German Minister of Agriculture Kunast had asked farmers to plant the two kinds of corn at a distance of at least 1,000 meters, and the opinion of the experts of the Ministry of Agriculture was 1940 meters. The experimental planting of GM maize is of course simple, but professional cultivation companies and participants are skeptical about the revision of the German gene technology law. The new gene technology law puts forward the so-called “responsibility for harmâ€. If a farmer is harmed by planting two types of corn, it naturally relates to the cultivation of genetically modified varieties. For this reason, both farmers and researchers believe that the risk of planting genetically modified corn is too high. Once it causes a "hazard," farmers cannot compensate. Rexberg, Minister of Economy of Saxony-Anhalt, demanded that the government take back new genetic technology laws. However, Secretary of State Ministry of Agriculture Bellin stressed that anyone who wants to plant GM crops must bear economic risks. Today, this question depends on how the German government treated the genetic technology law after it came into effect. At present, when the new gene technology law comes into force has not been determined. Is it still possible to try another one year next year? Both researchers and participants hoped to conduct several more experiments to find out the growth pattern of genetically modified corn. The main problem now is that professional companies and farmers do not understand what new genetic technology laws can bring to them.