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地球是一个巨大的磁场,人们在自然界中又找到了磁铁矿,生产了大量磁铁,人为的产生了磁场。而后,人们又利用电磁关系,发明了电磁场。磁场在现代科学研究中占据着重要席位,在农业上的应用越来越受到人们的广泛注意,应用范围正在扩大,用磁场处理种子就是一例。据试验,用磁场处理棉花、玉米、小麦、大豆、水稻、红薯、蔬菜等多种作物种子,都取得了增强发芽势,提早0.7～1天发芽,提高2％～10％的出苗率,提早1～6天成熟,增产2.7％～10.1％的明显效果,其中以红薯、大豆、蔬菜的增产,较其它作物更为明显。
Earth is a huge magnetic field, people in nature found magnetite, produced a large number of magnets, artificially produced a magnetic field. Then, people also use the electromagnetic relationship, invented the electromagnetic field. Magnetic field occupies an important seat in modern scientific research. Its application in agriculture has drawn more and more attention and its scope of application is expanding. The application of magnetic field to seed is an example. According to the experiment, all kinds of seeds such as cotton, corn, wheat, soybean, rice, sweet potato and vegetable are treated with magnetic field to enhance the germination potential, germinate by 0.7 to 1 day earlier and increase the emergence rate by 2% ~ 10% 1 ~ 6 days maturity, an increase of 2.7% ~ 10.1% of the obvious effects, of which sweet potato, soybean, vegetable yield, more obvious than other crops.