论文部分内容阅读
1998年邹平县试种抗虫棉73.3hm2 ,1 999年达到 730 0hm2 ,2 0 0 0年全县普及。到目前为止 ,已累计种植转基因抗虫棉 8.39万 hm2 ,平均每年每公顷节约治虫成本 1 2 90元 ,共计节约治虫费用超过 1亿元人民币。通过种植转基因抗虫棉不但提高了经济效益 ,而且也提高了生态效益和社
In 1998, Zouping County tested 73.3 hm 2 of insect-resistant cotton, reaching 1,80,000 hm 2 in 1999 and popularized throughout the county in 2000. So far, 83,900 hm2 of transgenic insect-resistant cotton has been planted, saving an average of 122,900 yuan per hectare per year, saving a total cost of more than 100 million yuan on pest control. Transgenic insect-resistant cotton by planting not only improve economic efficiency, but also improve the ecological efficiency and social