刘树山是公主岭市范家屯经济开发区十家子村十屯农民，承包了十几亩责任田。以前种的全是玉米，收入很低，也种过香瓜，但由于技术落后收入也不太高，最近两年他依靠科学技术和多年的实践经验，改变了过去的种植方法采用双层膜小拱棚扣香瓜，比普通地膜香瓜提早上市半个月左右 Liu Shushan is Gongzhuling Fanjiatun Economic Development Zone Shijia Village ten Tuen farmers contracted more than a dozen acres of responsibility field. Previously all kinds of corn, low income, also planted melon, but because of backward technology income is not too high, the last two years, he relied on science and technology and years of practical experience, changing the past planting methods using double membrane Cloak deduction melon, melon than the average market for about half a month or so