国内水田耕整地机械化发展瞻顾夏晓东，胡良龙农业部南京农机化研究所水稻是一种高产粮食作物，全世界水稻种植面积约为１．３５亿ｈｍ２栽培方式有移栽和直播两种。我国是世界主要产稻国之一，有长达７０００多年的种植历史。目前我国水稻种植面积约０．３４亿ｈｍ２占世... Mechanized development of paddy field land reclamation in China Xia Xiaodong, Hu Lianglong Institute of Nanjing Agricultural Mechanization, Ministry of Agriculture Rice is a high-yielding grain crop with about 135 million hm2 of rice planted around the world. There are two types of transplanting and direct seeding. China is one of the world’s major rice producing countries, with a planting history of more than 7,000 years. At present, the planting area of ​​paddy in our country is about 34 million hm2.