Since the first genetically modified organism ( gmo ) appeared in the world in 1998 , it has been developing quickly on the whole world . its planting area enlarges continually , more and more countries began to grow gmo 自从1983年世界上出现第一例转基因作物以来，转基因作物在全世界得到迅速发展，种植面积不断扩大，种植国家不断增多。
Gm food has been developing at an unprecedented rate . in the recent seven years , its " planting area grows thirty - five times . more than half of world ' s population lived in countries where gm crops are approved and grown today 转基因作物的发展速度是惊人的，近七年间种植面积增长了35倍，目前占世界人口一半以上的国家都在种植转基因作物。
1996 to 2003 , the global area of transgenic crops has increased 40 - fold , from 1 . 7 million hectares ( mha ) in 1996 to 67 . 7 mha in 2003 . these were grown by 7 million farmers in 18 countries 简报指出， 1996年至2003年，全球转基因作物的种植面积扩大了40倍，从1996年的170万公顷增至2003年的6 , 770万公顷，种植地区遍及18个国家， 700万农民参加种植。
Agriculture is an evolutionary arms race between plant protections and pests comments botanist jonathan wendel of iowa state university . and gm crops are just one more way that we ' re trying to outsmart pests 但是，有些环保人士怀疑情况是否真的这么乐观，他们认为，那些非bt作物收容所不是种植面积太小，就是设计太差，要期望昆虫长期不产生抵抗力，实在很难。
As the low plant yield ( per unit yield ) and low quality ( product quality ) and comparatively lower profit of agriculture , the farmers could not increase their income by extending planting water chestnut area 荸荠种植产量(单产)和质量(商品质量)偏低，使得农户种植荸荠不能获取较大的经济效益。由于种植荸荠的经济效益偏低，限制农户扩大荸荠的种植面积规模。
Recently , two new countries , india and the philippines , joined the global group of countries that are growing genetically engineered crops . countries growing gm crops in 2003 50 , 000 hectares , or more less than 50 , 000 hectares 方面，美国的种植面积为4 , 280万公顷，阿根廷为1 , 390万公顷，加拿大为440万公顷，巴西为300万公顷，中国为280万公顷，南非为40万公顷。
The sugarcanes had absolute priority . there were six leading crop production belts in taizhou region : ( 1 ) grain production mainly in xian ' ju and linhai county , whose production area was 34500 ha in 2002 , accounting for 35 . 2 % of the 台州市仙居、临海是主要的粮食生产基地， 2002年粮食种植面积为34 . 5千公顷，占台州市粮食种植面积的35 . 2 % ，占该县、市的85 . 5 % 。
