美国佛罗里达州的柑桔种植者正在试用一种用热水除草的机器。由奎热技术公司研制的这种除草机,是在一个柴油机供热的加热器内把水加热几乎至沸,然后把这些热水喷到野草上。该机的关键部件是隔热帘,在热水喷出后的几秒种内能把热量约束在一定的范甲内,通过热水溶解植物的腊质外膜而将其杀死。在柑桔园中,处理1英亩草地需要1000 Orange growers in Florida, USA, are experimenting with a machine that uses hot water for weeding. This type of mower developed by Québex Technology, Inc., heated the water in a diesel-heated heater to almost boiling, and then sprayed the hot water onto the weeds. The key component of the machine is a heat-shielding curtain that confines heat within a certain range of fan-shaped armour within a few seconds after the hot water is sprayed, killing it by hot water dissolving the waxy outer membrane of the plant. In a citrus garden, it takes 1000 to treat 1 acre of grassland