In California In USA,More 70% farm use micro irrigation to water their plant.California have the biggest farm of micro irrigation in USA,it is about three hundred and twenty thousand hectares vineyard is watered by micro irrigation.
In 1980S,more and more farmer begin to use micro irrigation to water their vineyard because water price increased continual.Especial water sandy soil,the effect is best.
The majoy damage for Vineyard in California is powdery mildew.,farmer must spray medicament once one or two week.If use micro irrigation,it can spray the water with medicament together to the exact point,it save time and save about half medicament.Another micro irrigation can spray water with fertilizer.Third,micro irrigation can adjust the water flow as per plant need.
Florida is a major producer of Florida citrus ,other fruits and vegetables in USA. Citrus area is about three hundred thousand hectares, the area of micro-irrigation can reach 269,200 hectares. Why micro irrigation is so popular in Florida? First,in a period of drought micro irrgation can save half of the water.Second,to increase the yield and quality for good; Third,it is important that micro irrigation can spray water with fertilizer,it can save fertilizer and labor.