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一、试点的基本情况试点选在武汉市洪山区谌家矶公社,面积133亩,分四块,每块边长160米。沙壤土质,地面坡降1/2000。蔬菜作物,耕作方向南北向。考虑到喷灌农药和化肥,田块四周用扇形喷头,中间则全部用全园喷头,喷头间距采用正方形组合形式,以免洒到田块外面,造成浪费。蔬菜要求雾化好、喷洒均匀,采用武汉市塑料十二厂试制的PYS20A型和PYS20型铜咀塑料喷头。喷头工作压力
First, the basic situation of the pilot Pilot election in Hongshan District of Wuhan Chen Jiaji commune, an area of 133 acres, divided into four, each side of 160 meters. Sandy loam soil, the ground slope down 1/2000. Vegetable crops, farming direction north-south. Taking into account the sprinkler pesticides and fertilizers, fields around the fan-shaped nozzle, the middle of the whole Park with the nozzle, nozzle spacing with a combination of square form, so as not to spill outside the field, resulting in waste. Requirements of good atomization of vegetables, spray evenly, using Wuhan City, trial production of plastic twelfth PYS20A and PYS20 type copper Tsui plastic nozzle. Nozzle working pressure