果园叶面喷肥八注意吴际友一、适宜的气温。当气温为１８—２０℃时，果树叶片的气孔全部张开，这时进行叶面喷肥，有利于营养元素的吸收和运输，提高肥液的利用率。二、适宜的湿度。空气湿度大时，肥液湿润叶片的时间长，被叶片吸收的养分多，如果湿度小，肥液喷后很快变... Orchard foliar fertilizer pay attention to Wu Jianyou a, suitable temperature. When the air temperature is 18-20 ℃, all the stomata of the leaves of fruit trees are open, then foliar spray is beneficial to the absorption and transportation of nutrient elements and the utilization of fertilizer fluid. Second, the appropriate humidity. When the air humidity is high, the wetting leaves of the fertilizer solution take a long time and are absorbed by the leaves with more nutrients. If the humidity is low, the fertilizer solution quickly changes after spraying ...