叶面喷肥是一项经济有效的增产措施,在小麦、玉米上一般能增产一成至一成半。在单纯喷施磷酸二氢钾的基础上,试用综合制剂,效果更好。在小麦上根据苗情,施用含有氮、磷、钾微量元素、激素、杀菌剂、杀虫剂的综合制剂增产效果显著。小麦喷施叶肥后,籽粒数能增加1—2粒,千粒重增加1-3克,增产10—15%左右。玉米穗行籽粒数增加1—2粒,千粒重增加30—70克,增产15%左右。应用时根据苗情采取不同的肥料配方。小麦第一次喷肥在孕穗期,弱苗喷以氮为主的100 Foliar fertilizer is a cost-effective stimulation of production, yielding as much as 10% to 10% on wheat and corn. On the basis of simply spraying potassium dihydrogen phosphate, it is better to try integrated preparation. According to the seedling situation in wheat, the application of a comprehensive preparation containing nitrogen, phosphorus and potassium trace elements, hormones, fungicides and insecticides has a remarkable effect of increasing yield. Spraying wheat leaf fertilizer, the number of grains can increase 1-2 grains, grain weight increased 1-3 grams, an increase of about 10-15%. The number of ears of corn increased by 1-2 grain, 1000 grain weight increased by 30-70 grams, an increase of about 15%. When applied according to the situation to take a different fertilizer formula. The first wheat sprinkling at the booting stage, weak seedlings sprayed with nitrogen-based 100