烟草是重要的经济作物之一，为获得烟草的优质高产，除选用优良品种，创造适宜的环境条件外，合理施肥是一项十分重要的措施。 一、苗床施肥 　　掌握以基肥为主酌施追肥原则。要求每亩施过筛灶灰 2000～ 3000公斤、圈肥 2000公斤，钙镁磷肥 25～ 50公斤。当苗床植株有 3～ 4片 Tobacco is one of the important cash crops. In order to obtain high quality and high yield of tobacco, reasonable fertilization is a very important measure in addition to selecting good varieties and creating appropriate environmental conditions. First, seedbed fertilizer to master the main fertilizer to implement the principle of dressing. Requires per mu applied sieve ash 2000 ~ 3000 kg, circle fertilizer 2000 kg, calcium magnesium phosphate 25 ~ 50 kg. When the seedbed plants have 3 to 4 tablets