唐山专区常年春旱,使棉花出苗率很低。但是,在当地普遍地应用了“打垅”保墒的方法,战胜了春旱。方法是在早春土壤刚刚解冻能犂地时进行(当地在3月中、下旬)。先用耠子(旧式犂)在垅上耠沟3—4寸深,将基肥撒入沟中(基肥内掺入一定量的颗粒磷肥更好),然后再用犂将土培入沟中即成。 Tangshan area drought all year round, so that the emergence rate of cotton is very low. However, the method of “playing ” The method is when the soil has just been thawed and plowed in early spring (local mid-to-late March). First with prickly heat (old-style plow) in the 耠 on the furrow 3-4 inches deep, the base fertilizer into the ditch (based on the incorporation of a certain amount of granular phosphate fertilizer better), and then plow the soil into the ditch that to make.