开春后冬小麦就要进入快速生长时期,从返青至开花期间,贯穿着营养生长和生殖生长同时并进的过程,为了达到增穗、壮秆和穗大穗齐的目的,春季追肥是很重要的措施。冬小麦的春季追肥是结合浇水进行的,一般要选用水溶速效性化肥。从常见肥料农业化学性状看,磷肥和钾肥都稳定,适宜作基肥与种肥,在小麦播种前全部施入土壤,而氮肥性状很不稳定,无论施在地表或土壤中,只要数量稍大,都容易造成损失。 Winter wheat is about to enter a period of rapid growth after the spring, and from the process of returning to green to flowering, the process of vegetative and reproductive growth goes hand in hand. In order to achieve the purpose of increasing ear, stalk and ear panicle, spring top dressing is an important measure . Spring wheat top dressing is combined with watering, water dispersions are generally used quick-acting fertilizer. From common agricultural chemical properties of fertilizer, phosphate fertilizer and potassium fertilizer are stable, suitable for base fertilizer and seed fertilizer, before sowing all the wheat into the soil, and the characteristics of nitrogen fertilizer is unstable, regardless of the surface or soil, as long as the larger the number, Are easy to cause damage.