使用化肥也需＂倒茬＂凤城市东汤乡农业站贺业富提起倒茬，大家便会想到合理安排不同作物间的茬口，这对提高产量有重要意义。多年的施肥经验告诉我们，搞好化肥＂倒茬＂也是十分重要的。生产实践中常有这样的争论：同一个厂家生产的化肥，有的说＂有劲＂，有的说＂没劲＂... The use of chemical fertilizers also need to “stubble” Fengtang Dongtang Agricultural Station Heye Fu filed down stubbornly, we will think of a reasonable arrangement of stubbles between different crops, which is of great significance to increase production. Many years of fertilization experience tells us that it is also very important to do a good job of converting “stubble” fertilizer. Production practice often have such arguments: the same manufacturer of fertilizer, and some say “strong”, and some say “boring” ...