The management, such as plough, fertilization and irrigation etc. have not only changed the nutrient cycling in the farmland ecosystem system, but also brought influences to global climate.

这些农田土壤的种植、翻耕、施肥、灌溉等管理措施不仅改变着农田生态系统中的化学元素循环，且给全球气候变化带来影响。

youdao

Therefore, different fertilization and irrigation system in different development stages are needed to ensure the normal development of corn.

因此，在对玉米进行灌水和施肥时，针对不同生育期要有不同的施肥和灌水制度，才能满足玉米正常的生长发育。

youdao