The main factors influencing the wheat yield in downland were initial nitrogenous dressing, the amount of nitrogenous fertilizer applied for different leaf age and close fertilization.

In order to accelerate close canopy of new plantation Phyllostachys nuda forest, fertilization experiment on new growing bamboo was carried.

The formation of soil secondary salted in greenhouse cultivation in suburbs of Shanghai has a close relationship with improper fertilization or employing too much fertilizer.