Use of chemical fertilizer, which is the main element N P K of each other will cause problems such as the lack of a secondary element of iron, zinc, copper, manganese, magnesium,
The use of chemical fertilizer is the main element NPK consecutive deficiency can cause problems such as zinc, iron, copper, manganese, magnesium secondary.
The use of chemical fertilizer is the main element N P K contact will cause problems of lack of vice, such as zinc, iron, copper, manganese, magnesium.