In recent years, the ginger has kept high cost all the time in which the fertilizer takes the major cost. Under the same climate condition, to increase the ginger yield, fertilizer technology is the key problem. Guarantee the quantity of large and medium element fertilizer, meantime, do not ignore the roles of micro-fertilizer, like as zinc sulfate, which is also helpful to increase ginger yield.
During the whole growth period of ginger, the largest requirement in all the essential elements is potassium, followed by nitrogen, then magnesium, calcium, phosphorus, and so on. Taking 1 tons of fresh ginger for example, the ginger would intake to 0.57 kg phosphorus. If take the quantity of phosphorus as 1, the detail fertilization ratio for nitrogen, phosphorus, potassium, calcium, magnesium is 11:1:16:2.3:2.4.
Trace elements fertilizer is mainly zinc sulfate fertilizer and boricfertilizer which is generally used as basal application or additional fertilizer. In zinc deficiency field, fertilize zinc sulfate 1 ~ 2 kg per acre, boricfertilizer 0.5 ~ 1 kg per acre.
It’s been proved the application of micro-fertilizer like zinc sulfate can effectively make the ginger yield up by 38.9%. Of course, fertilizer is not the more the better. Strictly control on various elements fertilizer according to ginger need to avoid excess poisoning.magnesium sulphate