Effect of nitrogen fertilizer on yield increase of ginger

The effect of different nitrogen fertilizers on the yield increase of ginger was highest with ammonium bicarbonate, followed by ammonium nitrate. Again for urea. The effect of sodium nitrate is not as good as that of other nitrogen fertilizers.

Nitrogen fertilizer has the effect of increasing the volatile oil and starch content of ginger and reducing the cellulose content. Sodium nitrate is not as good as other nitrogen fertilizer varieties. The content of protein is the highest with ammonium bicarbonate, and the economic coefficient is also the highest with ammonium bicarbonate.

In summary, in order to obtain high yield and high quality, it is necessary to pay attention to the application of nitrogen fertilizer on the basis of applying phosphorus and potassium fertilizer. Generally, 30-40 kg of nitrogen fertilizer is applied per 667 square meters. The nitrogen fertilizer variety should preferably use ammonium hydrogencarbonate or ammonium nitrate. In order to promote the early growth of ginger seedlings, sodium nitrate can be applied in an appropriate amount when applying phosphorus and potassium fertilizer, and the remaining nitrogen fertilizer is applied at different growth stages.