Ginger skillful application of nitrogen fertilizer quality and high yield


Rational application of suitable nitrogen fertilizers according to the law of ginger's fat absorption can greatly increase the yield and improve the quality, increase the content of commercial ginger starch, protein and volatile oil, and decrease the content of soluble sugar and cellulose. Among the four nitrogen fertilizers including ammonium bicarbonate, sodium nitrate, urea and ammonium nitrate, sodium nitrate had the best growth promoting effect on ginger during seedling stage. By the middle and later stages, the application of ammonium bicarbonate has the best effect on increasing the yield of ginger and increasing the content of volatile oil, starch and protein.

In order to obtain high yield and quality of ginger, we must pay attention to the application of nitrogen fertilizer on the basis of the application of phosphorus and potassium fertilizers. Generally, 30 kg to 40 kg of nitrogen fertilizer is applied per acre, and ammonium bicarbonate or ammonium nitrate should be preferred for nitrogen fertilizers. In order to promote the early growth of ginger seedlings, sodium nitrate (approx. 20% of total fertilization amount) can be applied when phosphorus and potassium fertilizers are used as base fertilizer.

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