B and Zn (zinc sulfate) plays a very important role in ginger’s growth and yield. It’s said that apply appropriate B and Zn (zinc sulfate) can rise plants and expand leaf areas, increase the branches. What’s more, the ginger ball will be big and round, and skin is bright-colored.
Characters of fertilizing
It’s measured that 1000kgs of fresh ginger need absorb 6.3kgs of N fertilizer, 1.3kgs of P fertilizer and 11.2kgs of K fertilizer. The proportion of NPK is 5:1:8. It grows slowly in the seedling period, and need only a little NPK fertilizer; but when the rhizome is growing, braches increased and leaf area extend and the demands for fertilizer increased.
Enough base fertilizer is necessary, high quality thoroughly decomposed chicken manure 3-4 cubes, high quality barnyard manure 4000-5000kgs, pure sulfenyl compound fertilizer 50kgs, zinc sulfate 1kg and sodium borate 1kg.
Rational top application
Apply a few strong stock fertilizer: when 1-2 branches come out, the second fertilizer together with the irrigation, and 15-20kgs of High nitrogen compound fertilizer 15-20kgs for every 667㎡.
Pay much attention to the jointing fertilizer: ginger is stepping into a fully growing stage when 3 branches come out, so it is the key period for fertilizing, 70-80kgs of high nitrogen fertilizer is needed for every 667㎡.
Supplement fertilizer is needed: in the tuber expanding period, 50kgs of high nitrogen fertilizer is needed, twice and every 15 days a time.