Generally speaking, the effective period of fertilizer products is as follows (for reference only):
Ammonium bicarbonate: effective on the same day, with a fertilizer shelf life of 15 days;
Ammonium chloride: takes effect in three days, has a fertilizer effect period of 25 days, and is later de fertilized;
Urea: takes seven days to take effect, with a fertilization period of 45 days;
Compound fertilizer: takes ten days to take effect, with a fertilizer effect period of 90 days;
Bio organic fertilizer: usually takes about a month to take effect, and the effect is not very obvious on crops with long growth cycles, but the fertilizer effect can last for 6-8 months;
Hormonal substances: have quick effects, but do not have much nutrition on their own, and do not provide much practical help for increasing production.
In short, when choosing fertilizer, we cannot judge the quality of a product solely based on its growth. We must understand that the ultimate goal is yield and quality, and fertilizers that can increase production and ensure quality are good fertilizers.
Dorcas, a leading
biotechnology factory in Qingdao, China. As
top three manufacturers of seaweed fertilizer in China with
more than12 years of experience. We produce
seaweed extract, organic granular fertilizer, liquid foliar & vigoroot fertilizer and
liquid chitosan fertilizer with biological enzymolysis method. We passed ECOCERT and IMO certification.