Let's back to nature......
Whatever type of fertilizer manufacturers and chemicals used to increase the yield of a plant, will not be able to survive long, my experience, the best way to grow crops is the provision of the main growing conditions, namely fertile soil and adequate water availability.
The trick is to apply the organic fertilizer in the fermentation of non-plastic household waste.
Organic fertilizer is believed to be able to increase soil humus levels and maintain the availability of water, because loose soil will absorb more water and store it for longer, should the manufacturer's products only be used as a complement to the nutritional needs of the plant