How to apply potassium fulvate to soil consolidation plot? How much dose can play a significant effect?

Potassium fulvic acid can regulate the soil, but it can not be achieved overnight. Generally, after 500g potassium fulvic acid per mu is used for several years, the soil hardening can be gradually relieved. Because of the large number of microorganisms in the soil, the content of organic matter will be greatly increased, the soil will become soft, the aggregate structure is good, and the ability of absorbing water and fertilizer will be strengthened.