Functions of Bio Fulvic Acid (I): Increasing Crop Yield & Improving Crop Quality
1. Increasingcrop resistance
Bio fulvic acid can reduce stomata opening strength and transpiration of crop leaves, thereby reducing the crops’ water consumption, improving their water content, ensuring the normal growth and development of the crops under dry conditions, and enhancing their drought resistance. Humic acid is mostly amphoteric colloid, which has good surface activity, inhibits the growth of fungi and enhance cold resistance of crops. It can be easily absorbed by cell membrane, enhances cell membrane permeability, promotes absorption of inorganic nutrients, prevent rot disease as well as root rot and reduce pests and diseases damage.
2. Promotingcrop respiration
When bio fulvic acid and humic acid are applied to crops, their root systems are developed and their secondary roots increase. Chinese Academy of Agricultural Sciences carried out a comparative test of ammonium sulphate and ammonium humate. The data showed that ammonium humate could increase respiratory of paddy rice by 18.2% and its photosynthetic intensity by 12.2%.
3. Enhancingenzyme activity
Bio fulvic acid enhances the enzyme activity in the soil as well as the activity of the crop itself, with an enhancing range between 24.4% and 175.6%. For different crops, the enhancing performance varies. Taking wheat as an example, the application of bio fulvic acid can increase the enzyme activity of wheat by 62%-82%, and promote its growth, respiration and photosynthesis. When the crop is in a premature state or water shortage, the nitrate reductase in it will decrease. According to the results a set of experiments done on wheat, the attenuation rate of nitrate reductase in wheat drops from 37% reduced to 21%, if bio-fulvic acid is applied to it during the booting stage or grain filling stage, making wheat drought-resistant and premature senescence-proof.
4. Promotingearly germination and increasing seedling emergence rate
Taking wheat as an instance, after seed dressing with bio fulvic acid, its seedling emergence rate can be increased by 10%-30%, and its seedling emergence 1-3 days earlier. As for rice, its seedling rate can be increased by 27% – 38% after seed dressing with bio fulvic acid. To sum up, for different crops, the seedling rate can be increased by 10%-30% after the seed dressing.