Biostimulant includes diverse substances and microorganisms that are utilized for plant enhancement or stimulate natural processes to benefit nutrient uptake, nutrient efficiency, tolerance to abiotic stress, and/or crop quality apart from its “nutrient content”. Although the term “biostimulant” has not yet been defined under any specific regulation in China, these types of products are most frequently marketed as two types of novel fertilizer: microbial fertilizers and water soluble fertilizers. As stipulated under the MoA Order 32 “Measures for the Registration Management on Fertilizer”, products fall into both categories have to be registered with the MoA prior to placement on the market.