Biostimulants are organic materials that, when applied in small quantities, enhance plant growth and development.
Seaweed and humic acid are the two most commonly used ingredients in biostimulants.
CONCLUSION Research on biostimulants permits advances in turfgrass nutrition. Understanding the organic metabolism impact as well as mineral functions within a grass will enable enhancement of nutrition of turf grass subjected to stresses. Organic aspects of a grass are as important as mineral aspects in proper plant nutrition. The difference in mineral content between plants of the same cultivar with different growth responses is relatively small. Mineral nutrition is poorly correlated with tolerance to stresses. However, knowing the impact that biologically active materials have on turfgrass metabolism allows superintendents to condition turf grasses better to tolerate environmental stress. Using this knowledge provides an additional tool for producing high-quality turf under adverse environments.