Biostimulant based on liquid earthworm humus for improvement quality of basil (Ocimum basilicum L.)

In this study, the possibility of using a biostimulant based on liquid earthworm humus to improve the growth and quality of basil plants (Ocimum basilicum L.) was evaluated. The 3 experimental groups in cultivation were: i) group without biostimulant (CTRL), irrigated with water and substrate previously fertilized; ii) group with 1% liquid earthworm humus (ON1) and fertilised substrate; iii) group with 2% liquid earthworm humus (ON2) and fertilised substrate. The test showed a significant increase in agronomic parameters and in the percentage increase in the main constituents of basil plants treated with liquid earthworm humus. The biostimulant derived from earthworm humus combines nutritional and microbial characteristics that make it a versatile product. The varied microbial component present within the biostimulant product is very important, as it can improve both the characteristics of the soil once used and determine greater control against pathogenic microorganisms in the treated areas near the plants.