Gravitropism and root growth: how roots find their way, and how biostimulants can help
How roots sense gravity, what goes wrong when roots are weak, and how seaweed, amino acid and humic biostimulants can support root growth.
Read this partGood farming advice starts with understanding the plant. This series explains the science behind root growth, plant hormones, seaweed extracts, humic substances, protein hydrolysates and stress tolerance, and then turns it into what a grower can check and do in the field.
Each part is written to be accurate and honest: what the research reports, what it does not show, and what to test on your own farm. We do not promise yields. We want growers, students, advisers and buyers to understand biostimulants well enough to judge any product, including ours.
The six parts
Auxin: the master regulator of root and shoot growth
What auxin does in roots, shoots, branching and fruit, why too much is as bad as too little, and what growers can do to protect it.
Read this partHow seaweed extracts influence plant physiology
What seaweed extracts contain, how they are reported to affect roots, nutrient uptake and stress response, and how to choose and test one.
Read this partHumic acid and root-zone development
How humic and fulvic substances work in the soil and at the root, what makes a good product, and how to use it for a stronger root zone.
Read this partProtein hydrolysates and nutrient-use efficiency
What amino acid and protein hydrolysate biostimulants are, how they are reported to help nutrient uptake and stress recovery, and how to use them.
Read this partBiostimulants for salinity and drought stress
How salt and drought hurt crops, which fixes come first, and where seaweed, amino acid and humic biostimulants may help the plant cope.
Read this partWritten by Gafar Laiya, founder of Gujarat Bio Organics, working with farmers since 2006. Results differ from farm to farm with soil, weather, crop and management. Farmer experiences on this site are their own reports, not a promise of results.
Have a question the series does not answer? Send us your crop, stage and what you see. Related: what are biostimulants, compost and humic acid.