Section 2 Table of Contents

Table 1.2-18. Nonconventional soil additives.
Product group Method of application Reported action
Growth stimulants or regulators Seed, soil, or plant Promote growth, improve nutrient water uptake, or solubilize soil nutrients
Biological additives Soil Enhance soil microbial activity
Low-rate nutrient additions seed or plant More efficient nutrient use
Organic amendments Soil Provide nutrients; improve soil “tilth”
Mineral amendments Soil Substitute for lime or fertilizers
Soil conditioners Soil Improve soil drainage, soil physical properties, or nutrient release