Bio-stimulants include both bacterial and fungal inoculants, various types of compost, and organic adjuvants that stimulate plant growth and improve yield. Farmers have been using bacteria inoculants containing Rhizobia bacteria on legumes and clovers like soybeans, alfalfa, and red clover for many years. Each plant has a specific Rhizobia bacteria inoculant needed to maximize nitrogen production. Rhizobia take atmospheric nitrogen and convert it to plant available forms of nitrogen in the nodules. Inoculants for soybeans and alfalfa may last 1-2 years while cover crop inoculants are short lived, lasting only 12-48 hours. Many farmers buy pre-inoculated seed but exposure to sunlight and temperatures above 500F often make them ineffective. For best results, always inoculant cover crops legumes (winterpeas, vetches, cowpeas, Sunn Hemp) and clovers (crimson, Balansa, red, sweet) at planting and buy the right inoculant species. Other inoculants are fungal. There are over 150-250 different ...