Application rates and timing are important to achieve the maximum benefit from plant growth regulators such as Culbac. Our research has defined the optimal amounts and timing of application (usually only twice during a growing season) that even small amounts of Culbac can stimulate large results in crops. Copious studies have defined the timing to achieve maximum yield when applied at the recommended rates for cotton, alfalfa, rice, tobacco, peanuts, wheat, dryland wheat, irrigated wheat, oats, barley, soft red winter wheat, hard red spring wheat, corn, sweet corn, grain sorghum, edible bean seed, and many, many more.