Agriculture fertilizer spreader or agricultural spray adjuvants enhances the effectiveness of pesticides such as herbicides, insecticides, fungicides and other agents that control or eliminate unwanted pests. In contrast to medical adjuvants, agricultural fertilizer adjuvants do not possess inherent pest-controlling or pest-killing properties. Instead, these additives alter specific characteristics of the spray solution, enhancing the pesticide's capacity to penetrate, target, or safeguard the intended organism.

Moreover, among the typical types of ingredients utilized are surfactants, emulsifiers, oils, and salts. Each of these ingredients, along with others, alters the spray solution to enhance properties such as spreading, penetration, droplet size, or other relevant characteristics. These additives may be integrated into a formulation with a pesticide, or they may be separately added to a tank. When included in the pesticide formulations themselves, they are referred to as in-can adjuvants.

Agricultural fertilizer adjuvants may also be added separately when the spray solution is being prepared. Spray Adjuvants contain an active ingredient that is non-toxic in nature, and it easily spreads on the surface of the plant. Moreover, it is biodegradable. Spray Adjuvant improves dispersing and spreading the quality of the spray. It can also be used in drip irrigation with soluble fertilizers.