Patent ID: 8690982

Claim:
A system for continuous fertigation of an agricultural field under the irrigation of an active agricultural irrigation system, wherein said system includes continuously charging a phosphorus-nutrient feedstock to said active agricultural irrigation system for a prolonged term, said active agricultural irrigation system having flowing irrigation water upstream of said agricultural field, wherein said phosphorus-nutrient feedstock is comprised of x phosphorus-nutrient-feedstock raw materials, wherein x is an integer between 1 and 5, wherein said phosphorus-nutrient-feedstock raw materials generates an exotherm upon said charging, said system comprising: x phosphorus-nutrient raw-material feed points, wherein x is an integer between 1 and 5, open to a stream of said flowing irrigation water; means for feeding said phosphorus-nutrient-feedstock raw materials simultaneously and separately through said feed points to said stream of said flowing irrigation water whereby treated irrigation water is formed, and means for irrigating said agricultural field with said treated irrigation water.