concentrated fertilizer

Producers should realize that greater row spacing results in more concentrated fertilizer bands within the seed row.

The "Lettuce Bot" uses visual-recognition software to identify which weeds to eliminate, before squirting a concentrated fertilizer that both kills the unwanted buds and enriches the surrounding soil.

He established the Federal Phosphorus Company to produce concentrated phosphoric acid, mainly for use as a concentrated fertilizer, using a novel method to produce the acid from phosphate rock by heat treatment in an electric furnace.