Plant Food Co., Inc. is a leader in fertigation of nursery stock. The basic approach of nursery stock fertigation is to supply the nutrients to the container by injecting liquid fertilizer into the irrigation water. While other methods of fertilizer application such as controlled release fertilizers may supply nutrients to the container, fertigation allows optimum control of nutrient application rates through ppm or the electro conductivity (E.C.) method. Nutrient ratios and timing of nutrient applications are easily adjusted. All essential nutrients, including micronutrients, can be applied through irrigation water.

Plant Food Company's "Virginia Tech" formulation 10-4-6 liquid fertilizer is formulated with Liquid Ammonium Nitrate (LAN). This formulation provides nitrate nitrogen to allow a quicker nitrogen response in sterile soilless mixes and helps prevent ammonia toxicity to the roots of container grown stock from urea based nitrogen. The lower phosphorous content has been shown to help reduce excessive stretching of the plant material. Sulfur and high quality EDTA chelated micronutrients can easily be added into the formulation.

Plant Food Co., Inc. has applicator tanks and pump systems available to help you set up your equipment to provide application of slow release water insoluble nitrogen (W.I.N.) known as Liqua-Form® or water soluble slow release nitrogen (S.R.N.) for dormant application of fertilizer on field stock.

Plant Food Co., Inc. also custom formulates N-P-K Liquid Fertilizers for fertigation through drip irrigation systems.