Should I use a pre-defined or custom fertilizer?

Pre-defined fertilizer are for clients who want an off-the-shelf product library. Custom fertilizer are for clients who don't have a 1:1 product mapping for their grower's fertilizers blends.

There are three type of fertilizer categories that might be applied: 

1. Basic inorganics: your traditional synthetic fertilizer (ex. Ammonium nitrate.
   1. EENF inorganics: enhanced efficiency nitrogen fertilizers designed to reduce nitrogen losses to the environment and increase nitrogen availability to crops (ex. SuperU)
2. Organics: organic fertilizers or nutrients like manure, mulch, compost, etc.

Within both inorganics and organics, Measure API gives two options for describing your fertilization: 

1. Choosing a predefined fertilizer: Choose a validated fertilizer product from an existing library where Regrow supplies a default nutrient ratios and a default liquid or dry form.
2. Creating a custom fertilizer: Create your own custom fertilizer product where all nutrient ratios are supplied by the client.

 The following are the objects available within Measure API and a guide for when to choose that object.