Book excerpt: Simple explanations about how to add biology to any plant growing system makes this book easy-to-read for the general public. Guidelines for conventional, sustainable and organic applications -- whether you are growing indoor in controlled environments and soilless media or outdoors in open fields of soil, this book helps you design your growing systems and incorporate biology into your programs. Basic biology and chemistry of nutrient-cycling and plant growing environments are given, so the mystery is taken out of plant growing. Chapters include: Introduction, Synthetic or Inorganic Systems, Biological/Organic Systems, Plant Growing Systems Out of Balance, Roots Interface Biology and Plants, Types of Microorganisms, Types of Beneficial Aerobic Microorganisms, Environments for Maintaining Microorganisms, Microbes and Plants Form a Symbiotic Relationship, Integrating Biology into Plant Growing Systems, Sources of Beneficial Microorganisms, Apply Microorganisms, Testing for Biologicals, Research on MicroorganismsThere are many types of biological products for soil and soilless media enhancement available on the commercial market today and more entering daily. New research, new formulations, new stabilization techniques are enabling the expansion of these product to fill the increasing demand from consumers wanting alternatives to toxic chemical pesticides and synthetic fertilizers.This notebook is an attempt to provide basic information about adding biology to soil and soilless media whether in outdoor fields or indoor controlled environment hydroponics systems. Whether we are using synthetic fertilizers/nutrients or sustainable practices, or have converted to organic systems, there is a way to add biology to enhance production, yield and quality.