Bringing Earth's
Resources to Life



Fertilizer Spreader Calibration
Fertilizer Spreader-Lely 1250
Fertilizer Spreader-Vicon
How To Measure an Area
International Lely 1250 Spreader Settings
International Spreader Calibration
International Vicon Spreader Settings
Soil Testing Order Form
Planting Specification Reccommendations
Northern California Sample Fertilizer Program
Southern California Sample Fertilizer Program


Application Advantages of Homogenous Pellet Fertilizers
How Controlled Release Technology works?
How Soil Holds and Supplies Nutrients to Plants
How to Read a Fertilizer Label
Induced Nitrogen Deficiency
Nitrification vs Dentrification
Soil Uptake of Nutrients
The Role of Fertilizer
Turf and Sulfur


A & L Laboratories
American Society of Agronomy (ASA)
American Society of Golf Course Architects
American Society of Landscape Architects (ASLA)
California Association of Pest Control Advisers (CAPCA)
California Fertilizer Foundation (CFF)
California Landscape Contractors Association (CLCA)
Croplife of America
Golf Course Builders Association (GCBAA)
Golf Course Superintendents Association of America
International Society of Arboriculture
North Carolina State University Turf Files
Ohio State University Horticulture & Crop Science
Pesticide Applicators Professional Association (PAPA)
Responsible Industry for a Sound Environment (RISE)
Soil Science Society of America
Southwest Trees & Turf
Sports Turf Managers Association (STMA)
Turf Net
Turfgrass Science at University of Minnesota
United States Golf Association (USGA)
Western Plant Health Association (WPHA)