CONTENTS
April 2015
FEATURES
72
98 108 118 144
46 The Right Light for Vegetative Growth
118 Growing Strong Seedlings
140 Strengthening Plants With Silicon
58 Bone Meal Basics
130 Parasitic Pathogens: Infectious
144 The Do’s and Don’ts of
by Eric Hopper
by Harley Smith
Diseases in Hydroponics
by Chris Bond
by Danny Klittich and Chris Durand
Expanded Clay Pebbles
by Zach Zeifman
by Dr. Lynette Morgan
72 Managing Your Landscape
With Microclimates
by Sara Elliott
80 Sourcing CO2 for Your
Indoor Garden
by Grubbycup
DEPARTMENTS
14
88 Buffering Up: Adjusting the
Cation Exchange Capacity
in Coco Growing Media
by Mark Wittman
98 Grow Lights on Trial
by Christopher Sloper
108 The Power of ORP
by Laci Macri and Bob Starnes
12
Maximum Yield USA | April 2015
From the Editor
86
Chemist’s Corner
16
MaximumYield.com
116
Avant-gardening
20
Letters to the Editor
150
You Tell Us
22
Ask the Experts
152
Talking Shop
24
Max Facts
156
Max Mart
32
Product Spotlight
157
Distributors
66
Growers Know
170
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