Article 4-2 Hydro Humates

by Dr. Lynette Morgan There is a range of minerals, compounds and organic based substances found in soils which we don’t often think of as being part of a ‘soilless system’. Since plants evolved in soil, they developed the ability to make use of a number of substances which, while not essential for crop growth, have the ability to enhance [ read more ]

Article 4-1 Trimming Technique

Gardeners Guide to Proper Insecticide The information contained in this article is designed to enhance the gardener’s knowledge of insecticides and for the gardener to attain the best results from applying them. Due to the variety of Insecticides available, in this issue, we will review botanical insecticides, the next issue we will review synthetic insecticides and our last article in [ read more ]

Article 4-1 Leaves Turn Upward

g’day guys. I have a urgent problem, i am growing from a strain and they are about 25cm tall, and four sets of branches out. the problem is cupping of the leaves towards the end of the day, slow growth, and not drinking much. They are seedlings not clones. My running conditions are: feed, 1500ppm, being water 360ppm, nutrients 1140ppm,=1500ppm, [ read more ]

Article 4-1 Nutrients Too Much or Too Little

Nutrients – Under and Over Use By Dr. Lynette Morgan Introduction Nutrients are the basis of any hydroponic system and since we need to meet all of the plants nutritional requirements, it’s important to know what you are supplying and what can go wrong. With any nutrient solution the two factors to keep in mind are firstly the composition of [ read more ]

Article 4-1 Foundation for Maximum Yield

Ask an experienced grower to describe a perfect crop plant, and this is what he would say: Vigorous, active growth. Healthy: no bugs or disease problems. Sturdy, compact shape. Good established branch structure. Healthy, deep root system. Can use high light levels. Able to take up and use very strong fertilizers. Can benefit from increased C02 levels. Makes good use [ read more ]

Article 3-5 Root Rot

Perhaps you can help me by giving me information on combating root rot in my hydroponic garden. This has just started about one month ago but I have lost many plants at this point. The culprit is root rot. How do I stop it? I love your magazine and have learned lots from it. Thanks, Lynn T. Lynn: Rot, or [ read more ]

Article 3-5 I am growing in Sunshine Mix

I am growing in sunshine #4 and coconut fiber mix. I use Supernatural regularly but have poor quality well water as a result plants are showing signs of nutrient deficiency/buildup. The leaves turn yellow, go spotty, curl up, are dry and fall off. Younger plants are not growing as they should. The problem we figure is the poor water. Because [ read more ]

Article 3-4 TDS-EC

TDS, EC, PPM, microSiemens: What do all those letters mean? What is the best way to calibrate a TDS or Ec meter? Answer: Standard reference solutions are used. The bottles are marked with the conductivity (EC) value in microSiemens/cm and the corresponding ppM values for sodium chloride (NaCl) and potassium chloride (KCl) solutions, and sometimes for a “442” reference mixture. [ read more ]

Article 3-4 Rules of Green Thumb

When you receive your babies (cuttings or clones): Tender clones require fluorescent light, 1-4 inches above the top of the plant. When kicked (put into bloom) the 1000 watt light should be 4 ft inches above the plant the first day, watch plants for first 24 to 48 hours of okay lower 1 ft a day until desired height. Tip [ read more ]

Article 3-4 I Work for the City

I work for the City of Elk City in Oklahoma. I am researching a potential project of beginning a hydroponics garden to be operated by the City. We have two potential sources of water and nutrients we are considering for the garden. We have two fish ponds that could be utilized and then the sewer lagoon gray water. What type [ read more ]