Hydroponics Indoor Horticulture  

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Hydroponics - Indoor Horticulture

Hydroponics - Indoor Horticulture represents an educational, in-depth, up-to-date, indoor horticultural growers guide that covers all principles of indoor Hydroponics Indoor Horticulture by Jeffrey Winterborne hydroponic horticulture and gardening. This book contains 110,000 words, with over 300 diagrams, pictures, illustrations, graphs, tables, 3 dimensional CAD renderings, and is printed in full colour.

Hydroponics - Indoor Horticulture examines, explores, dissects and presents a fully comprehensive step by step growers guide, relating to all and every aspect of indoor hydroponic horticulture, with complete chapters on plant biology, propagation, hydroponic systems, nutrients, oxygen, carbon dioxide enrichment, pH, biological pest control, fungi/disease, cuttings/clones, pruning/training, breeding, harvesting, equipment, grow rooms, a full history of hydroponics, and more.

This book goes further than any indoor growers guide has gone before, presented in full colour with 3 dimensional CAD renderings. Hydroponics - Indoor Horticulture quite simply outclasses any other book on the subject... In terms of literal content, quantity, quality and presentation, no other indoor horticulture growers guide can compete, let alone compare.

(Below follows a one page sample taken from the book)

pH and Temperature

How Nutrient pH Affects Availability of Plant Nutrients

One word of warning: the temperature of your water affects the reading of your digital pH meter. A story springs to mind where a grower, for the life of him, was not getting the performance he should have been, as the plants were in a constant state of ill health, pale in colour, no vigour and very slow in growing. After hours of cross-questioning him on all levels of running his grow room and feeding his plants and so on and so forth, at the end of the conversation as a passing note when he was leaving, he made comment that “oh, by the way, I always add a kettle of boiling water into the reservoir after filling it up.” He delivered this statement as if every grower in the world followed this practice. So I then asked him “ I take it you then balance your CF and pH after this?” Here was his blinding mistake. Directly after administrating boiling hot water to the reservoir he would adjust his CF and pH and in so doing, the reservoir having had a volume of very hot water inside it, therefore gave CF and the pH readings that were completely wrong. He would have been better off guessing rather than measuring it with his meters, as the volume of hot water changes the pH reading on your digital meters dramatically and also, but not to the same level, it affects the CF readings too. After showing him the error of his ways, the plants soon picked up and the grow was a good one.

Hard or Soft Water

To know what type of water you are using when using a hydroponics technique is fundamental to the upkeep of your system. So the type of water you have is an important factor when considering what nutrient solution to purchase.


Water quality does also play a major role in the quality of your end product. The worse your water quality is, then the harder the time the plants will have using it. In some cases of extremely hard water areas, it is highly advisable to employ a reverse osmosis machine to clean up the water before filling your reservoirs. These machines, by methods of complex filtration and run off, strip the water bare and in effect you get almost distilled water by removing all impurities from your water supply. If you are going to employ a reverse osmosis machine, it is still advisable to fill the reservoir with two thirds to three quarters using reverse osmosis (RO) water and one third to one quarter normal tap water. The reasons for doing this is that although very hard tap water has a high CF level and the majority of these dead salts are not beneficial to the plants, there are however, many trace elements and antibacterial agents that are valuable in many ways to the plants, so to add some hard water to the reservoir makes for good practice for keeping your plants healthy and strong.

The majority of nutrient manufacturers make hard water formulations of their products as well as universal and soft water formulations. The differing formulations will have differing buffering levels of pH stability; i.e. the hard water variations will reduce the pH in the water after dilution where the soft water variants will not affect the pH at all. This is beneficial to the grower because if you are in a hard water area when using hard water nutrients, it will lower the pH of your stock solution without you having to employ much pH down.

Esoteric Hydroponics for High Quality Hydroponics Grow Equipment