المساعد الشخصي الرقمي

مشاهدة النسخة كاملة : Hydroponics for the Home Gardener



mloshm
27-05-2007, 12:51 PM
http://images.amazon.com/images/P/1550133756.01._SCLZZZZZZZ_.jpg

Hydroponics for the Home Gardener: An easy-to-follow, step-by-step guide for growing healthy vegetables, herbs and house plants without soil. (Gardening (http://gigapedia.org/item.id:34727,title:hydroponics-for-the-home-gardener-an-easy-to-follow-step-b,cat_id:0,cat_page:1.html#) S.)
By: Stewart Kenyon, Howard M. Resh(Foreword)
ISBN: 1550133756
Publisher: Key Porter Books - 2005-02-05
Paperback | Rev&Updtd Edition | 146 Pages | List Price: $14.95 (USD) | Sales Rank: 331521

Amazon Review
I borrowed this book from the library, learned many useful things from it, but also found it maddeningly sketchy and incomplete. Thinking that a new edition would improve things, I ordered this one, but there is very little difference between versions.
A short, introductory text for beginners can get away with describing "how-to" while going light on "why-to," but only if the instructions are error-free and complete. The authors would have been better to leave out the extensive sections on history and commercial methods and concentrate purely on simple systems suitable for the home. They could also have explained a little more why things are done the way they are.

For example: many pages are devoted to the description of methods for circulating nutrient solution, either by hand or automatically. Why nutrients are circulated is barely mentioned. The reader is left wondering why a constant flow of the same nutrient solution is better than just leaving the solution where it is. (Answer: for the same reason that blood circulates.)

So, a maddening book, but still a useful one. I used it to design some cedar window-boxes, fed by inverted 2-litre soda bottles that look like enormous IVs.

After modifying my design to account for the authors' nearly-fatal omission that their choice of growing medium, perlite, is actually lighter than water (!), the tomatoes and herbs exploding out of my boxes now block the sun, and the neighbours are jealous of my IV-covered walls.


Amazon Categories
Gardening
Gardening / Horticulture
Gardening/Plants
Hydroponics
Hydroponics (Soilless Cultivation)
Techniques
Gardening / Techniques

http://www.ext.vt.edu/pubs/envirohort/426-084/426-084.html
http://mihd.net/1.336/Hydroponics.pdf.html