內容簡介 Are you looking for a step-by-step method for improving your gardening skills? Then keep reading...Hydroponics is the method of growing plants without soil by supplying them with a constant nutrient solution. Despite the fact that this method remains fairly unknown outside of a small sector of the horticultural world it has in fact been around for a long time. It is a system that was used extensively in the hanging gardens of Babylon and has been studied extensively by scientists and horticulturists for the last several hundred years.There are many powerful reasons for commercial food growers to use this method but it is also now being used more frequently by the domestic gardener keen to produce a high yield in a small amount of space. Though it is seen primarily as a way of producing crops for the table it is also a method that can be used for the production of ornamental plants.All plants require air, light, and dissolved nutrients to grow. Hydroponics allows for a very precisely controlled amount of nutrients, dissolved in water, to be administered directly to the root system, as the plant requires it. Because the root system is no longer obliged to spread so far in order to attain the nutrients it requires this in turn enables the grower to plant his crops at much higher densities which is just one reason why hydroponic crop yields are so much greater than the more traditional soil planted yields.This book covers the following topics: Is hydroponics worth the while?Advantages and disadvantageDifferent type of hydroponic systemsAssembling the systemNutrition for hydroponic plantsWater maintenance, garden expansionIdeal ph. level for your hydroponics plantsGreenhouse operationSome problems you might encounterGrowing tips and tricks...And much moreThere are a variety of variations on the hydroponic theme and this book will take a look at the main options the gardener has available to them. Though some of the methods might sound overly complicated for the home gardener I advise you to persist because what at first might appear a difficult system to reproduce is in fact surprisingly easy in many cases and the increase in yields will be staggering. You have been given a great deal of information on the different types of systems that have been used often by numerous people. You have been given a detailed description of how to construct, maintain and care for each of these systems.