By A. D Stoesz
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Part of the medium becomes soaked, while the other part remains dry. COMPOST - is an earthy smelling almost black crumbly mixture containing decayed plant matter. it is teeming with life and although not necessarily high in nutrients, it provides a rich environment for the roots. It is acidic unless limed. Some commercial composts are nothing more than chopped up dried plant matter. This material may add some organic matter to the soil, but is not the same as real compost. WORM CASTINGS - is compost digested by worms.
3. A two inch square container supports a plant 4"-6". A 4 inch to 1 foot. A 5 inch to 2 feet. A 6 inch to 3 feet. Mature plants do very well in a 6" container. 4. An easy way growers provide more space to the roots is by increasing container depth. Chapter 11 THE PLANTING MEDIUM The growing medium holds the roots firmly so that they can support the plant, and holds the water-nutrient solution and air so that they are available to the plants. It is obvious that the roots are used by the plant to obtain water and nutrients, but they need oxygen too.
An alternative is to use tubes with reflective surfaces. These are made several manufacturers. Often stores do not carry them but will special order them. Reflectors without baffles are very inefficient so light is lost. Baffles direct the light downward. New fluorescent configurations have made it easier to build a garden. Circle tubes and thin tubed 8" doubles screw into incandescent sockets. Although these bulbs are not very efficient they are step up from incandescents. Combinations of circle lights and tubes can illuminate a garden very brightly.