Hydroponics Growing Without Soil

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food today affected by the methods of Hydroponics of today?

























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The growing media that is used for gardening greatly effects the production of the plants. If sand is used as a medium it should be tested thoroughly for any residue that might cause infected growing medium. The sand should be cleaned at least every three of four weeks. Leaching is also a major step, it is to be done at the end of each crop cycle ( Jones 69-70). Sand that is used for the medium should have sawdust mixed with it to allow for better drainage. The sawdust also makes the sand lighter and not pact together as easy ( Bridwell 86).

Gravel is another medium, it is used more often because it is easier to clean. If gravel is used round, smooth, river-type is preferred. Granitic types are the best because of its hardness. Whatever type of gravel that is purchased must be thoroughly washed and cleaned to get rid of any calcareous on the gravel. The size is ...

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in tomato plants. The fungi can be identified by small patches of spores on the leaves. These grayish spots appear on the older leaves first. On the top of the leaves will appear velvety green or brownish spots. Once these begin to form, the plant should not be moved or the spores will spread through the air to the other plants in the greenhouse. Some fungicides that can be used to control leaf molds are Maneb, Bravo, and Dithane 22 ( Zim 110).

Botrytis is the worst fungus found in tomato plants. Botrytis is a gray mold that not only forms around the base of the stem and destroys it, but also attacks the fruit around the calyx, causing it to rot in a few hours. A cold and wet ...

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