Barack Obama: White House Kitchen Garden, From here to the table.

                                     

Barack Obama 2013/08/24

    Does the U.S. President- Barack Obama eat the safe and healthy food from white house kitchen garden? Not really, usually plants with different viruses are not as good as they look.

    Plants sometimes get sick. Vegetable plants usually are capable of fending off disease-causing bacteria, viruses, and fungi. But if conditions favor the disease and your plants are weak, the disease sometimes gains the upper hand, often leading to early death of the plants. The tips below will help you minimize the effects of plant diseases on your garden by employing two basic strategies:

Choose resistant or tolerant varieties

This is the easiest and most important way to reduce diseases in your garden. Resistant varieties resist infection by a particular disease agent and show little or no disease.

Buy treated seed

Seed may come pretreated with a dusting of fungicide. This coating will help prevent the seed from rotting in the soil. Make sure seeds, transplants, and propagating material are disease-free.Start with healthy plant material to help plants get established quickly. Unhealthy plant material will never yield as much as healthy material. Worse, plants may die while they are still young.

Choose a sunny, well-drained location

Most vegetable crops thrive in full sun. Shady, poorly drained sites produce weak, spindly plants that are easy targets for disease organisms.

Improve the soil

A soil that is favorable to healthy root development supports the growth of healthy plants.

                                                  

Water plants carefully

For best growth, plants usually require about 1 inch of water per week. If you don't get enough rain, water your garden.

Don't over- or under-fertilize

Plants that are fertilized properly at planting and during the season will grow better and be healthier.

Space plants to allow air circulation

High humidity and moisture favor the development of plant diseases. Allowing enough room for plants to grow and for air to circulate and encourages rapid drying of plants after rain.

Clean up debris

Always remove and destroy or discard (in the trash) plant material that shows signs of disease. Work in the garden when plants are dry because moisture on plants aids the spread of diseases.
 

Plant a fall cover crop

After cleaning up the garden, sow a cover crop such as winter rye that will grow that fall and protect the topsoil during winter.

Rotate crops

Rotate plants to different areas of the garden to help reduce losses caused by soil-borne disease agents.
                                

Garden Hydroponics

Hydroponic growing methods can provide high yields of vegetables while avoiding soil diseases, nematodes and weeds. It is the most efficient, scientific way to avoid toxic plants. Hydroponics generally refers to growing plants using nutrient solution (fertilizer + water)in situations where a growing medium is employed instead of soil as a substrate for roots. Water and fertilizer consumption is minimized in closed hydroponic systems.
                                           

                   Hydroponics System from Chicfarm LED grower, http://www.chicfarm.net