Vegetables: types and diseases

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Vegetables are known to various peoples since ancient times.For example, cabbage is cultivated from the third millennium BC.The production cycle started by the ancient Romans, by which this vegetable has spread to Europe.Around the 9th century BC, he and colonists came to Kievan Rus, and then began to be grown in the more northern areas.Onion, radish and garlic, so widespread in Russia today, first grown in Egypt for several thousand years before our era.

particular flourishing vegetables obtained with the development of navigation, when in America were brought tomatoes, beans, corn, squash, and potatoes.They are well accustomed to the new territories, and today the best example, tomato-based sauces are prepared in Italy.In addition, "vegetable" facilitated the exchange of war ....It is believed that the eggplant and spinach came to Europe during the war of the 7th century, when Spain came from the East, Muslim armies.

Maybe because different vegetables have historically come from different parts of the world, they do not always get along in the garden.Experienced owners know that there is compatibility of vegetable crops, as well as "bad neighborhood."For example, cauliflower, originating in China is considered to be sufficiently serious conflict with the "Native American" tomatoes.While on the other hand, can not be combined with tomatoes and no less "Indian" potatoes or squash.

Vegetables occupy an important place in the diet of any person and the total number of species is such that today is beyond counting.For example, some varieties of tomatoes and their hybrids in Russia five years ago, there were about 1,200 general classification divides vegetables into the following groups:

- leafy green (lettuce, watercress, coriander, fennel, and others.);

- perennial vegetable species (rhubarb, sorrel, asparagus, horseradish, Welsh onion, etc.);

- fruit, including the Solanaceae family (tomato, eggplant, and others.), Pumpkin (cucumber, zucchini, squash, etc.), Legumes (peas, beans, bean, etc.), Mallow, mjatlikovyh (sweet corn);

- onion (leek, onion, garlic, etc.);

- cabbage (savoy cabbage, Brussels sprouts, cabbage, etc.);

- root (radish, beets, carrots, celery, parsley, etc.);

- tuber (yams, Jerusalem artichokes, potatoes).

To vegetables gave a good harvest, we need the right weather conditions and the observance of farming, iefor each type of soil has to be prepared, make the appropriate fertilizers, made by planting or seeding, produced weeding, watering and harvesting at the appropriate time.Also, you need to store the harvest.Otherwise, no farming minutes diseases of vegetables.These include problems with bacteria, fungi, pests, damage and excess or lack of moisture and heat.Today, professionals are known such as the defeat:

- cancer, scab, rot (for potatoes);

- Kila, bacterial blight, gray mold, jaundice (cabbage);

- Black leg, mosaic virus, cercospora blight (beet);

- antaknoz, white rot (for cucumbers), and others.