Cat Moon

Hydroponics is a science that studies landless crops. When talking about hydroponics tends to associate with Japan as a high technology holder, but this is not necessarily true. Hydroponics is not a modern technique, but an ancestral technique; in antiquity there was culture and civilizations that used it as a means of subsistence. For example hydroponics had a great boom in World War II: the American armies in the Pacific were supplied in hydroponic form. On the island of Hawaii, in Iwo Jima; even when the United States occupied Japan, large hydroponic boats were made to supply their soldiers. From there was born hydroponics, in Japan: came with World War II, and the Japanese, because of lack of space and water, developed the North American technology to amazing levels. Dr. William F. Gericke of the University of California in 1920 extended his laboratory experiments and works on plant nutrition to practical crops in large-scale commercial applications.

To these nutriculture systems he called them "hydroponics" The word was derived from two Greek words, hydro, meaning water and put means labor; literally "working in water." His work is considered the basis for all forms of hydroponic cultivation, although it was mainly limited to water culture without the use of ingrained medium.

Many of today's hydroponic methods employ some type of substrate such as gravel, sand, pumice, sawdust, expansive clays, coals, rice husks, etc. to which are added a nutrient solution containing all the elements essential for the normal growth and development of the plant.

Advantages of hydroponic cultivation:

Free crops of parasites, bacteria, fungi and pollution. Reduced production costs Allows production of certified seed. Independence of weather phenomena. Less space and capital for increased production Water saving, which can be recycled Saving fertilizers and insecticides Avoid agricultural machinery (tractors, tractors, etc.) Cleaning and hygiene in crop management. Highly automated.

Fulfill 2 essential functions:

  • Anchor and grasp roots protecting them light and allowing them to breathe.
  • Contain the water and nutrients that plants need.

The substrate components granules must allow circulation of air and solution nutritious Those that allow the presence between 15% and 35% of air and between 20% and 60% of water in relation to the total volume are considered good. Many times it is useful to mix substrates, looking for some to contribute what they lack to others, taking into account the following aspects:

  • Moisture retention.
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  • Physically stable
  • Chemically inert
  • Biologically inert mind
  • Excellent drainage
  • Lightweight
  • Low-cost
  • High availability.

In hydroponic crops it is essential to use an irrigation system to supply the water needs of plants and supply the necessary nutrients. Irrigation systems that can be used range from a manual with watering to the most sophisticated with automatic dosing of nutrients, pH and automatic irrigation controller. It consists of a tank for water and nutrients, water pipes and drippers or sprinklers. The tank must be inert with respect to the nutrient solution and easy to clean, maintain and disinfect. The criterion for selecting the size may vary according to the crop, locality, nutrient solution control method, etc. The smaller it is, the more frequent the need to control its volume and composition. The location of the tank will depend on the situation of the crop. In case of watering by gravity, it should have sufficient height to achieve good pressure in the drippers, if irrigated using a pump, the tank can be underground. PVC pipes and polyethylene hoses are the most economical. The diameter will depend on the flow and length of the section.

Irrigation systems:

Localized or drip irrigation:

Irrigation located consists of applying water to each pot by means of a microtube provided with a low flow outlet. It is one of the most used methods. The water is carried to the foot of the plant by means of hoses and poured with droppers that leaves it with a determined flow. Through this system, crop production is increased, salinity damages are reduced, the growing season is shortened, and phytosanitary conditions are improved.

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Those who could benefit from this course include short-term or career missionaries, international project volunteers (e.g. Course participants will gain an introduction to aspects of poverty and community development and an orientation to ECHO.

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Irrigation by subirrigation

Irrigation is an irrigation technique that consists of supplying water to the base of the pot. This contribution is made by filling water from a tray where the pots are placed. The filling can be done either by lifting the water sheet from the tray or by flowing water through channels.

So you can grow tomato, lettuce, cabbage, pepper, cucumber, spinach, strawberries, stevia , Celery, Eggplant, Onion, Cauliflower, Melon, Rabanito, Cabbage and much more ...

Later I will explain to you how you are going to build a place for you to have your own vegetables. next ... .