Aquaculture:

Aquaculture:

 Learn how to prepare a soilless farming system

The establishment of a hydroponics system does not require large investment or high technology to be implemented and operated, nor to large energy, and it provides an important part of healthy and cheap foods.

                        Aquaculture is a system of soilless cultivation.

 Soil has no obvious function in plant survival and growth. It is a nutrient medium and a preservative of water. It can be dispensed with if an alternative medium is found. This is what experts have reached since the 18th century. Soil or what is known as hydroponics. The plant needs water and some nutrients in varying amounts in addition to sunlight. If the need for each plant of water and nutrients is reached, it can be provided in any agricultural medium. In this theory, aquaculture started and flourished, an attempt to exploit some places in the absence of arable soil such as roofs Houses in cities or in cases where the soil can not be exploited for high salinity as in desert areas. There are several forms of aquaculture, but the most important is the network of pipes of suitable sizes, pass through the water loaded with nutrients while planting plant implants in the upper openings along the tube, and the most important components of this system - ads - components of aquatic aquaculture system [icon type = The feeding and discharging basins are two water basins that are fed and fed by one of the nutrients and fertilizers. The discharge basin receives the water after it has left the system and may be used. One basin so that the water out of it and return to it after the completion of the journey within the system. The water pump is pumped through the system and has a relatively low capacity for not having to transfer water to high altitudes. A network of pipes with a diameter of 4-6 inches has holes from the top to place the incense, and these pipes are arranged in the shape of a pipe. Horizontally or in a hierarchical form. In order to operate this network, there is a need for the use of axes and connectors or the use of pipes with a diameter of 1 inch so that the water is transferred from one line of grid lines to another.A seedling for planting contains gravel to hold the seedlings in the holes prepared for that. In order to operate the hydroponics system, it is possible to take advantage of the plastic pipes that are used in the regular water connections for easy openings and provide the appropriate connections to connect them. The following steps can be followed to prepare a watering system to be used in the cultivation of some types of vegetables: Aquaculture system The right place to install the system either on the roof of the house or in its yards, and the lengths of pipes that fit the place are chosen. 2 - If the horizontal system is selected, several lines of pipes are installed so that the end of each line is reached at the beginning of the next, and this is done by the plastic buckles or joints, and pipes of less than 1 inch can be used to transfer water from one line to the next.

3. The beginning of the lines shall be connected to the pump which will transfer the water from the nutrient-rich water tank. The tank can be placed at a higher level of the system. The water will allow the system to flow into the discharge basin and then be returned to the feed basin through the pump at once. 4 - The amount of gravel to install the seedlings in agricultural vessels and then move the ready-made containers to their places in the upper openings of the pipes. 5. The water in the system is changed once or twice a week to ensure that the salts are not concentrated on the roots of the plant as a result of increasing their concentration in irrigation water as well as to increase their nutrient content. 6 - Several varieties of vegetables can be grown and an expert in agriculture can be used to determine the appropriate nutrients for each plant variety. This type of agriculture can be used in cities on the roofs of buildings and in areas with sandy soils that are unsuitable for agriculture and which need great effort to reclaim them. The aquatic system can also be linked to some fish ponds. Fish waste, which provides the plant good food, and there must be a means of protection of plants from the attacks of birds and the high sun in the desert environments. The establishment of a system for aquaculture does not require large investment or high technology for its implementation and operation as it does not need a lot of energy, and if the roofs of buildings were planted in many Arab cities this technology will provide an important part of food for the inhabitants of these cities without the need to import Large amounts of vegetables at high prices. Several global and Arab experiments have proven that aquaculture systems - whether reported here or elsewhere - provide an important part of healthy and inexpensive food