Treating the salinity of water and soil in the arable lands
Published: 03:07 PM,Jul 13,2021 | EDITED : 07:07 PM,Jul 13,2021
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Farming is found to be a source of relaxation and stress relief. Given the fast pace of modern life, it’s perhaps unsurprising that people often discover that slowing down and getting back in touch with nature is a great way to keep stress under control. However, people complain that some lands are no suitable for agriculture and they cost them a fortune to treat. The following article indicates the efforts of the ministry of Agricultural Wealth, Fisheries and Water Resources in solving the problem.
The Ministry stated that the arable lands in the Sultanate are limited, estimated at 5.29 million acres only, representing only 7 percent. 1.88 million acres are classified as arable lands, and 3.41 million acres are marginal lands characterized by low productivity or they require production stimulus in larger quantities and therefore Its economic returns are low.
The ministry indicated that the increase in salinity leads to a decrease in the productivity of field crops and to an increase in losses as a result of the increased costs of extracting larger quantities of irrigation water to ensure that the soil is free of salt. It also indicated that the availability of water resources is the most important factor in the agricultural sector as the agricultural sector consumes about 90% of the renewable water resources in the Sultanate. The National Water Resources Plan has estimated that the agricultural sector consumes about 16% more than the available renewable water resources annually.
The ministry stated that the increased use of groundwater has adversely affected its quality in areas near the sea, and this directly requires reducing the use of fresh groundwater in areas affected by salinity. salinity treatment is one of the difficult operations, and therefore work must be done to control and coexist with the salts in the soil so that it does not exceed the permissible limits by integrating agricultural operations such as plowing, fertilizing, irrigation and drainage.
the salinity of irrigation water affects soil fertility through the accumulation of dissolved salts on the surface of the soil and in the root area, according to the type of soil. The use of saline water for irrigation, especially in clay lands, leads to the demolition of soil construction and makes it less permeable and unventilated. the salinity of irrigation water affects the productivity of plants; as agricultural crops differ in their sensitivity to dissolved salts in irrigation water.
the salinity of soil water should remain at the level of salinity of irrigation water when applying the best irrigation management systems in the coastal areas of the Sultanate. there are two different types of salinity problems in the Sultanate. The first is soil salinity in the governorates that have an irrigation source of fresh water. this problem can be overcome by improving irrigation and drainage management systems using good water quality.
The second type is the problem of salinity arising from the extraction of a large amount in excess of the natural limit of groundwater in coastal areas and it occurs as a result of the flow of sea water to the coastal aquifers, which in turn leads to the salinization of irrigation water sources.
The Ministry stated that the arable lands in the Sultanate are limited, estimated at 5.29 million acres only, representing only 7 percent. 1.88 million acres are classified as arable lands, and 3.41 million acres are marginal lands characterized by low productivity or they require production stimulus in larger quantities and therefore Its economic returns are low.
The ministry indicated that the increase in salinity leads to a decrease in the productivity of field crops and to an increase in losses as a result of the increased costs of extracting larger quantities of irrigation water to ensure that the soil is free of salt. It also indicated that the availability of water resources is the most important factor in the agricultural sector as the agricultural sector consumes about 90% of the renewable water resources in the Sultanate. The National Water Resources Plan has estimated that the agricultural sector consumes about 16% more than the available renewable water resources annually.
The ministry stated that the increased use of groundwater has adversely affected its quality in areas near the sea, and this directly requires reducing the use of fresh groundwater in areas affected by salinity. salinity treatment is one of the difficult operations, and therefore work must be done to control and coexist with the salts in the soil so that it does not exceed the permissible limits by integrating agricultural operations such as plowing, fertilizing, irrigation and drainage.
the salinity of irrigation water affects soil fertility through the accumulation of dissolved salts on the surface of the soil and in the root area, according to the type of soil. The use of saline water for irrigation, especially in clay lands, leads to the demolition of soil construction and makes it less permeable and unventilated. the salinity of irrigation water affects the productivity of plants; as agricultural crops differ in their sensitivity to dissolved salts in irrigation water.
the salinity of soil water should remain at the level of salinity of irrigation water when applying the best irrigation management systems in the coastal areas of the Sultanate. there are two different types of salinity problems in the Sultanate. The first is soil salinity in the governorates that have an irrigation source of fresh water. this problem can be overcome by improving irrigation and drainage management systems using good water quality.
The second type is the problem of salinity arising from the extraction of a large amount in excess of the natural limit of groundwater in coastal areas and it occurs as a result of the flow of sea water to the coastal aquifers, which in turn leads to the salinization of irrigation water sources.