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The use of chemical fertilizers and its impact on growth and production
09/9/2018 12:00 am [rtl]Khaled Abdul Hussain Drivel The use of fertilizers is seen to increase significantly in traditional systems, especially nitrogen fertilizers. Nitrogen is an essential nutrient for the construction of organic plant cell compounds and its availability in most of the world's soil is very low and does not meet the need. Demand for the use of chemical fertilizers, especially nitrogen fertilizers, has increased in recent years because of the doubling of global consumption for the purpose of increasing agricultural production and facing the large population growth in the world, especially developing countries. And the importance of the use of chemical fertilizers, especially nitrogen, is a key element for increasing production in the unit area, especially in the soils and non-rich organic matter or those exploited in the manner of soil stress without justification. There should be a balance in the addition of fertilizers, and the insufficient additions lead to delayed maturity as well as the impact on the quality of the yield and excess quantities play a negative role in the quantity and quality, and more than 50 percent of the increase in production due to the use of chemical fertilizers, Which led to the emergence of environmental impacts such as pollution and deterioration of agricultural soils, as well as the health damage to human beings and the addition of non-scientific pollution of groundwater through the deposition of chemical elements, especially nitrogenous fertilizer and nitrate, which has a negative impact on the level Z run. A high percentage of phosphorus p is deposited in the soil after it is difficult to dissolve and is not ready for absorption, and also leads to excessive use of its negative effect in the beneficial microbiology community in the soil, as well as other important disadvantages of increasing the concentration of nitrates in fruits and increasing production costs And lost agricultural products to their desired qualities such as taste, color, smell and impurities contained in chemical fertilizers, which are usually heavy toxic elements and accumulate in plant tissues or washed with wastewater. The use of chemical fertilizers came during the period of the so-called Green Revolution (the period of intensive crop production) ie the sixties of the last century, which led to the emergence of environmental disasters mentioned in short, the pollution of natural resources (air, soil and water) so it was necessary to change the pattern of agriculture and search for security and good alternative was to find a (sustainable agricultural production model), which came to preserve the natural resources of the damage resulting from the previous model (crop production model intensive) .. organic farming is is one of the most important pillars of the new model (sustainable agricultural production model) , a short Wallace Murar production while preserving natural resources and this model came a successful alternative rather than relying on fertilizers biogenic to be complementary to the nutrition program and so as to maintain the fertility of the soil chemical, physical and on the biomass of the existing soil. The researchers and those interested in the agricultural sector focused on the importance of using organic fertilizers and biophysics together to reduce the use of chemical fertilizer gradually and in different combinations, depending on the type of crop and the nature of the soil and others. The international organizations, particularly the Food and Agriculture Organization of the United Nations (FAO), the World Trade Organization (WTO), and other international organizations that support and encourage the sustainable agricultural production model ensure that the natural resources of soil, water and air are maintained while continuing the production process. In cooperation with the Agricultural Training and Extension Service[/rtl] [rtl][You must be registered and logged in to see this link.] [/rtl] |
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