What suggestion would you give to a farmer to reduce the use of fertilisers? Remember that nitrogen the in major component of fertilisers is essential for growth of plants.
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What suggestion would you give to a farmer to reduce the use of fertilisers? Remember that nitrogen the in major component of fertilisers is essential for growth of plants.
✔The question is more important in relation to soil-plant relationships and environment than crop production alone. Because excessive use of fertilizer affects soil quality and environment, such as water pollution through runoff, causing excessive richness of nutrients in a lake or other body of water (i.e. eutriphication) and pollution of the atmosphere as gas emission (e.g N2O). Continuous and excessive applications of nitrogen fertilizers containing sulfates (e.g. ammonium sulfate and ammonium sulfate nitrate) cause and exacerbate soil acidity, particularly in humid tropical soils.
Excessive uptake of nutrients (e.g. nitrate) by plants may also cause undesirable effects on human health. Another example, excessive use of nitrogen fertilizers on the production of malt barley causes undesirable effect on the quality and amount of malt extracts and brewing process, which in turn affects the quality of the beer. Overall, as mentioned above if not properly managed continuous application of chemical fertilizers may have adverse effects on soil health, plant growth and quality, and the environment. So, optimum and balanced fertilization based on soil test and crop requirement is advisable for sustainable agricultural productivity, and soil, crop and environmental quality.