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Fertilizers
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are substances added to the soil sprayed on leaves of plants to help them grow better or in some cases faster. Plants need twenty essentail elements to help them grow. Plants make carbohydrates. A plant needs nitrogen, phosphorus, potassium, calcium, sulfur, and magnesium the most to grow healthy. Most soils naturally contain enough trace ele ....
Middle of paper ....n a year. This is eight times more than what farmers used in 1950.
The most widely used fertilizer is pure ammonia. It is kept in liquid form under pressure in steel tanks. Three solid nitrogen are ammonium sulfate, ammonium nitrate, and ammonium phosphate. Two common phosphorus are superphosphate and triple superphosphate. Phosphorous ferti.... |
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Page count: 3 |
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