5. Why
are fertilizers not good for the soil?
5. what is formula name of lime stone
Answers
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Explanation:
Fertilizer are not good for soil because they also have a harmful effect on the environment. They contain synthetic chemicals that are not biodegradable. They can cause both soil and water pollution.
Answer:
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Explanation:
Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate. Additional chemicals vary depending on the mineral source and may include calcium oxide. Unlike the types of lime called quicklime (calcium oxide) and slaked lime (calcium hydroxide), powdered limestone does not require lime burning in a lime kiln; it only requires milling. All of these types of lime are sometimes used as soil conditioners, with a common theme of providing a base to correct acidity, but lime for farm fields today is often crushed limestone. Historically, liming of farm fields in centuries past was often done with burnt lime; the difference is at least partially explained by the fact that affordable mass-production-scale fine milling of stone and ore relies on technologies developed since the mid-19th century.
The effects of agricultural lime on soil are:
it increases the pH of acidic soil (the lower the pH the more acidic the soil); in other words, soil acidity is reduced and alkalinity increased[1]
it provides a source of calcium and magnesium for plants
it permits improved water penetration for acidic soils
it improves the uptake of major plant nutrients (nitrogen, phosphorus, and potassium) of plants growing on acid soils.[2]
Lime may occur naturally in some soils but may require addition of sulfuric acid for its agricultural benefits to be realized. Gypsum is also used to supply calcium for plant nutrition. The concept of "corrected lime potential"[3] to define the degree of base saturation[clarification needed Explain] in soils became the basis for procedures now used in soil testing laboratories to determine the "lime requirement" of soils.[4]
Other forms of lime have common applications in agriculture and gardening, including dolomitic lime and hydrated lime. Dolomitic lime may be used as a soil input to provide similar effects as agricultural lime, while supplying magnesium in addition to calcium. In livestock farming, hydrated lime can be used as a disinfectant measure, producing a dry and alkaline environment in which bacteria do not readily multiply. In horticultural farming it can be used as an insect repellent, without causing harm to the pest or plant.
Spinner-style lime spreaders are generally used to spread agricultural lime on fields.
Agricultural lime is injected into coal burners at power plants to reduce the pollutants such as NO2 and SO2 from the emissions