Question

Which of the following methods of cultivation will result in the loss of soil fertility?
I) Crop rotation
II). Shifting cultivation
III)Excessive use of chemical fertilizers
A) I and ii only
B) II only
C) I and ii only
D) I, II and I

Answer 1

Hint: Soil fertility is the ability of the soil to provide a proper habitat and supply essential nutrients to plants to obtain high yield. Soil fertility is lost if synthetic chemicals are continuously used for a better yield.

Step by step answer: Soil richness is influenced by specific conditions like profundity of soil, seepage of the dirt, presence of natural issues, pH, presence of supplements and microorganisms. Lack of at least one of these properties can prompt loss of ripeness or decreased fruitfulness. The fundamental explanation behind the decrease of soil richness is credited to intensive farming frameworks. Concentrated agribusiness or industrial horticulture is the most widely recognized technique for crop creation as of now. It depends on high info and yield proportions. This form of agriculture came into being during the period of the Industrial revolution when the use of agricultural techniques highly improved. Fertilizers are easy to use and store. They are water-soluble and easily dissolve in soil. Plants readily absorb them from the soil. Their effect is quick and assured. They result in high crop yield. Fertilizers are generally expensive. Thus, farmers need to get the soil analysis done before administering fertilizers in crop fields. The quality of fertilizer varies with its cost, that is higher the cost superior would be its quality. The high cost of fertilizers puts a burden on the farmers. When there is excessive use of chemical fertilizers and pesticides, the chemical salts accumulate in the soil and affect the quality and fertility of the soil.
Thus, the correct answer is option B.

Note: Soil fertility is the ability of the soil to yield high-quality crops sustainably. Soil fertility is an important factor in agriculture because it helps in the growth of plants by providing proper nutrients. Soil fertility can be increased by crop rotation, using biofertilizers that contain phosphorus and potassium, growing leguminous plants that harbour nitrogen-fixing bacteria.