The question asks to identify the agricultural practice that involves growing different crops in a planned sequence on the same field over successive seasons to maintain soil fertility. We need to evaluate each option based on its definition and impact on soil fertility.
D) Crop rotation — This practice involves cultivating different types of crops in a planned sequence on the same land over successive growing seasons. It is specifically designed to maintain or improve soil fertility, control pests and diseases, and reduce soil erosion. For example, growing a nitrogen-fixing legume crop after a cereal crop helps replenish nitrogen in the soil.
The question asks to identify the agricultural practice where two or more crops are grown simultaneously on the same field without a definite row pattern, primarily to reduce the risk of complete crop failure. We need to evaluate each option based on its definition.
A) Mixed cropping accurately describes the practice of growing two or more different crops simultaneously on the same field without a definite row pattern, primarily to reduce the risk of complete crop failure.
The question asks to identify the agricultural practice where two or more crops are grown simultaneously in a definite, alternating row pattern on the same field. We need to evaluate each option based on its definition in agricultural science.
Correct Option: C) Intercropping is the agricultural practice that involves growing two or more crops simultaneously in a definite, alternating row pattern on the same field. This method maximizes land use, reduces pest and disease incidence, and improves soil fertility.
The question asks for the term describing the continuous practice of growing the same single crop on a piece of land, season after season, without any rotation. We need to identify the agricultural practice that matches this description.
Correct Option: B) Monoculture is the practice of growing a single crop or plant species over a large area and for multiple seasons. This continuous cultivation of the same crop depletes specific nutrients from the soil, increases the risk of pest and disease outbreaks specific to that crop, and can reduce biodiversity.
The question asks to identify the term for unwanted plants that grow alongside cultivated crops and negatively impact crop yield. We need to evaluate each option based on its definition in agriculture.
D) Weeds are unwanted plants that grow alongside cultivated crops, competing for nutrients, water, and light, and reducing crop yield. This definition precisely matches the description provided in the question.
The question asks for the specific chemical substances used to control and destroy unwanted weeds in cultivated crops. We need to identify the correct term from the given options.
Correct Option: C) Weedicides (herbicides) are chemical substances specifically used to control and destroy unwanted weeds growing among cultivated crops. They are crucial for protecting crop yields by eliminating competition from weeds.