Challenge your agricultural knowledge with this medium-difficulty quiz on effective crop management strategies, practices, and concepts to optimize yield and sustainability.
Which practice helps improve soil structure and nutrient availability before sowing a wheat crop?
Explanation: Tillage loosens the soil and integrates organic matter, which enhances soil structure and nutrient access for plants. Monocropping refers to growing a single crop year after year, which can deplete soil nutrients. Flood irrigation is primarily a watering method, not soil preparation. Aerial spraying applies fertilizers or pesticides but does not physically modify soil structure.
What is a key feature of integrated pest management (IPM) in controlling pests in a maize field?
Explanation: IPM focuses on the combined use of different pest control strategies for effective and sustainable management. Solely using chemical pesticides may lead to resistance and environmental harm. Leaving the field fallow controls weeds but is not a holistic pest management strategy. High irrigation frequency mainly impacts water supply, not pest populations.
Why is rotating legumes and cereals in crop cycles considered beneficial for soil health?
Explanation: Legumes fix atmospheric nitrogen through symbiotic bacteria, enriching soil nutrient levels for subsequent cereal crops. Crop rotation actually reduces weed and disease pressure instead of increasing them. Waterlogging is not a direct result of crop rotation.
Which irrigation method is most efficient for reducing water wastage in vegetable farming?
Explanation: Drip irrigation delivers water directly to plant roots, minimizing evaporation and runoff. Surface irrigation can cause significant water loss, while sprinkler systems lose some water to evaporation. Rain-fed systems rely on natural precipitation and do not control distribution efficiency.
What is the main reason farmers remove weeds during the early growth stages of crops like rice or maize?
Explanation: Removing weeds early prevents competition for essential resources like nutrients, water, and sunlight, allowing crops to establish well. While some weeds attract insects, this is not their main effect. They generally do not benefit crop growth and may not affect soil drying directly.