Crop Production I - JSS2 Agricultural science Past Questions and Answers - page 2
How does land preparation influence the success of crop production?
By promoting excessive ploughing
By discouraging seed germination
By providing a suitable environment for seed germination
Land preparation has no impact on water management
What consequences may arise from poor water management in crop production?
Enhanced crop yield
Improved root development
Reduced crop growth, yield, and overall productivity
Water management has no impact on weed control
How can effective weed control positively impact crop production?
By encouraging competition for nutrients, sunlight, and water
Weed control has no impact on crop husbandry
By preventing interference with crop growth, ensuring optimal yield
To promote weed growth for biodiversity
What considerations should farmers take into account when selecting seeds for crop production?
Choosing seeds randomly without evaluating viability or disease resistance
Ignoring seed quality
Considering factors such as seed viability, purity, and disease resistance
Seed selection has no impact on water management
What considerations should farmers take into account when selecting seeds for crop production?
Choosing seeds randomly without evaluating viability or disease resistance
Ignoring seed quality
Considering factors such as seed viability, purity, and disease resistance
Seed selection has no impact on water management
How does effective land preparation contribute to creating a suitable environment for seed germination, root development, and nutrient absorption?
Land preparation is crucial in crop production as it creates an optimal environment for seed germination, root development, and nutrient absorption. Proper land preparation involves activities such as ploughing, harrowing, and levelling, which help break up soil compaction, improve soil aeration, and facilitate water infiltration. This promotes seed-to-soil contact, allowing seeds to germinate efficiently.
How does providing an optimal amount of water contribute to the growth, development, and overall yield of crops?
Water management plays a critical role in crop production as it directly influences plant growth, development, and yield. Providing an optimal amount of water ensures that crops receive sufficient moisture for metabolic processes like photosynthesis, transpiration, and nutrient uptake. Water deficiency can lead to stunted growth, reduced yields, and even crop failure, while excess water can cause root suffocation, waterlogging, and nutrient leaching.
How do considerations such as seed viability, purity, and disease resistance contribute to successful crop cultivation?
Seed selection is a critical aspect of crop production, with factors such as seed viability, purity, and disease resistance playing key roles in successful crop cultivation. Seed viability refers to the ability of seeds to germinate and produce healthy plants under favourable conditions, ensuring a high germination rate and uniform crop establishment. Seed purity ensures that seeds are free from contaminants, ensuring genetic integrity and uniformity in crop characteristics. Disease-resistant seeds contain genetic traits that protect plants from common pathogens, reducing the risk of crop loss due to diseases.
How does effective weed control prevent interference with crop growth, ensuring optimal yield?
Weed control is essential in crop production as weeds compete with crops for resources such as sunlight, water, and nutrients, reducing crop yields and quality. Effective weed control methods, including mechanical, cultural, and chemical techniques, help prevent weed interference and minimise crop yield losses. Mechanical methods such as hand weeding and cultivation physically remove weeds from the field, while cultural practices like crop rotation and mulching suppress weed growth and promote crop competitiveness. Chemical weed control involves the use of herbicides to selectively target and control weeds while minimising crop damage.
How do these practices, including pest and disease control, contribute to the well-being and productivity of crops?
Crop husbandry practices play a crucial role in maintaining crop health and productivity in agriculture. Practices such as proper crop rotation, timely planting, and balanced fertilisation promote soil fertility, nutrient availability, and overall plant vigour, reducing susceptibility to pests and diseases. Pest and disease control measures, including cultural, biological, and chemical methods, help manage pest populations and reduce disease incidence, minimising crop damage and yield losses.