Agronomy

Which factor is most critical to consider before deciding the timing of paddy cultivation?

• Photoperiod requirements
  

• Land preparation and water availability
  

• Crop rotation strategies
  

• Fertilizer type

What is the primary reason farmers plant winter wheat in late September to October in temperate regions?

• To ensure dormancy during winter
  

• To avoid pest infestation
  

• To maximize nitrogen uptake
  

• To protect against water stress

Which developmental phase of paddy is susceptible to water stress, requiring prioritized irrigation?

• Ripening and harvesting

• Vegetative growth

• Germination and milking

• Flowering and grain filling

Which environmental signal is analyzed to categorize plants as short-day, long-day, or day-neutral?

• Soil nutrient levels

• Water availability

• Temperature variations

• Photoperiod requirements

Why is temperature critical during the germination phase?

• It ensures proper seed activation.

• It determines photoperiod sensitivity.

• It affects the plant's flowering cycle.

• It regulates crop rotation strategies.

What informed decision do farmers make based on photoperiod requirements of crops?

• Rotating nitrogen-rich crops

• Adjusting irrigation schedules

• Applying split doses of fertilizers

• Selecting planting dates

How does crop rotation improve soil health in legume-cereal systems?

• By fixing atmospheric nitrogen in the soil

• By reducing the need for irrigation

• By minimizing pest outbreaks during flowering

• By altering photoperiod responses

During which phase is pest and disease control most critical in rice crops?

• Germination and tillering

• Flowering and grain filling

• Ripening and harvesting

• Vegetative growth and panicle initiation

What strategy helps farmers reduce synthetic fertilizer costs in cereal crops?

• Applying split doses during flowering

• Adjusting irrigation schedules

• Monitoring temperature variations

• Incorporating legumes into crop rotation

What does understanding the developmental phases of crops enable farmers to do?

• Select high-yield varieties

• Avoid seasonal resource shortages

• Make stage-specific decisions

• Modify photoperiod requirements