Bhindi Booster Quiz Quiz

Challenge your understanding of optimal fertilization practices for bhindi (okra) cultivation with this comprehensive quiz. Explore key nutrient requirements, application timings, and efficient methods for healthy bhindi crops.

1. Nutrient Requirements for Bhindi

   Which of the following fertilizer schedules supplies the recommended basal dose of NPK (Nitrogen-Phosphorus-Potassium) for bhindi cultivation per hectare?

   1. 100 kg Nitrogen, 60 kg Phosphorus (P2O5), 50 kg Potassium (K2O)
   2. 200 kg Nitrogen, 120 kg Phosphorus (P2O5), 100 kg Potassium (K2O)
   3. 5 kg Nitrogen, 10 kg Phosphorus (P2O5), 15 kg Potassium (K2O)
   4. 50 kg Nitrogen, 20 kg Phosphorus (P2O5), 20 kg Potassium (K2O)

   Explanation: The recommended basal dose for bhindi is 100 kg N, 60 kg P2O5, and 50 kg K2O per hectare to support optimal growth. Option B exceeds typical recommendations and risks fertilizer runoff. Option C under-supplies key nutrients, limiting yield. Option D is far too low and not suitable for field conditions.

2. Fertilizer Application Timing

   At what stage should half of the recommended nitrogen fertilizer be top-dressed in a bhindi field to maximize yield?

   1. After flowering begins
   2. At sowing time
   3. At 30–35 days after sowing
   4. At seedling emergence (7 days after sowing)

   Explanation: Half of the recommended nitrogen is typically applied at sowing, and the remainder is top-dressed around 30–35 days after sowing to support vegetative growth. Applying all at sowing may lead to losses (Option A). Applying after flowering or at emergence does not align with the crop's nutrient uptake pattern (Options C and D).

3. Deficiency Symptoms

   A bhindi crop displays stunted growth and older leaves turning yellow. Which nutrient is most likely deficient?

   1. Iron
   2. Potassium
   3. Nitrogen
   4. Calcium

   Explanation: Nitrogen deficiency often causes stunted growth and yellowing of older leaves due to its mobility within the plant. Potassium deficiency shows as chlorosis on leaf margins, calcium affects new growth, and iron deficiency appears on young leaves first.

4. Role of Organic Manures

   Why is farmyard manure (FYM) often recommended to be applied to bhindi fields before sowing?

   1. It protects roots from pests directly
   2. It acts as a pesticide substitute
   3. It provides immediate, high levels of nitrogen
   4. It enriches soil organic matter and improves nutrient availability over time

   Explanation: FYM is added for its role in improving soil structure and gradually releasing nutrients. It does not provide high immediate nitrogen (Option A), nor does it directly protect from pests or act as a substitute for pesticides (Options C and D).

5. Micronutrient Management

   Which micronutrient, when deficient, most commonly leads to poor fruit set and blossom end rot in bhindi?

   1. Boron
   2. Zinc
   3. Copper
   4. Magnesium

   Explanation: Boron is essential for proper fruit and seed development; its deficiency can cause poor fruit set and blossom end rot. Zinc deficiency is more linked with stunted growth, copper with leaf distortion, and magnesium typically causes interveinal chlorosis rather than fruit issues.