Optimal Okra Nutrition Quiz Quiz

Explore key concepts in fertilizer management for Bhindi (okra) cultivation to help maximize yield and crop health. Tackle nutrient requirements, application methods, and deficiency symptoms relevant to horticultural practices.

1. Basal Fertilizer Dose for Okra

   What is a recommended basal dose of nitrogen (N), phosphorus (P), and potassium (K) per hectare during the planting of Bhindi (okra)?

   1. 20:30:20 kg N:P:K
   2. 120:90:60 kg N:P:K
   3. 90:60:40 kg N:P:K
   4. 60:40:40 kg N:P:K

   Explanation: A basal dose of 60:40:40 kg N:P:K per hectare is commonly recommended for okra to meet its initial nutrient needs. 120:90:60 kg is excessive for okra and more typical of high-demand crops. 20:30:20 kg is insufficient for optimal growth. 90:60:40 kg is higher than needed and not standard for Bhindi.

2. Nitrogen Application Timing in Bhindi

   When is it best to apply nitrogen fertilizer to maximize okra plant growth and yield?

   1. After flowering only
   2. Half at sowing and half after first picking
   3. Only at the time of pod setting
   4. All at sowing

   Explanation: Splitting nitrogen—applying half at sowing and half after the first picking—provides a steady supply during critical growth stages. All at sowing can lead to early loss of N. Application only after flowering or only during pod setting is too late for initial growth phases, reducing effectiveness.

3. Micronutrient Deficiency Symptom

   Which micronutrient deficiency in Bhindi commonly causes yellowing between the veins of older leaves (interveinal chlorosis)?

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

   Explanation: Magnesium deficiency often appears as interveinal chlorosis in older leaves due to its mobility within the plant. Zinc deficiency shows as stunted growth and small leaves, boron affects new growth and fruit set, and calcium deficiency mainly affects young tissues and growing points.

4. Foliar Feeding Utility in Okra

   For what purpose is foliar fertilizer spray most effectively used in Bhindi cultivation?

   1. To quickly correct micronutrient deficiencies
   2. To control insect pests
   3. To supply the main NPK requirements
   4. To irrigate the field

   Explanation: Foliar sprays provide fast correction for micronutrient deficiencies since nutrients are directly absorbed by leaves. They are unsuitable for supplying the full main NPK requirement. Irrigation is not their function, and pest control requires specific pesticides, not fertilizers.

5. Organic Manure Use in Bhindi

   What is the main benefit of applying well-rotted farmyard manure (FYM) before sowing Bhindi?

   1. Direct control of fungal diseases
   2. Improves soil structure and nutrient availability
   3. Only increases soil acidity
   4. Replaces all need for chemical fertilizers

   Explanation: Applying FYM enriches the soil with organic matter, improving structure, moisture retention, and gradual nutrient release. It does not directly control diseases, cannot fully replace chemical fertilizers for nutrient balance, and generally helps buffer soil pH rather than increasing acidity.