Nutritious Coconuts Quiz Quiz

Explore the essentials of coconut nutrition in agriculture. Learn about key nutrients, soil health, deficiencies, and practices that impact coconut growth and yield.

1. Primary Nutrient for Coconut Growth

   Which nutrient is most critical for high yield in coconut cultivation, supporting both nut development and healthy fronds?

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

   Explanation: Potassium is vital for coconut trees, influencing nut size, oil content, and strong frond development. Calcium is important for cell structure but is not the main driver of yield. Boron supports reproductive growth but only in trace amounts. Iron prevents chlorosis but does not directly control yield or overall tree health.

2. Nutrient Deficiency Symptoms

   A coconut tree displays yellowing and drying of older leaves while younger leaves remain green. Which nutrient deficiency is most likely responsible?

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

   Explanation: Nitrogen deficiency commonly causes older coconut leaves to yellow and dry while younger ones stay green. Zinc and copper deficiencies more often impact new growth, causing stunted or distorted leaves. Magnesium deficiency typically creates yellow bands along leaf margins, but not the overall yellowing of old leaves.

3. Organic Matter and Soil Fertility

   In sustainable coconut farming, why is adding organic matter such as composted coconut husks to the soil beneficial?

   1. It directly supplies potassium only
   2. It makes soil more acidic
   3. It improves soil structure and retains nutrients
   4. It eliminates all pests

   Explanation: Adding organic matter like composted husks enhances soil structure, moisture retention, and overall fertility. While husks do contain some potassium, their main role is broader. Making soil more acidic is not a universal impact, and organic matter does not guarantee elimination of all pests.

4. Micronutrient Importance in Coconuts

   For healthy coconut seedling development, which micronutrient is essential to prevent 'button shedding' (premature nut drop)?

   1. Sulfur
   2. Phosphorus
   3. Boron
   4. Manganese

   Explanation: Boron is crucial for coconut reproductive processes and helps prevent button shedding. Sulfur and manganese are needed for growth and enzyme function but are not directly involved with nut retention. Phosphorus mainly supports root development rather than fruit set.

5. Fertilizer Timing for Maximum Impact

   In coconut plantations, when is the most effective time to apply fertilizers to maximize absorption and minimize nutrient loss?

   1. At onset of monsoon rains
   2. At night throughout the year
   3. During fruit harvest
   4. During the dry season midday

   Explanation: Applying fertilizers at the start of monsoon ensures adequate soil moisture, promoting nutrient uptake and reducing loss by runoff or volatilization. Applying during the dry season or at night can lead to poor absorption. Fertilizing during harvest is unrelated to optimal nutrient uptake.