Green Gram Nutrient Mastery Quiz Quiz

Explore essential facts about green gram nutrition, soil requirements, and important nutrients in agriculture. Perfect for learners seeking a well-rounded understanding of green gram's nutritional role and management.

1. Major Nutrient Content in Green Gram

   Which macronutrient is green gram particularly recognized for providing in human diets and crop rotations?

   1. Protein
   2. Fat
   3. Vitamin C
   4. Calcium

   Explanation: Green gram is a rich source of protein, both for human consumption and as a component in crop rotations to improve soil health. While it contains vitamin C, the amount is not its most notable feature compared to legumes. Fat and calcium are present in much lower quantities and are not the defining nutrients of green gram.

2. Optimal Soil pH for Green Gram

   For optimal growth and nutrient uptake, what is the ideal soil pH range for cultivating green gram?

   1. 8.0–9.5
   2. 4.0–5.0
   3. 5.0–5.5
   4. 6.0–7.5

   Explanation: Green gram thrives best in soils with a pH range of 6.0–7.5 as it ensures proper nutrient availability. A pH of 4.0–5.0 or 5.0–5.5 is too acidic and can hinder growth, while 8.0–9.5 is too alkaline, reducing micronutrient availability.

3. Nutrient Deficiency Impact on Green Gram

   Which deficiency can lead to poor nodulation and reduced nitrogen fixation in green gram fields?

   1. Magnesium
   2. Potassium
   3. Phosphorus
   4. Zinc

   Explanation: Adequate phosphorus is vital for root and nodule development, supporting nitrogen fixation in green gram. Zinc and magnesium are important for various plant functions but do not directly influence nodulation. Potassium deficiency affects overall growth but less directly impacts nodulation.

4. Green Gram as a Soil Enricher

   Why is green gram commonly used in crop rotation to improve soil nutrient status?

   1. It fixes atmospheric nitrogen
   2. It extracts heavy metals
   3. It adds organic pesticides
   4. It depletes the soil phosphorus

   Explanation: Green gram engages in biological nitrogen fixation, enriching soils with usable nitrogen for future crops. It does not deplete phosphorus or intentionally add pesticides or function primarily as a heavy metal extractor.

5. Micronutrient Importance in Green Gram Nutrition

   Which micronutrient is essential in small amounts for green gram enzyme activation and seed production?

   1. Molybdenum
   2. Sodium
   3. Chlorine
   4. Aluminum

   Explanation: Molybdenum is critical for enzyme systems involved in nitrogen metabolism, affecting seed formation and yield. Sodium and chlorine are required in trace or non-essential quantities, while aluminum is not beneficial and can be toxic to plants.