Green Gram Nutrient Know-How Quiz

Explore key aspects of green gram's nutritional profile, its role in soil health, and the impact of cultivation on agriculture. This quiz covers essential nutrients, benefits, and proper management techniques for green gram farming.

1. Protein Content in Green Gram

   Which of the following best represents the approximate protein content found in green gram seeds by dry weight?

   1. 55%
   2. 24%
   3. 40%
   4. 8%

   Explanation: Green gram seeds contain about 24% protein by dry weight, making them a valuable crop for both human and animal nutrition. The 8% option underestimates the value, while 40% and 55% overestimate typical protein levels found in green gram.

2. Role in Nitrogen Fixation

   How does cultivating green gram benefit soil fertility in terms of nitrogen content?

   1. It releases harmful nitrates into the soil
   2. It absorbs all soil nitrogen without replacing it
   3. It fixes atmospheric nitrogen through symbiotic bacteria
   4. It depletes soil nitrogen rapidly

   Explanation: Green gram forms symbiotic relationships with Rhizobium bacteria, allowing it to fix atmospheric nitrogen and enrich soil fertility. Absorbing all soil nitrogen or depleting nitrogen would harm soil health, while the release of harmful nitrates is incorrect.

3. Mineral Content Importance

   Green gram is a good source of which essential mineral that plays a crucial role in human bone formation?

   1. Calcium
   2. Aluminum
   3. Sodium
   4. Lead

   Explanation: Calcium is essential for bone formation and green gram contains a moderate amount, making it beneficial for diets. Sodium is present in much smaller quantities, and both lead and aluminum are not essential minerals for humans and can be harmful in excess.

4. Effect on Soil Organic Matter

   What is a common effect of incorporating green gram crop residues back into the soil after harvest?

   1. Reduces soil moisture retention
   2. Increases soil organic matter
   3. Promotes soil salinity
   4. Leaches soil micronutrients

   Explanation: Returning green gram residues increases soil organic matter, improving soil structure and fertility. Leaching micronutrients or promoting salinity is not typical, and reducing moisture retention is incorrect; organic matter actually helps retain moisture.

5. Vitamin Profile of Green Gram

   Which vitamin is notably present in green gram, contributing to metabolic and nervous system health?

   1. Vitamin D
   2. Vitamin C
   3. Vitamin B1
   4. Vitamin K

   Explanation: Green gram is a good source of vitamin B1 (thiamine), important for metabolism and nerve function. Vitamin D and K are present in much lower amounts, and while there is some vitamin C, B1 is most notable in the context of these options.