Explore the nutritional value and requirements of green gram in agriculture, including vital nutrients, soil needs, and health benefits. This quiz supports deeper understanding for growers, students, and enthusiasts of pulse crops.
Which macronutrient is most critical for the vigorous vegetative growth of green gram plants in agricultural systems?
Explanation: Nitrogen is essential for green gram growth, especially for leaf and stem development, as green gram belongs to legume crops known for nitrogen fixation. Potassium aids in stress resistance but is not the prime driver for vegetative growth in this crop. Calcium is vital for cell wall structure but less limiting. Iron is important for chlorophyll but required in much smaller amounts.
Green gram seeds are highly valued in human diets because they are especially rich in which macronutrient?
Explanation: Green gram seeds are an important protein source, especially in vegetarian diets and regions relying on plant-based foods. Starch and sugar are also present but in lower proportion compared to protein, and fats are minimal in green gram seeds.
If green gram leaves show signs of interveinal chlorosis (yellowing between the veins), which micronutrient deficiency is most likely responsible?
Explanation: Interveinal chlorosis is a classic symptom of iron deficiency in green gram and many other crops. Zinc and copper deficiencies may cause other symptoms like stunted growth or leaf distortion. Magnesium deficiency also leads to chlorosis, but it generally starts with older leaves, making iron the best answer here.
For ideal nutrient availability and green gram crop performance, the optimum soil pH should be within which range?
Explanation: A slightly acidic to neutral soil pH of 6.0 to 7.5 is optimal for green gram, as it enhances nutrient uptake and microbial activity. Soils with pH below 6.0 are often too acidic and can limit growth. The ranges 8.0 to 9.0 and 7.8 to 8.5 are alkaline, which can lock up nutrients.
How does green gram benefit soil health in crop rotations, aside from its nutritional value to humans?
Explanation: Green gram forms symbiotic relationships with Rhizobium bacteria in its root nodules, fixing atmospheric nitrogen and enhancing soil fertility for subsequent crops. It does not increase pest incidence; in fact, its role in rotation can help break pest cycles. Green gram does not deplete phosphorus nor is it especially known for allelopathic effects.