Smart Nutrition for Cumin Quiz Quiz

Explore key facts about nano urea use in cumin agriculture, from efficiency benefits to safety considerations, with practical field scenarios.

1. What is nano urea and why is it used in cumin cultivation?

   Nano urea is a fertilizer solution developed for crops like cumin. What makes nano urea distinct when used in cumin fields?

   1. It colors the cumin leaves to deter birds from feeding.
   2. It is made from animal manure and primarily adds potassium.
   3. It is a slow-release pesticide for protecting cumin from pests.
   4. It delivers nitrogen in nanoscale particles, allowing better absorption by cumin plants.

   Explanation: Nano urea delivers nitrogen as extremely small particles, making it more easily absorbed by cumin foliage and increasing fertilizer efficiency. It is not made from manure nor does it supply potassium, so option two is incorrect. Nano urea is not a pesticide, making option three wrong. The product does not color the leaves to deter birds, so option four is inaccurate.

2. What is a recommended application method for nano urea in cumin farming?

   Which is an advised way to apply nano urea to cumin crops during standard agricultural practice?

   1. Apply nano urea granules to the soil before sowing cumin.
   2. Foliar spray at the vegetative stage of cumin growth.
   3. Directly mix with harvested cumin seeds before storage.
   4. Mix nano urea with irrigation water used for cumin fields.

   Explanation: Nano urea is best applied as a foliar spray, particularly at the vegetative stage, for maximum uptake through cumin leaves. Mixing nano urea with irrigation or with seeds is not a standard or effective method. Nano urea is not sold as granules and is not designed for soil application before sowing, making options two, three, and four incorrect.

3. Which benefit can cumin farmers expect from proper nano urea use?

   What is one main advantage for cumin growers who switch from conventional urea to nano urea as recommended?

   1. Permanent change in soil structure after one season.
   2. Cumin plants grow with blue-colored stems.
   3. Reduced nitrogen loss due to better plant uptake efficiency.
   4. Significantly increased need for phosphate fertilizers.

   Explanation: Nano urea reduces nitrogen loss because its small particles are better absorbed by cumin leaves, enhancing efficiency. Blue stems do not occur, so option two is wrong. Nano urea does not increase phosphate needs, and it doesn't alter soil structure in one season, thus options three and four are incorrect.

4. How should safety be ensured when handling nano urea sprays in cumin fields?

   What safety step should farmers follow while using nano urea sprays on cumin crops?

   1. Drink diluted nano urea to boost health.
   2. Store nano urea in uncovered buckets by the well.
   3. Remove all bees from fields before spraying.
   4. Wear protective gloves and avoid inhaling the spray mist.

   Explanation: Wearing gloves and avoiding spray inhalation is a standard safety practice to prevent potential irritation from foliar products like nano urea. Drinking nano urea is unsafe and not for human consumption. Removing bees is unnecessary, and storing in uncovered buckets poses contamination risks; both options three and four are not advised.

5. Which scenario shows a likely misapplication of nano urea in cumin farming?

   A farmer wants to use nano urea for cumin and does the following. Which action is NOT recommended?

   1. Spraying nano urea during peak sunlight and high wind conditions.
   2. Applying nano urea foliar spray in the evening or morning when it's cooler.
   3. Following label instructions for dosage and spray interval.
   4. Mixing the recommended dose of nano urea in clean water for spraying.

   Explanation: Spraying during hot, windy periods can reduce absorption and cause product loss through evaporation or drift. Applying in cooler times and following label instructions ensures effectiveness and safety, so options two, three, and four depict correct practice.