Explore fundamental facts about the use of nano urea in maize farming, including benefits, application methods, and safe handling. Ideal for beginners seeking practical insights into innovative fertilizer solutions.
What is the main advantage of using nano urea over conventional urea in maize cultivation?
Explanation: Nano urea increases nitrogen use efficiency, meaning plants absorb more nitrogen with less fertilizer. Lower seed cost is unrelated to fertilizer. While nitrogen supports plant growth, it does not directly cause faster seed germination. Nano urea does not replace the need for irrigation.
Which method is typically recommended for applying nano urea in maize fields?
Explanation: Nano urea is most commonly applied as a foliar spray, allowing direct absorption through leaves. Soil drenching and root dipping are standard for other agrochemicals but not for nano urea. Seed coating is also not typical for this fertilizer.
At which maize growth stage is nano urea often recommended for optimal effect?
Explanation: The knee-high stage is ideal for nano urea foliar spray, as the plant has enough leaf area for absorption. Immediately after sowing, plants have minimal foliage. Application during flowering is less effective, and using fertilizer after harvest offers no benefit.
How does nano urea use potentially reduce environmental pollution in maize farming?
Explanation: Nano urea supplies nitrogen efficiently, decreasing excess runoff into water systems. It does not increase soil acidity, does not promote weeds, and requires less frequent spraying than other fertilizers, not more.
Which safety measure is important when preparing nano urea foliar spray for maize?
Explanation: Gloves and avoiding inhalation reduce exposure to fine particles. Applying under strong sunlight can cause rapid evaporation, reducing effectiveness. Mixing directly with pesticides is not always compatible, and overdosing can harm crops and the environment.