Explore key concepts in fertilizer application for cumin cultivation, from timing and types to nutrient balance and safety practices. Hone your understanding for optimal crop yields.
For optimal cumin growth, when is it recommended to apply the first dose of nitrogen fertilizer?
Explanation: Applying the first dose of nitrogen at sowing supports early root and shoot development, setting the stage for healthy plants. Applying at flowering is usually too late to influence early growth. After harvest provides no benefit to the current crop, and two weeks before sowing risks nutrient loss before plants can use it.
Which macronutrient is particularly important for increasing seed yield in cumin?
Explanation: Phosphorus plays a crucial role in energy transfer and contributes directly to seed formation and yield in cumin. Calcium is important for cell structure but not specifically for yield, sodium is not typically considered essential for cumin, and chlorine is needed in very small amounts.
What is a recommended practice when applying farmyard manure to a cumin field?
Explanation: Mixing farmyard manure into the soil before sowing ensures nutrients are available during critical growth stages. Applying on leaves may harm the crop, leaving it on the surface can lead to losses, and applying after heavy rain risks nutrient runoff.
A commonly recommended N:P:K ratio for cumin fertilization is 30:20:10. What do these numbers indicate?
Explanation: The ratio 30:20:10 refers to the parts (usually kilograms per hectare) of nitrogen, phosphorus, and potassium to apply. The other options are unrelated to fertilizer rates or application methods.
What safety precaution should be taken during fertilizer application in cumin cultivation?
Explanation: Wearing gloves and avoiding dust inhalation minimizes health risks from contact or inhalation of chemicals. Mixing fertilizers with pesticides is potentially unsafe, midday application increases volatilization and loss, and doubling doses can harm crops and the environment.