Explore essential knowledge about cumin fertilization practices, nutrient management, and factors that influence healthy cumin yields in agriculture.
Which is the recommended stage for applying the majority of nitrogen fertilizer to cumin crops for optimal growth?
Explanation: Applying the majority of nitrogen at sowing supports strong early growth in cumin. While some split application can be done, flowering and seedling stages are less effective for major nitrogen input, and applying fertilizer at harvest provides no benefit to the growing plant.
Which micronutrient deficiency is most commonly associated with reduced seed setting in cumin cultivation?
Explanation: Boron plays a crucial role in seed setting for cumin crops. While phosphorus and potassium are essential macronutrients, they are not typically limiting for seed setting. Sulphur is also vital but less commonly linked to this specific problem.
Cumin generally exhibits optimal nutrient uptake and growth in soils with which pH range?
Explanation: A soil pH of 6.5–7.5 ensures cumin can best access nutrients. More acidic (4.0–5.0, 5.0–6.0) or highly alkaline (8.0–9.0) soils reduce nutrient availability and can hinder crop health.
In cumin farming, incorporating well-rotted farmyard manure before sowing primarily helps to:
Explanation: Organic manures mainly enhance soil structure, moisture retention, and microbial activity. They release nutrients slowly but are not a rapid potassium source, do not significantly acidify soil, and are not a direct method for nematode control.
What is a likely result of excessive nitrogen application in cumin production?
Explanation: Too much nitrogen causes lush, weak growth, increasing the risk of lodging. It does not raise oil content, confer disease resistance, or encourage earlier flowering; in fact, it can delay reproductive stages.