Explore essential aspects of coriander fertilization with easy questions covering nutrients, timing, and common practices. Ideal for beginners aiming to improve coriander yields responsibly.
Which primary nutrient is most crucial for coriander leaf development during early vegetative growth?
Explanation: Nitrogen promotes vigorous leaf growth, which is key for coriander as a leafy herb. Magnesium and zinc are important micronutrients but not the main drivers for early leaf development. Calcium is also vital for cell wall structure, but nitrogen is the most essential macronutrient at this stage.
When should the first dose of fertilizer typically be applied to coriander crops after sowing?
Explanation: Fertilizer applied at sowing gives young coriander plants access to nutrients when they need them most. Waiting until 3–4 weeks or after flowering may limit early growth and yield, while application just before harvest is generally ineffective.
If coriander plants show excessive leaf growth but poor seed development, which fertilization issue is most likely responsible?
Explanation: Too much nitrogen encourages leafy growth at the expense of seed production. Lack of potassium or phosphorus deficiency usually results in poor overall plant health, not just low seed set. Overwatering affects plant health but does not specifically cause lush leaves with few seeds.
Which micronutrient deficiency often leads to chlorosis (yellowing) between veins in coriander leaves?
Explanation: Iron deficiency typically causes interveinal chlorosis, especially in young leaves. Boron, copper, and sulfur deficiencies also affect plant health but cause different symptoms, such as leaf distortion or uniform yellowing.
A farmer wants to improve soil structure while fertilizing coriander. Which type of fertilizer can best achieve this goal?
Explanation: Well-rotted farmyard manure adds organic matter, improving soil structure and fertility. Urea, superphosphate, and potassium chloride are chemical fertilizers that provide nutrients but do not enhance soil texture or organic content.