Explore critical principles of nutrient management for healthy coconut cultivation, focusing on soil, fertilization, and deficiency management. Ideal for students and growers seeking concise insights into best practices for coconut nutrition.
Which type of soil is generally considered most suitable for optimal coconut palm growth and nutrient uptake?
Explanation: Well-drained sandy loam is ideal because it ensures proper root aeration and consistent moisture without waterlogging, supporting nutrient absorption. Heavy clay retains excess water and can impede roots; rocky gravel lacks the necessary nutrients and water-holding capacity; acidic peat is usually too acidic for optimal coconut growth.
In coconut farming, which of the following macronutrients is most commonly associated with increasing nut yield and healthy leaf development?
Explanation: Potassium is essential for coconut palms, directly affecting yield and healthy leaf growth. Calcium helps cell walls but is less critical for yield. Iron and zinc are micronutrients needed in much smaller amounts and mainly prevent specific deficiencies rather than boosting nut production.
What is the preferred method of applying fertilizers to mature coconut trees for optimal nutrient absorption?
Explanation: Broadcasting fertilizers evenly around the root zone ensures maximum uptake by feeder roots. Foliar sprays are less effective for major nutrients in coconuts. Burying in one pit localizes nutrients and may not distribute them efficiently. Sprinkling on the trunk does not reach the root system.
A coconut palm displays yellowing leaves with older fronds affected first and slow nut development. Which nutrient deficiency is most likely?
Explanation: Nitrogen deficiency in coconuts causes general yellowing (chlorosis) of older leaves and reduced growth/nut size. Magnesium deficiency produces striping rather than general yellowing; boron deficiency leads to malformed nuts and small leaves; sulfur deficiency usually affects young leaves first.
Why is adding organic matter such as compost or green manure recommended in coconut plantations?
Explanation: Organic matter improves soil structure, aeration, moisture retention, and nutrient availability for coconut palms. It does not increase pest activity or leaf fall, and it actually enhances—not decreases—the soil's water retention.