Methods of replenishing plant nutrients in the soil - SS2 Agriculture Past Questions and Answers - page 2
How do cover crops contribute to soil fertility?
By depleting soil nutrients
By suppressing soil microorganisms
By preventing erosion and adding organic matter
By increasing soil compaction
What does fallowing refer to in agriculture?
Continuous cultivation of the same crop
Leaving the land uncultivated to recover and replenish nutrients
Planting multiple crops simultaneously
Using only synthetic fertilizers
What is the primary advantage of using organic manure in farming?
Rapid release of nutrients
Improved soil structure and microbial activity
Long-lasting effects on soil fertility
Lower cost compared to synthetic fertilizers
Which nutrient is commonly associated with synthetic fertilizers?
Carbon
Nitrogen
Oxygen
Hydrogen
Why is it important to use a combination of nutrient replenishment methods in farming?
To increase soil erosion
To meet the diverse nutrient needs of different crops
To eliminate the need for crop rotation
Explain the concept of crop rotation and how it helps maintain soil fertility.
Crop rotation is a farming practice where different crops are planted in a specific sequence on the same land over time. It helps maintain soil fertility by preventing the depletion of specific nutrients and disrupting the life cycles of pests and diseases.
What are the key benefits of using organic manure in agriculture, and how does it differ from synthetic fertilizers?
Organic manure is beneficial in agriculture because it improves soil structure, adds organic matter, and enhances microbial activity. It differs from synthetic fertilizers because it releases nutrients gradually and supports long-term soil health.
Describe the process of liming and its impact on soil pH and nutrient availability.
Liming involves adding lime, usually calcium carbonate, to soil. It raises soil pH, making acidic soils more suitable for plant growth. It also improves nutrient availability by reducing soil acidity.
How does fallowing contribute to soil nutrient replenishment, and when is it typically practiced in farming?
Fallowing is the practice of leaving land uncultivated for a season or more. It contributes to soil nutrient replenishment by allowing the soil to naturally recover and replenish nutrients. It's typically done when soil health needs restoration.
Discuss the environmental and agricultural benefits of cover cropping in sustainable farming practices.
Cover cropping benefits agriculture and the environment by protecting the soil from erosion, suppressing weeds, and adding organic matter. It also enriches the soil by fixing nitrogen and supporting biodiversity, making it a sustainable farming practice.