What is the primary aim of stubble retention?

What is the primary aim of stubble retention?

• A. To reduce soil temperature
• B. To prevent soil erosion
• C. To preserve organic matter
• D. To enhance soil drainage

Answer: (C)

The primary aim of stubble retention is to preserve organic matter within the soil ecosystem. By leaving stubble on the surface after harvest, organic material is not removed but instead returns to the soil as it decomposes. This practice enriches the soil with organic matter, which is crucial for maintaining soil health. Organic matter improves soil structure, enhances nutrient and water retention, and fosters a habitat for beneficial soil organisms. These benefits collectively contribute to improved soil fertility and productivity over time. In addition, while stubble retention can help reduce soil erosion and may have some effects on soil temperature and drainage, its principal advantage lies in the preservation of organic matter, which supports long-term soil sustainability and agricultural productivity.

The primary aim of stubble retention is to preserve organic matter within the soil ecosystem. By leaving stubble on the surface after harvest, organic material is not removed but instead returns to the soil as it decomposes. This practice enriches the soil with organic matter, which is crucial for maintaining soil health. Organic matter improves soil structure, enhances nutrient and water retention, and fosters a habitat for beneficial soil organisms. These benefits collectively contribute to improved soil fertility and productivity over time.

In addition, while stubble retention can help reduce soil erosion and may have some effects on soil temperature and drainage, its principal advantage lies in the preservation of organic matter, which supports long-term soil sustainability and agricultural productivity.