* Soil Compaction: Tightly pressing the soil during ploughing can create a dense, hard layer called a "pan." This pan restricts root growth, reduces water infiltration, and hinders air circulation.
* Reduced Drainage: Water can't penetrate compacted soil easily, leading to waterlogging and potential root damage. This can also create anaerobic conditions that harm beneficial soil organisms.
* Nutrient Availability: Compacted soil can limit the movement of nutrients and water, making it harder for plants to access these essential elements.
* Erosion: Hard, compacted soil is more susceptible to erosion by wind and rain, leading to soil loss and decreased fertility.
* Soil Structure: Ploughing too deeply and tightly can disrupt the natural soil structure, harming earthworms and other beneficial organisms that contribute to healthy soil.
Instead of tight pressing, ploughing aims for:
* Loosening and aeration: The goal is to create a loose, well-aerated soil that promotes root growth, water infiltration, and nutrient availability.
* Proper depth: Ploughing depth should be adjusted based on soil type and crop requirements. Over-ploughing can be just as damaging as under-ploughing.
* Minimal disturbance: Modern practices often focus on minimal tillage techniques to preserve soil structure and its beneficial inhabitants.
In summary, light pressing during ploughing is essential for healthy soil and successful crop growth.
