Disadvantages of Mechanization - SS1 Agriculture Lesson Note

Destruction of Soil Structure:

Mechanization in agriculture often involves heavy machinery like tractors and harvesters. These machines can lead to soil compaction, especially when used on wet or poorly managed fields. Soil compaction destroys the soil structure, making it less conducive to plant growth. It reduces aeration, water infiltration, and root penetration, which can harm crop yields and long-term soil health.

 

Environmental Pollution:

Mechanization can contribute to environmental pollution in various ways. Diesel-powered machinery releases pollutants into the air, including carbon dioxide (CO2) and particulate matter, which contribute to global warming and respiratory issues. Chemical fertilizers and pesticides, often used alongside mechanization, can also lead to soil and water pollution, harming ecosystems and human health.

 

Compaction of Soil:

The weight and movement of heavy machinery can compact the soil, especially in wet conditions. This compaction reduces the pore space in the soil, restricting the movement of air, water, and nutrients. Compacted soil is less productive, as it hinders root growth and the ability of plants to access essential resources.