Importance of Clay Soil for Agriculture

What is Clay Soil?

Clay soil is composed of very fine mineral particles and retains water extremely well. It is nutrient-rich but has poor drainage and can become compacted, making it harder for plant roots to grow. However, with proper management, clay soil can be one of the most productive soil types for farming.

Importance of Clay Soil

Minimum Nutrient Levels and pH of Clay Soil

Clay soils typically have the following characteristics:

Common Crops Grown in Clay Soil

Indian Crops

Crop NPK Requirements (kg/ha) pH Range
Rice N: 100, P: 50, K: 50 6.0 - 7.5
Soybean N: 20, P: 60, K: 40 6.0 - 7.5
Wheat N: 120, P: 60, K: 40 6.0 - 7.5
Cotton N: 80, P: 40, K: 40 6.0 - 7.5

Foreign Crops

Crop NPK Requirements (kg/ha) pH Range
Maize N: 120, P: 60, K: 60 5.5 - 7.5
Sunflower N: 120, P: 60, K: 60 6.0 - 7.5
Barley N: 80, P: 40, K: 40 6.0 - 7.5
Alfalfa N: 50, P: 50, K: 50 6.5 - 7.5