The major nutrient deficiencies in Manipur soils include:

Nitrogen
Phosphorus
Potassium
All of the above

The major nutrient deficiencies in Manipur soils include nitrogen, phosphorus, and potassium. These nutrients are essential for plant growth and development, and their deficiency can lead to a number of problems, including stunted growth, poor yields, and increased susceptibility to pests and diseases.

Nitrogen is a key component of proteins and nucleic acids, which are essential for all living things. It is also involved in the production of chlorophyll, which is necessary for photosynthesis. Nitrogen deficiency can lead to a number of symptoms, including pale green leaves, stunted growth, and reduced yields.

Phosphorus is a mineral that is essential for energy production, cell division, and the formation of bones and teeth. It is also involved in the production of ATP, which is the energy currency of the cell. Phosphorus deficiency can lead to a number of symptoms, including stunted growth, poor yields, and increased susceptibility to pests and diseases.

Potassium is a mineral that is essential for water regulation, photosynthesis, and the production of proteins and carbohydrates. It is also involved in the transmission of nerve impulses and the contraction of muscles. Potassium deficiency can lead to a number of symptoms, including wilting, yellowing leaves, and reduced yields.

In order to correct nutrient deficiencies in Manipur soils, it is important to test the soil and determine which nutrients are lacking. Once the deficiencies have been identified, appropriate fertilizers can be applied to correct the problem. It is also important to practice good agricultural practices, such as crop rotation and cover cropping, to help maintain soil fertility.