Manvalam
Soil fertility is the ability of a soil to sustain plant growth by providing essential plant nutrients and favourable chemical, physical, and biological conditions as a habitat. Plant nutrients include Macro and Micronutrients.
Major Soil groups of Tamilnadu:
Soil is one of the most important non-renewable basic resources on the earth’s surface. About 39.34 percent of Tamil Nadu is occupied by the Red soil, 37.89 percent by brown soils,16.38 percent by Black soils, 3.51 percent by Grey soils, 2.03 percent by Mixed soils and 0.86 percent by Alluvial soils.
Nitrogen
N
Phosphorus
P
Potassium
K
Organic Carbon
OC
Acidic/Alkalinity
pH
Electrical Conductivity
EC