This is a work in progress, so do check back later for new additions.
If you come across a useful online resource related to agriculture please let us know and we will add it here for ready reference.
Fish diseases Common fresh water fish diseases
Organic doctor recipes homemade recipes
Diseases Tamil Nadu Agri. University
Natural sources of plant nutrients PDF
Nutrient deficiencies & symptoms. Towards a Healthy Plant PDF
Nutrients deficiency Terminology for diagnosis PDF
Plant physiology and development 6th edition, companion website