Nutrient Management: A Key to Soil Health and Long-term Sustainability

摘要

I am greatly privileged and feel honoured to be invited by the Varanasi Chapter of Indian Society of Soil Science to deliver 12th Dr. N. S. Randhawa Memorial Lecture. Dr. Randhawa made outstanding contributions for the progress of agriculture of thiscountry. In memory of this great soil scientist, I present my lecture on "Nutrient Management: A Key to Soil Health and Long Term Sustainability". The everincreasing population of the country is forcing the planners to produce more and more with ever shrinking natural resources. High yielding verities and intensification of agriculture played an important role in bringing the era of Green Revolution in the country. The external supply of nutrients and water helped in sustaining the Green Revolution forsome time. However, continuous use of the high analysis fertilizers accelerated the mining of micro- and secondary nutrients which brought down the productivity cropping systems at several places in the country.