India is predominantly agrarian — 80 per cent of the population is directly or indirectly dependent on agriculture. Rice and wheat are the staple for 90 per cent of the country’s people. Till the early 1960’s, the predominant mode of cultivation was what is now called “organic farming”, with no synthetic fertilisers or pesticides available or known. At that time, farmers relied on cow dung, twigs of leguminous plants like Crotalaria juncea, Tephrosia, neem and jeelugu. These materials mulched the fields ploughed for rice plantation. Oil cakes of groundnut, castor, neem were also used which is a good source of nitrogen. Since the use of urea from the beginning of the 1960s, nitrogen, phosphorus and potassium-based fertilisers became available after the establishment of industrial plants at Sindri (Bihar) Udyog Mandal (Kerala). Fortunately, in this decade, synthetic pesticides like dichlorodiphenyltrichloroethane (DDT), endrin, and others entered the market. Another spectacular discovery was that of the high-yielding hybrid wheat and rice. The high-yielding wheat was discovered by Norman Borlaug (Nobel Prize winner) and was rapidly adopted by India largely due to the pioneering work of Dr Swaminathan and MV Rao. Swaminathan is remembered as the ‘father of Green Revolution’ and Rao as the “wheat man of India”. With hybrid varieties and synthetic fertilisers and insecticides, the production of rice per acre increased to 40 quintals from 10 quintals, a tremendous victory in fighting hunger. There were also some setbacks during the 1960s and 70s. India’s budget (read agriculture) is dependent on the monsoon season, as George Curzon pointed out in 1905. Due to drought from 1964-70, India had to import food and became heavily dependent on the United States for wheat supplies under the Public Law 480 agreement. At one time, we were eagerly waiting for the arrival of a ship full of wheat at the Mumbai port. The late former Prime Minister Lal Bahadur Shastri gave a call to “miss a meal” on Monday nights as a part of the Jai Kisan movement.

Green Revolution

Ultimately, the Green Revolution was initiated. The theme of the initiative was to boost food grains production of rice and wheat using any method and at any cost. Success followed many setbacks. Biologist-turned-science-writer Rachel Carson published a seminal book called Silent Spring, focused on the harmful effects of pesticides, primarily DDT on our health and environment. DDT was found to be non-biodegradable and its remnants were traced everywhere — in our body, soil and water. Studies showed its effects on liver and kidneys, including causing cancers. Scientists rapidly found alternatives and advocated Integrated Pest Management (IPM). IPM is a need-based use of pesticides, alternating crops, intercropping as well as usage of bird perches where birds rest, detect insects on crops and eat them. After DDT, other insecticides like monocrotophos, metasystox, cypermethrin came into use but these are equally harmful to humans, livestock and fish. The “turn to nature” to get pesticide-free food has become a priority. The order of the day is organic farming — natural farming or zero-budget agriculture — which is welcome and most wanted in the agriculture sphere.