Genetically modified crops hold the key to food security

In the debate over whether India should go for transgenic or genetically modified (GM) crops or not, there is a viewpoint that supports its ability to enhance production and increase food security, while against the motion there's a word of caution on the grounds that it will encourage monoculture and end diversity of traditional crops. Besides, biotech crops are still not perceived as fully safe for consumption, although nothing is proven scientifically.

The issue is significant as India's economic security depends heavily on agriculture, sustaining 58% of the population, as against 75% at the time of Independence. But since the onset of green revolution in the late 1960s, the country has made impressive strides in agriculture with better use of chemicals, high-yielding cereals and other plant varieties. The green revolution has boosted agricultural output substantially, increasing it 2.85 times to 235 million tones helping feed the country's population that has swollen from 440 million to 1.2 billion.

Saving millions from starvation, self-sufficiency is a driver for poverty reduction and economic transformation in rural areas. The mid-'90s marked a shift in which agricultural slowed down causing stagnation or even decline in farmers' income and agrarian distress turned serious with passing time. Agriculture is no more productive for small or marginal farmers, many of whom have committed suicide because of debt burden.

Studies show 40% farmers would switch over to another job. Sudhir Panwar, president of the Kisan Jagriti Manch, says "farmers are in agriculture by compulsion, not by choice. The impact is most visible in UP, which has seen net decline of 49 lakh agriculture workers in the last five years. The NSS report shows number of total agriculture workers went down from 4.03 crore in 2004-05 to 3.69 crore in 2009-10 and 3.54 crore in 2011-12," said Panwar.

Reason is not far to seek. In spite of the success of green revolution, contribution of agriculture and allied sector to the gross domestic product (GDP) has fallen from 61% to 19% in the last five decades. Presently, India sustains 16.8% of world's population on 4.2% of world's water resources and 2.3% of global land. Per capita availability of resources is four to six times less compared to the world average which will decrease further with increasing demographic pressure and consequent diversion of the land for non-agricultural uses.

While sparing virtually negligible land from agricultural use, around 51% of India's geographical area is already under cultivation compared to 11% of the world average. The present cropping intensity of 136% has registered increase of only 25% since Independence. Rain-fed dryland constitutes 65% of the total net sown area. There is also an unprecedented degradation of land (107 million hectare) and groundwater resource, and also fall in growth rate of total factor productivity.

Experts at the UN Food & Agricultural Organization (FAO) say by 2050 global population is expected to increase by 40% while associated global food production needs will expand by more than 70% with a rapidly growing middle-class in developing countries. India's population will grow to 1.3 billion by 2017, which means fresh demand for foodgrain in terms of quantity, quality and affordability, so current agricultural output needs to be doubled against odds like changing climatic conditions, declining ratio of arable land to population and water getting scarcer.

Agriculture intersects toughest challenges arising mainly from grim competition for supplies of fresh water, with its share dropping to 75% from the present 83% in the near future, in the wake of growing industrial and domestic sectors. Presently, excess exploitation of groundwater has caused sharp depletion of water table in central Punjab, Haryana, west Uttar Pradesh, Rajasthan, Tamil Nadu and West Bengal. In UP, over 260 out of total 800 blocks are already declared 'dark zones'. Yet, government has not taken water conservation measures for political reasons.

Overuse of canal water in south-west Punjab, Haryana and Rajasthan is leading to water logging and development of secondary salinity. Conjunctive use of water and diversification of rice-wheat is required. The problem is compounded by water wastage, around 18.4 million m3/day. Utilising waste water after treatment for irrigation is yet to be made part of water conservation policy. Micro-irrigation and resource conservation technologies (RCTs), economising on water and nutrients need to be promoted in a big way.

Poor soil fertility is another challenge. Around 25 million hectares of land in the country has low productivity of less than 1 tonne/hectare due to deficiencies and toxicities of nutrients. Adoption of cost-effective technology to improve this mass of land could add 25 million tonnes of food grains to the national food basket per annum. TOI