Category: Science Publisher: Research Foundation for Science Technology & Ecology, New Delhi
Pages: 80
Copyright: 2004
This book deals in detail how the Green Revolution has decimated indigenous wealth of crop geentic diversity, poisoned the air and water, eroded soil fertility, and depauperated poor farmers. The author describes numerous techniques of ecologcial agriculture as the better way to ensure biodiversity conservation and food security. He also gives adequate scientific explanation of why zero-chemical, biodiverse farming can protect the environment and human health.
Excerpt:
The Outcome of the Green Revolution
The roles of (a) cropland area expansion, (b) extension of irrigation, and (c) cereal crop intensification have been decisive in the spectacular growth of cereal production by agricultural modernization. However, the roles of crop intensification and irrigation overlap with another significant factor, namely, (d) replacement of other crops with cereals. In Punjab, while the net crop area under rice increased ten-fold, and that under wheat increased three-fold between 1960-61 and 1999-2000, the area under pulses in the same period decreased ten-fold – from 903,000 ha to 69,000 ha. The area under maize went down from 327,000 ha in 1966-67 to 185,000 ha in 1999-2000; the crop area under oilseeds and millets also decreased (Shiva 2001: 46). Thus, the performance of the ‘miracle seeds’ of the Green revolution appears not-so spectacular. In fact, no HYVs have yet been developed that could withstand inundation, drought or salinity – the three principal limiting factors of crop production in marginal lands. Considering the fact that about 30% of India’s crop production is contributed by dry land farms where HYVs cannot fare well, the role of folk crop varieties in the country’s food security becomes obvious. The failure of HYVs in marginal environments has been more than offset by the overall increase in crop production due to the concerted effects of the four causal factors discussed above.
There has been a steady decline in both production and productivity of ‘minor’ cereals or coarse grains (millets and maize) and pulses. There has seldom been any governmental impetus for growing these minor crops, especially those locally adapted and traditionally grown. Fewer and fewer farmers are growing them on less and less farm area, because the Green Revolution boy scouts and agents have persuaded them, under the ‘Grow More Food’, ‘Food For All’ and related campaign heads, to grow more and more élite cereals at the negligence of all other subsistence crops. Nevertheless, after the initial ‘miracle’ of spectacularly high production, the yield curves for both rice and wheat show decline in subsequent decades. The yield data of the recent few years are particularly revealing (Fig. 4). Incremental rates of growth in production of all crops reveal an overall downward trend; the rates for coarse grains and pulses never registered any rise in the past, and have now dipped negative (Fig. 5).
The contribution of growth in food production to development, however, has remained illusory because the Green Revolution constituted a model of dissipative underdevelopment, where production enhancement did not entail improved entitlement and freedom of the poor. A close inspection of the fate of the calculated “surplus” over the past decades reveals that growth has engendered inequity and pauperisation of peasants. The system of food grain collection served to enrich the mediating traders who, despite the government-regulated price ceilings, controlled the market supply of the food grains, while the real economic benefit of food production remained inaccessible to the poor. Thus, "the surpluses of rice and wheat that seemed to appear after the record harvests in 1986 and 1989 were illusory, although the government had insufficient space in its famine-reserve warehouses to store all the grain the farmers wanted to sell. As Professor L.S. Venkataraman of the Institute of Social and Economic Change in Bangalore told me, the excess only arose because the people who needed it could not afford to buy" (Douthwaite 1999: 250).
... An important aspect of agro-biodiversity is the crop genetic diversity, which is threatened by industrialization of agriculture. Folk crop varieties continue to disappear with the on-going transformation of indigenous cultures and their ecosystems (Feenstra et al. 1997; Fujisaka 1999). The modern practice of monoculture of selected crops has replaced the traditional multiple cropping practices, resulting in erosion of crop diversity (Deb 2000b). Agricultural modernization has also eroded the genetic base of most cultivated crops – rice, wheat, maize, potato – through replacement with a handful of modern varieties (Fujisaka 1999). Erosion of crop genetic diversity has taken an awesome proportion in the case of the indica variety of rice. From an estimated 46,000 folk rice landraces cultivated in India till the late 1960’s, no more than a few thousands are left. In West Bengal, a predominantly rice-growing State, over 5600 were grown till the 1970, of which about 3500 landraces were sent to IRRI in the Philippines during the period from 1975 to 1983 (Deb 2000a). Today, most of these varieties have gone extinct; at most 400 folk landraces are now surviving on marginal farms of the State. An additional threat to folk crop genetic diversity from the recent introduction of GM crops will be discussed in a later section.
... Another major problem created by crop intensification is the depletion of groundwater. In addition to depletion, contamination of ground water with toxic chemicals is a great problem that has enormous economic costs in terms of long-term environmental and human health effects. Pesticide residues contaminating groundwater is a widespread phenomenon in the North and South alike. Additionally, intensive Green Revolutionary cultivation of more than two crops a year has shifted agriculture from its traditional dependence on rainwater to an increasing dependence on irrigation, with a direct consequence that groundwater is pumped up in excess of the rate of recharging. Continuous withdrawal of groundwater interferes with complex geochemical processes to release arsenic from sedimentary pyrites and iron oxy-hydroxides into aquifers, leading to increasingly high levels of arsenic poisoning of groundwater in southern Bengal Basin (Chakraborti et al. 2001; Harvey et al. 2002). Over 42.7 million people in an area of 38,865 km2 in West Bengal and 93.5 million in 112,407 km2 area in Bangladesh are exposed to severe health risks including like skin cancer from high levels of arsenic in drinking water drawn from hand tube wells (Mazumder et al. 2000; Chakraborti et al. 2001; also see West Bengal & Bangladesh Arsenic Crisis Information Centre web site ). Today using filtered water from ponds and pools is the only cheap and safe option for people in the affected region.
Where Do We Go from Here?
The modernist faith in technological fixes derives from the mechanistic worldview, which assumes that the world is a machine, with precisely linear relationships between its parts. This worldview is characterised by the application of the reductionist method of classical physics to complex biological and social phenomena. It commits the fundamental methodological and epistemological error of assuming that ecosystem properties could be predicted from structures and functions of proteins and nucleic acids, and that functions of these molecules can be explained in terms of fundamental particles of matter. Thus, modern agriculture ignores the realities of physiological adaptations of organisms to environmental stress, developmental constraints to growth, and ecological interactions among species, and tends to linearize the relationship between the environment and plant physiology in terms of inorganic chemical ‘inputs’ and grain ‘outputs’. The limitation of this linear thinking has become evident in the failure of the Green Revolution to stabilise crop yield and to eradicate hunger, which has now become endemic in different countries. The failure of the reductionist approach to biology is once again becoming evident in the fading brouhaha over the genetic engineering dreams of creating miraculous crops. Of course genetic engineering has created astounding transgenic creatures like a tobacco plant that glows in the dark like the firefly, but the point at issue is ecological and physiological stability of such creations. So far, no transgenic creatures have yet been stable without constant external support, any more than HYV crops have shown any yield stability without incremental chemical inputs.
The disastrous consequences of the fake Green Revolution, however, show the need of the true Green Revolution, which is yet to take place. The real Green Revolution will not be a revolt against nature, but against the industrial developmentality that seeks to violate the inviolable natural laws of production. The real Green Revolution will rediscover the forgotten links of human economy to nature’s economy, and harmonize human production systems with global ecological principles.
To militate against the fake Green Revolution, and to reclaim the term from its industrial abuse, crop production principles need to become attuned to ecological principles. Drawing on the past experiences of indigenous societies, scientific agriculture must nurture biodiversity, not simplify it. The traditional custom of nurturing biodiversity has led to the astounding genetic diversity of crops: ancient farmer breeders have bequeathed us the hundreds of domesticated food crops and thousands of landraces of rice, maize and potatoes. Centuries of farmer experiments with biodiversity management have resulted in a repertoire of traditional ecological knowledge that has just begun to be explored. This repertoire seems to have prudent answers to all problems related to crop pests and their parasites, predators and pathogens. Ecological agriculture draws on this knowledge base, takes advantage of the complex ecological relationships between species, and fosters heuristic learning from on-farm experiments for finding answers, rather than relying on extraneous expertise and big technological solutions to ecological problems that industrial science cannot understand.
"What went on in the name of Green Revolution was essentially a large-scale industrial plunder of the earth. Based on the reductionist assumption that plant growth and productivity are a function of chemistry, agriculture was rendered an object of chemical engineering, and of late, genetic engineering. In this mechanistic vision of agricultural development, the millennia of evolution and the vast complexity of ecological relationships among species – at genetic, populational and community levels – were considered as inconsequential.
The industrial growth motive of agricultural development has created a corporate-driven food production system, turned agriculture into an extractive industry and food into a major health hazard. It has proved detrimental for the entire ecosystem and food security, for which agricultural development was envisaged in the first place. The Green Revolution, as well as its genetic engineering sequel, has made the world less green, less diverse, less productive, more toxic for the earth’s denizens, more hostile for humans to live in, and more insecure for the poor’s livelihood."
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