Agriculture in Brazil: Current Situation and Future Prospects
Dr. Clayton Campanhola
Director, National Center of Research in Defense of Agriculture, Ministry
of Agriculture, Brasilia, DF, Brail
Distinguished
Faculty Members of Luiz de Queiroz College
Honorable
Secretaries of the State of Sao Paulo
Most Welcome
Conference Participants
Ladies and
Gentlemen,
It is my
privilege and honor to represent Dr. Antonio Cabrera Mano Filho, Minister of
Agriculture of Brazil, who deeply regrets that he could not be with you today
because of unforseen and unavoidable circumstances. However, on his behalf, I
would like to welcome all of you to this very important Second International
Conference on Kyusei Nature Farming.
The rapid growth
in world population over the past several decades, particularly in developing
countries, has led to a concomitant rapid adoption of mechanical and chemical
technologies to provide sufficient food and fiber for expanding populations.
Unfortunately, the intensive use of these new technologies (e.g., chemical
fertilizers and pesticides, large-scale mechanization, and monoculture
production of food crops) have often resulted in serious degradation of our
agricultural soils through wind and water erosion, and extensive pollution of
our environment from sediment and residual agrichemicals.
Adverse effects
from excessive use and misuse of agrichemicals have occurred in both developed
and developing countries, and Brazil is no exception. In our efforts to achieve
the promise of vastly increased crop yields attributed to the Green Revolution,
Brazil increased its use of pesticides dramatically. During the 1970fs our
consumption of insecticides increased by 340%; fungicides by 770%; and
herbicides by over 3,000%. Because of the economic crisis that began here in
the 1980fs, there has been a systematic reduction in the use of chemical
fertilizers and pesticides in Brazilian agriculture, although by some estimates
the level of consumption still seems to be rather high. I might also add that
there is a wide discrepancy about the return on investments that one could
expect from the use of agrichemicals. The chemical industry often insists that
the return on investment ratio is as high as 20: 1, while research in the
United States indicates a ratio of no higher than 3:1. Such estimates do not
account for the social and environmental costs of using these agrichemicals. If
they did, the return on investment ratio would undoubtedly be lower.
Soil degradative
processes such as soil erosion, nutrient and organic matter depletion,
waterlogging from impaired drainage, salinization, acidification and
desertification all contribute to the decline in soil productivity and
environmental pollution. These are often major constraints to the establishment
of a long-term sustainable agriculture not only in Brazil, but worldwide. Thus,
it is apparent that we must seek new strategies and approaches to help us
develop farming systems that produce adequate, healthy, and nutritious food for
our expanding populations; that conserve the soil and water resource base; that
are economically-viable; that protect and preserve the environment; and that
allow man to co-exist harmoniously with nature.
To achieve these
goals it will be necessary to integrate agronomic, ecological, socioeconomic,
and indigenous knowledge into our technical databases to ensure the highest
probability of developing truly sustainable farming systems. The principles of
nature farming would appear to offer some new and unique opportunities in
helping us meet our goals. This, I believe is the major challenge that we face
today and in the few short years remaining in this century.
Again,
on behalf of our Minister of Agriculture, Dr. Antonio Cabrera Mano Filho, I
would like to wish you a most successful conference. I know that he looks
forward to receiving your recommendations and suggestions that will help us to
develop and implement meaningful programs on research, education, and
technology transfer in the future.
Thank
you very much for your participation at this important conference.