WASHINGTON, D.C.Tracking the complex modernization of Latin American rice and bean
farming over the last three decades, a new study, compiled by the Colombia-based
International Center for Tropical Agriculture (CIAT), reports today that production of
rice has doubled between 1966 and 1995, and production of beans grew by 25 percent between
1983/85 and 1993/95. In some areas, bean yields have grown by as much as 110 percent. CIAT
is one of 16 agriculture centers sponsored by the Consultative Group for International
Agricultural Research. In addition to CIAT, sources of data for the report include the
United Nations Food and Agriculture Organization (FAO), and national agricultural research programs of almost every
country in Latin America and the Caribbean.
"Latin America has accelerated its rice and bean production over the past two
decades with extraordinary speed, allowing millions of the region's poorest consumers to
keep one of the world's most important pair of staple foods at the center of their
diet," said Aart van Schoonhoven, Director of Genetic Resources Research at CIAT and
an author of the study. "The growth in rice and bean production has also allowed
farmers in isolated areas to sell their products to urban centers in Latin America and
even as far away as Japan. Furthermore, improved bean varieties are offering farmers in
many destitute areas of the Andes of Bolivia, Colombia, and Peru with viable farming
alternatives."
Rice Production
Rice supplies Latin American consumers with more calories than wheat, maize, cassava,
and potatoes, and is consumed widely among Latin Americans, 70 percent of whom reside in
urban areas. Over the last 30 years, national agricultural research programs across the
region have released, on average, a total of 10 new lowland rice varieties each year,
according to the
CIAT report. In all some 300 varieties have been released. Nearly 40 percent of these
varieties have come from crosses made at CIAT; 11 percent from the International Rice
Research Institute (IRRI) in the
Philippines; and the rest from national programs in Latin America, Africa, and Asia. These
modern, "semidwarf" varieties of rice today account for virtually all of rice
production in Latin America.
CIAT economists have applied an "economic surplus model" to determine the
stream of benefits to consumers and farmers of this improved rice production from 1966 to
1995. They have found that the new varieties and accompanying improvements in crop
management increased the average rice yield in wetland areas from 3.3 tons per hectare in
the mid-1960s to 4.6 tons (5.0 tons for irrigated rice) in 1995. Mainly as a result of the
yield gains, total production doubled during that period to 20.6 million tons, making
Latin America almost self-sufficient in rice. Meanwhile, the area planted to rice rose
modestly, from 5.8 million hectares in the mid-1960s to 6.7 million in 1995.
"More efficient production of the crop on such a large scale has brought down its
price by about 50 percent in real terms over the last three decades," said Douglas
Pachico, PhD, Director of Impact Assessment at CIAT and
an author of the study. "As a consequence, consumers have enjoyed savings of US$518
million per year since 1966. Price savings have been especially helpful to the poor, since
they spend half of their total income on food, and rice accounts for 15 percent of their
total food purchases."
Bean Production
Latin America is the most important bean-producing region in the world; its 8 million
hectares account for nearly half of global bean output. In contrast with rice, the crop is
grown chiefly on small, non-irrigated farms in marginal environments, such as those
characterized by steep, erosion-prone slopes and by low soil fertility.
National agricultural research programs in Latin America have released about 180 new
varieties of beans, according to the report, based mainly on experimental lines developed
at CIAT. Information provided by the national programs suggests that the new seed is now
planted on at least 40 percent of Latin America's total bean-growing area. According to
figures from FAO, over the last decade or so, total bean production in Latin America has
risen 25 percentto 5.3 million tons in 1993-95 from 4.2 million tons in 1983-85. At
the same time, total area in production has risen by only two percentto 8.1 million
hectares from 7.9 millionand the annual rate of growth in area has actually declined
to -0.5 percent.
"Increased bean production has resulted mainly from higher yields," said
Pachico. "The annual growth rate in bean yields is now at about 2.7 percent compared
to 1.9 percent a decade ago."
The increases in production have been even more dramatic in some parts of Latin
American than in the region as a whole, according to the report. A 1996-97 study conducted
by CIAT in Peru's Cuzco area examined the adoption and impact of five new varieties that
had been developed in the late 1980s through farmer participatory schemes. According to
the study, the new varieties constituted 64 percent of the total bean farming area. The
study further determined
that the combination of improved varieties and higher plant densities boosted average
yields by 110 percent from 1985 to 1996. Other field studies from Bolivia, Colombia, and
Ecuador have registered similar production increases.
"Modern production of beans has boosted incomes in rural areas, contributing to
economic growth in Latin America across the board," said van Schoonhoven.
"Unlike some other traditional staples, the crop has fit rather easily into urban
life and eating habits. This rapid growth in urban demand for beans, combined with
improved bean production, has created new cash-earning opportunities for the small farmers
who grow beans."
"However, the production increases in rice and beans crops need to be multiplied
many times over if Latin America is to continue to provide sufficient food at reasonable
prices for its burgeoning urban population," continued van Schoonhoven. "These
gains are also important for reducing rural poverty. Expanding economic opportunities in
areas already under cultivation is critical for reducing human pressure on Latin America's
vast store of natural resources, especially its forests, biodiversity, and fresh
water."
Funding for CIAT rice research has been provided by the United States and Colombia.
Funding for bean research has been provided by the U.S., Switzerland, and Canada.
CIAT is a nonprofit, nongovernment research organization dedicated to alleviating
hunger and poverty and to protecting natural resources in the tropics. It is one of the
international centers of the Consultative Group on International Agricultural Research, an
association of nations and international agencies that funds research for development.
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