Superiority manage practices vary
with the size and location of each farm. Large commercial rice farms in the
United States more often than not apply the most effective combination of herbicides;
fertilization, crop turning round, and newest farming tackle to optimize their
yields. Smaller, less mechanized operations are more likely to be influenced by
traditional cultural methods of farming rather than high technology. Certainly,
there are benefits to both approaches and a union of the two is ideal. Rotating
crops during consecutive years is a traditional practice that encourages large
yield as is the planting of hardier seed varieties developed with the help of
modern hybridization practices. Straw from the harvested rice plants is used as
bedding for livestock. Oil extracted from discarded rice bran is used in
livestock feed. Hulls are used to produce mulch that will eventually be used to
recondition the farm soil. The essential use of irrigation, flooding, and
draining techniques in rice farming also produces runoff of pesticides,
herbicides, and fertilizers into natural water systems. The extensive use of
water in rice farming also increases its level of methane emissions. Rice
farming is responsible for 14% of total global methane emissions. With one out
of every three people on earth needy on rice as a staple food in their diet and
with 80-100 million new people to be fed annually, the importance of rice
production to the worldwide human population is crucial. Scientists and farmers
face the daunting task of increasing yield while minimize rice farming's
negative environmental effects. Organizations such as the International Rice
Research Institute (IRRI) and the (WARDA), and Centro International de Agriculture
Tropical (CIAT [International Center for Tropical Agriculture]) are conducting
research that will eventually lead to more productive varieties of rice and
rice hybrids, use of less water during the growing season, decrease in the use
of fresh organic fertilizer that contributes to greenhouse effect, and crops
more resistant to disease and pests.
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