Saturday, October 8, 2011

Rice production in Bangladesh


Rice production in Bangladesh is a crucial part of the national economy
The dominant food crop of Bangladesh is rice, accounting for about 75 percent of agricultural land use (and 28 percent of GDP). Rice production increased every year in the 1980s (through 1987) except FY 1981, but the annual increases have generally been modest, barely keeping pace with the population. Rice production exceeded 15 million tons for the first time in FY 1986. In the mid-1980s, Bangladesh was the fourth largest rice producer in the world, but its productivity was low compared with other Asian countries, such as Malaysia and Indonesia. It is currently the world's sixth-largest producer. Highyield varieties of seed, application of fertilizer, and irrigation have increased yields, although these inputs also raise the cost of production and chiefly benefit the richer cultivators.
The cultivation of rice in Bangladesh varies according to seasonal changes in the water supply. The largest harvest is aman, occurring in November and December and accounting for more than half of annual production. Some rice for the aman harvest is sown in the spring through the broadcast method, matures during the summer rains, and is harvested in the fall. The higher yielding method involves starting the seeds in special beds and transplanting during the summer monsoon. The second harvest is aus, involving traditional strains but more often including high-yielding, dwarf varieties. Rice for the aus harvest is sown in March or April, benefits from April and May rains, matures during in the summer rain, and is harvested during the summer. 

With the increasing use of irrigation, there has been a growing focus on another rice-growing season extending during the dry season from October to March. The production of this boro rice, including high-yield varieties, expanded rapidly until the mid-1980s, when production leveled off at just below 4 million tons. Where irrigation is feasible, it is normal for fields throughout Bangladesh to produce rice for two harvests annually. Between rice-growing seasons, farmers will do everything possible to prevent the land from lying fallow and will grow vegetables, peanuts, pulses, or oilseeds if water and fertilizer are available.

Agriculture in Bangladesh


Map showing the growing areas of major agricultural products.
Bangladesh has a primarily agrarian economy. Agriculture is the single largest producing sector of the economy since it comprises about 18.6% (data released on November, 2010) of the country's GDP and employs around 45% of the total labor force. The performance of this sector has an overwhelming impact on major macroeconomic objectives like employment generation, poverty alleviation, human resources development and food security.
Most Bangladeshis earn their living from agriculture. Although rice and jute are the primary crops, wheat is assuming greater importance. Tea is grown in the northeast. Because of Bangladesh's fertile soil and normally ample water supply, rice can be grown and harvested three times a year in many areas. Due to a number of factors, Bangladesh's labor-intensive agriculture has achieved steady increases in food grain production despite the often unfavorable weather conditions. These include better flood control and irrigation, a generally more efficient use of fertilizers, and the establishment of better distribution and rural credit networks. With 35.8 million metric tons produced in 2000, rice is Bangladesh's principal crop. National sales of the classes of insecticide used on rice, including granular carbofuran, synthetic pyrethroids, and malathion exceeded 13,000 tons of formulated product in 2003. The insecticides not only represent an environmental threat, but are a significant expenditure to poor rice farmers. The Bangladesh Rice Research Institute is working with various NGOs and international organizations to reduce insecticide use in rice.
In comparison to rice, wheat output in 1999 was 1.9 million metric tons. Population pressure continues to place a severe burden on productive capacity, creating a food deficit, especially of wheat. Foreign assistance and commercial imports fill the gap. Underemployment remains a serious problem, and a growing concern for Bangladesh's agricultural sector will be its ability to absorb additional manpower. Finding alternative sources of employment will continue to be a daunting problem for future governments, particularly with the increasing numbers of landless peasants who already account for about half the rural labor force.

 Food crops

Although rice and jute are the primary crops, maize and vegetables are assuming greater importance. Due to the expansion of irrigation networks, some wheat producers have switched to cultivation of maize which is used mostly as poultry feed. Tea is grown in the northeast. Because of Bangladesh's fertile soil and normally ample water supply, rice can be grown and harvested three times a year in many areas. Due to a number of factors, Bangladesh's labor-intensive agriculture has achieved steady increases in food grain production despite the often unfavorable weather conditions. These include better flood control and irrigation, a generally more efficient use of fertilizers, and the establishment of better distribution and rural credit networks. With 28.8 million metric tons produced in 2005-2006 (July–June), rice is Bangladesh's principal crop. By comparison, wheat output in 2005-2006 was 9 million metric tons. Population pressure continues to place a severe burden on productive capacity, creating a food deficit, especially of wheat. Foreign assistance and commercial imports fill the gap. Underemployment remains a serious problem, and a growing concern for Bangladesh's agricultural sector will be its ability to absorb additional manpower. Finding alternative sources of employment will continue to be a daunting problem for future governments, particularly with the increasing numbers of landless peasants who already account for about half the rural labor force.
Bangladesh is the fourth largest rice  producing country in the world. National sales of the classes of insecticide used on rice, including granular carbofuran, synthetic pyrethroids, and malathion exceeded 13,000 tons of formulated product in 2003. The insecticides not only represent an environmental threat, but are a significant expenditure to poor rice farmers. The Bangladesh Rice Research Institute is working with various NGOs and international organizations to reduce insecticide use in rice.
Wheat is not a traditional crop in Bangladesh, and in the late 1980s little was consumed in rural areas. During the 1960s and early 1970s, however, it was the only commodity for which local consumption increased because external food aid was most often provided in the form of wheat. In the first half of the 1980s, domestic wheat production rose to more than 1 million tons per year but was still only 7 to 9 percent of total food grain production. Record production of nearly 1.5 million tons was achieved in FY 1985, but the following year saw a decrease to just over 1 million tons. About half the wheat is grown on irrigated land. The proportion of land devoted to wheat remained essentially unchanged between 1980 and 1986, at a little less than 6 percent of total planted area.
Wheat also accounts for the great bulk of imported food grains, exceeding 1 million tons annually and going higher than 1.8 million tons in FY 1984, FY 1985, and FY 1987. The great bulk of the imported wheat is financed under aid programs of the United States, the European Economic Community, and the World Food Programme.
Food grains are cultivated primarily for subsistence. Only a small percentage of total production makes its way into commercial channels. Other Bangladeshi food crops, however, are grown chiefly for the domestic market. They include potatoes and sweet potatoes, with a combined record production of 1.9 million tons in FY 1984; oilseeds, with an annual average production of 250,000 tons; and fruits such as bananas, jackfruit, mangoes, and pineapples. Estimates of sugarcane production put annual production at more than 7 million tons per year, most of it processed into a coarse, unrefined sugar known as gur, and sold domestically.

Soliris Approval Expanded to Include Rare Blood Disorder





Soliris (eculizumab) has been approved by the U.S. Food and Drug Administration as the first drug to treat atypical hemolytic uremic syndrome (aHUS), a rare blood disease that may trigger kidney failure, stroke or death.
Most people with aHUS are children, the FDA said in a news release. The atypical form affects up to 10 percent of all cases of hemolytic uremic syndrome.
Solaris was first approved in 2007 to treat another rare blood disorder, paroxysmal nocturnal hemoglobinuria (PNH). In people with aHUS, the drug limits the activities of proteins that play a role in the disease, the FDA said.
Soliris has been classified as an orphan drug, the agency said, meaning the drug has demonstrated promise in treating rare diseases or conditions.
In clinical testing of people with aHUS, Soliris' most common side effects included high blood pressure, diarrhea, headache, anemia, nausea and vomiting, infections of the upper respiratory tract and urinary tract, and a decrease in white blood cells.
The drug may also increase users' risk of life-threatening meningococcal infections. It will continue to be made available only via a restricted delivery program, under which prescribers must register with the FDA, the agency said.
Soliris is marketed by Alexion Pharmaceuticals, based in Cheshire, Conn.
More information
The FDA has more about this approval.

Scientists ID More Genes Linked to Heart Disease





Researchers have identified five new genes that play a role in people's risk for heart attack and coronary artery disease -- the most common cause of premature death and disability in the world, according to a new study.
The international consortium said their discovery could help scientists predict coronary artery disease (CAD) and develop new treatments for the condition.
In conducting the study, published online Sept. 22 in the open-access journal PLoS Genetics, the researchers examined more than 49,000 genetic variants in nearly 15,600 cases of CAD along with slightly fewer than 35,000 controls, which included people of European descent and South Asian origin. The investigators also duplicated their findings in 17,121 more cases of the disease and 40,473 controls.
"This is one of the first genetic studies of CAD to include a significant proportion of subjects of South Asian origin, an ethnic group that has a higher risk of CAD," John Danesh, the study's co-principal investigator, said in a journal news release. "Our study shows that many of the genes that affect risk of CAD do so similarly in European Caucasians as in South Asians."
The study findings add to the list of more than 30 genes already known to affect people's risk for coronary artery disease and heart attack, the authors pointed out.
"The findings provide new insights into and understanding of the causal biological pathways that cause heart disease, and particularly highlight the role of lipids and inflammation," the study's co-principal investigator, Nilesh Samani, British Heart Foundation professor of cardiology at the University of Leicester, U.K., said in the news release.
The study authors pointed out that although the individual effects of the new genetic variants they found are small, the treatments that are developed as a result of the findings could have a much broader effect.
More information
The U.S. National Library of Medicine has more about coronary artery disease.