Although South Asia is one of the world's least urbanized regions, behind such poor yields are complex, many experts cite the with only about one-third of its population living in cities, relatively low social status of most cultivators and the fact that large numbers are streaming into the area The rate is expected to exceed 40 percent by the year 2030.
The urban emphasized export crops for European markets.
As farms text of a huge, hungry, and rapidly growing population consti begin to mechanize, farm laborers often have no choice but to highlight a pressing problem.
Work in urban areas has been sought since the 1970s.
Most Americans wouldn't know that a large percentage of the refugees admitted into their country come from Bhutan.
There were 75,000 Bhutanese refugees in the United States.
Settling primarily in New York, Pennsylvania, Texas, and other states, many of these immigrants have faced profound difficulties in adjusting to their new lives, suffering from a suicide rate roughly twice the national average.
It might seem odd that Bhutan, a country noted for its commitment to sustainable development, would have so many refugees.
Almost all of the refugees are Nepalese.
In the late 1800s and early 1900s, their ancestors left Nepal and settled in the foothills of southern Bhutan.
The Bhutanese authorities welcomed the influx in order to get tax revenue from the frontier zone.
By the second half of the 20th century, attitudes had changed.
Bhutan's rulers began to view the Nepalese as a foreign population that would never fit in, thus threatening Bhutan's cultural integrity.
The government of Bhutan imposed harsh regulations on people of Nepalese origin.
The "one nation, one people" policy sought cultural homogeneity.
The Nepalese language was no longer used in new schools and newcomers were forced to wear Bhutanese clothing.
Those who couldn't prove their residency in Bhutan since 1958 were considered illegal immigrants.
Many people were leaving Bhutan.
The people of Nepalese origin have been kicked out of Bhutan.
The Beldangi 2 Camp is one of the refugee camps in Nepal where many are forced to live by the Bhutanese army.
More than 18,000 people lived at this camp.
Most of the refugees ended up in seven camps in southeastern Nepal, which would pose a national security threat.
The UN High Commissioner for Refugees and the government of both countries could agree on a preference for settlement outside of the camp.
The United States, Australia, Canada, Norway, and other foreign countries agreed to accept rates of malnutrition and widespread suffering from scurvy, nese refugees.
By the time of New Zealand, the conditions had improved greatly.
Most of the rest of the population moved to Canada and Australia after the millennium.
20,000 people are seen as models with good schools and security.
Bhutan's government thinks that most of their people want out.
There were 15 rounds of talks up to 2011.
The techniques based on hybrid crop strains and the heavy use of amount of rice grown in South Asia is impressive.
The Green Revolu is the sixth largest rice producer and carries significant social and environmental costs.
In the northern and western parts of India, wheat is the main crop.
South Asia's Crop Zones can be divided into several distinct "breadbaskets", all of which are located in the northwestern Indian states of Punjab and Haryana.
The Green Revolution has been particularly successful in the production of rice, wheat, and millet.
In the less-fertile areas of central India, millet Rice is the main crop and foodstuff in the lower Gan and sorghum are the main crops, along with root crops such ges Valley, along the lowlands of India's eastern and western ice are the preferred sta coasts.
This distribution shows the people who consume rough grains.
Hindus in northeastern India are less vegetarian than those in the west.
Brahmins in Bengal are allowed to eat fish, which can seem shocking to those from western India.
Grain production in South Asia was able to keep up with population growth thanks to the Green Revolution.
The traditional crop varieties would grow too tall and fall to the ground before they were mature, so simply applyingfertilizer to attain higher yields did not work with them.
The solution was to cross-breed new "dwarf" crop strains that respond to heavy fertilization by producing more grain.
By the 1970s, it was clear that the initial goals had been achieved.
The Punjab's position as the region's breadbasket was solidified by the adoption of the new "miracle wheat" varieties by the more prosperous farmers.
The more humid areas adopted Green Revolution rice strains.
Between 1970 and the mid 1990s, India doubled its annual grain production.
Many people argue that millet cess is an essential part of the diet in the poorer parts of South Asia.
The people in this photograph are winnowing the finger-millet harvest in the ticides because the new crop varieties Indian state of Karnataka.
They need large quantities of industrialfertilizer, which is both expensive and harmful to the environment.
A study was done in 2015.
In 386 of India's 676 districts, oil seeds that exceed permissible levels in wells are grown.