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How does Bangladesh prepare farmers for the increasing salinity of soil?

How does Bangladesh prepare farmers for the increasing salinity of soil?

Salination of soils along the Bangladesh coast

Saltier soils will prevent many crops from growing in the dry season

Farmers are being educated on how to deal with the drought

Rachel Parsons

Bashar had no idea what she was going to see two years ago, when her land near Rampal (about 60 miles (97km) upstream the Rupsa river from the Bay of Bengal) grew nothing in the dry seasons. The soil was too salty.

She says "I bought the cattle" with the extra money. She nods to a scrawny animal tied to a tree in front her house.

During Bangladesh's long dry season, soil and water salinity destroys crops. This means that much of the coastal farmland is left fallow during the rainy seasons when most farmers plant rice.

Saltwater intrusion has been exacerbated by storm surges, cyclones, poor water management practices and saltwater shrimp farming.

Climate change makes things worse. By 2050, the United Nations Food and Agriculture Organization (UNFAO) predicts that half of all arable lands in the world will be affected with salinity.

According to a report in Natural Resources Forum, a journal of sustainable development, published by the United Nations, the economic damage caused around the world costs over $27 billion per year.

The Bangladesh Ministry of Agriculture, with the help of foreign aid, has partnered up with a number of NGOs in order to train tens of thousand farmers, like Bashar, on how and what to plant in soils that are salty.

A RISING TIDE of CHALLENGES is facing BETTER farming

Bashar has now access to salt-tolerant seed and has dug drainage channels and raised her planting beds. She was taught to use rice straw mulch to reduce evaporation, which increases salinity.

Bashar now has an inexpensive, simple salinity meter from Cordaid, a partner NGO. She also has a rainwater irrigation system that is low-tech.

The Bangladesh Rice Research Institute reported that the amount of land returned to production during the dry season, when soil salinity was highest, had increased by 270% in comparison to 2016. However the institute stated that this result has not been independently verified.

Bashar, and the tens or thousands of women like her, consider Bangladesh's programme a success. But it is not without its flaws. Climate change and the lack of freshwater are threatening all that she has accomplished.

Mazharul Anwar of the On-Farm Research Division of the Bangladesh Agriculture Research Institute (one of the program partners) said that the pattern of raining was uneven back in the past 20 or 15 years. "Now, the pattern of raining has changed."

In April of last year, an extreme heatwave made the salinity in this area worse due to evaporation. Months later, heavier than normal rains led to devastating flooding.

At the end of the season, when the salinity is at its highest, Bashar had some salt-tolerant plants growing. However, her mango trees were too salty to bear fruit.

SHRIMP FARMING ADDS TO THE PROBLEM

The problem is compounded by the shrimp farming that has been widespread in Bangladesh's coast region since the 1980s. Bashar and husband filled their shrimp pond with saltwater like many others. But the water seeped into their fields and freshwater fishpond.

Zainal Abedin (former Cordaid programme coordinator) said that farmers are aware their land is never completely free of salt.

He said, "They are aware of the negative effects of climate change." All coastal farmers suffer.

Bangladesh has faced serious food issues before.

Anwar pointed out how Bangladesh has fought to be self-sufficient in the production of rice, although some Bangladeshi media reports disagree that Bangladesh is fully self-sufficient.

Between 1970 and 2023 the rice production has more than tripled, from 10,82 million to 41.3 million tons.

He said: "Now we're trying to become (self-sufficient) in nutrition." This type of programme, which allows millions of smallholders to produce nutritious food to feed themselves and their families and earn a living on their own land is helping.

Cordaid's country director for Bangladesh, Douwe Dijkstra says that 25 million people may migrate away from coastal areas over the next few decades.

(source: Reuters)