From VOA Learning English, this is the Agriculture Report.
A new study says the speed and severity of climate change could cause major damage to small African farms. These farmers are already struggling to deal with the effects of climate change.
The study was released at the African Green Revolution Forum in Addis Ababa, Ethiopia. David Sarfo Ameyaw was a lead producer of the report. He is a director at the Alliance for a Green Revolution in Africa.
He said small farm owners produce about 80 percent of the food needed in Africa. These farmers grow most of the main crops in Africa on fields from two to 10 hectares in size. But, small farms in Africa are much less productive than those in other places.
Mr. Ameyaw said a main reason is weather. He said most of the African farms are rain-fed. The farmers deal with drought often.
The AGRA report says farmers in sub-Saharan Africa are also seeing rising temperatures. Mr. Ameyaw said an expected rise of as much as 2.5 degrees Celsius in the next 35 years will result in smaller harvests.
Climate change is also expected to affect the average length of the growing season. This could continue to reduce the already-low crop yields from each hectare.
Mr. Ameyaw said experts are urging African farmers to take steps to reduce the effects of climate change. They suggest that small-scale farmers grow new kinds of crops that require less manufactured fertilizer.
Other new crops can grow well in times of drought. These include maize, sweet potato, sorghum, soybean and cassava.