A farmer works in the field at Shapo vegetable base in Haikou, south China's Hainan Province, Oct. 30, 2020. The rainy weather in recent days has affected agricultural production at the vegetable base in Haikou. Many farmers of Shapo vegetable base have been busy working in the field to guarantee the market supply.Photo:Xinhua

A farmer transplants vegetable seedlings at Shapo vegetable base in Haikou, south China's Hainan Province, Oct. 30, 2020. The rainy weather in recent days has affected agricultural production at the vegetable base in Haikou. Many farmers of Shapo vegetable base have been busy working in the field to guarantee the market supply.Photo:Xinhua

Farmers harvest vegetables at Shapo vegetable base in Haikou, south China's Hainan Province, Oct. 30, 2020. The rainy weather in recent days has affected agricultural production at the vegetable base in Haikou. Many farmers of Shapo vegetable base have been busy working in the field to guarantee the market supply.Photo:Xinhua

A farmer transplants vegetable seedlings at Shapo vegetable base in Haikou, south China's Hainan Province, Oct. 30, 2020. The rainy weather in recent days has affected agricultural production at the vegetable base in Haikou. Many farmers of Shapo vegetable base have been busy working in the field to guarantee the market supply.Photo:Xinhua

Farmers transplant vegetable seedlings at Shapo vegetable base in Haikou, south China's Hainan Province, Oct. 30, 2020. The rainy weather in recent days has affected agricultural production at the vegetable base in Haikou. Many farmers of Shapo vegetable base have been busy working in the field to guarantee the market supply.Photo:Xinhua

A farmer fertilizes the farmland at Shapo vegetable base in Haikou, south China's Hainan Province, Oct. 30, 2020. The rainy weather in recent days has affected agricultural production at the vegetable base in Haikou. Many farmers of Shapo vegetable base have been busy working in the field to guarantee the market supply.Photo:Xinhua