Thailand's centuries-old rice cultivation system is under severe stress from climate change, unsustainable farm debts and a lack of innovation, reports say.

About one-third of China's wheat is grown in Henan province, earning it the nickname the granary of China.

Economists say annual headline inflation will likely start easing from September's peak because of a jump in the index in corresponding months last year, but price pressures on grains, vegetable and milk will persist.

Top farming and food firms could lose up to a quarter of their value by 2030 if they do not adapt to new government policies and consumer behaviour tied to climate change, report says.

More than 70 days of extreme temperatures and low rainfall have wreaked havoc along the basin of the Yangtze, which supports more than 450 million people as well as a third of the country's crops.

The war with Russia cut fuel supplies just as farmers stepped up work for the spring season and they have lost about 85% of their normal supplies since the conflict started on Feb 24, farmers, fuel distributors and analysts say.

Emil and his partner Tony Yong hope to expand the Fresh Growcer initiative from an urban vegetable patch to an eco-tourism centre where people can come and learn about sustainable farming.

Chachoengsao is one of three provinces covered by the Eastern Economic Corridor project that includes a high-speed railway line, an airport and upgrades to two deep-sea ports in an area of about 1.3 million hectares.

Experts say obstacles remain to achieving self-sufficiency, caused in part by a lack of downstream activities and a heightened focus on industrial crops.