The federal government is changing a payment program for canola farmers to help those affected by China’s decision to ban the Canadian product. The government’s announcement comes after China barred canola shipments from two of Canada’s biggest exporters in what is considered retaliation for the detention of Huawei executive Meng Wanzhou. The maximum loan limit through the program will be boosted to $1 million from $400,000, and the portion that will be interest-free is rising to $500,000 from $100,000.