MINISTER of Agriculture Chan Sarun instructed landowners near the border not to lease farmland to Vietnam on Tuesday, without explaining the decision behind the policy. "We have advised provincial agriculture offices not to allow farmers to lease land to any Vietnamese," he said. Daon Ngoc Pha, deputy director of the Rural Department in Vietnam's An Giang province, has previously said there were plans to lease farmland in Cambodia, a move designed to stop Cambodian smuggling. Yang Saing Koma, president of the Cambodian Centre for Study and Development in Agriculture, said on Tuesday he supported the policy to block land leasing.