Cambodian Horticulture Advancing Income and Nutrition (CHAIN) The last phase of the mandated Cambodian Horticulture Advancing Income and Nutrition Project will focus on sustainability and scalability of horticulture business models for farmers and businesses, supports quality extension services under the leadership of National and Provincial Agriculture Offices. Strengthened local market systems and improved water access for year-round safe vegetable production will increased income for7,200 farmers and young migrants in four north-eastern provinces.