揭阳市揭西县：科技赋能乡村产业振兴

Core Insights - The "fish-vegetable symbiosis" demonstration base in Pankeng Village, Jiexi County, represents a significant innovation in modern agriculture, showcasing a sustainable model that integrates aquaculture and agriculture without traditional farming methods [1][2][3] Group 1: Project Overview - The project is a collaboration between Pankeng Village and Guangdong Yonggao Agricultural Co., Ltd., with the first phase completed and operational by January 2025 [2] - The system utilizes circular fish ponds and sand-based vegetable cultivation, eliminating the need for water changes in fish farming and fertilizers in vegetable growing [2] Group 2: Technological Advancements - The fish-vegetable symbiosis system has achieved a nitrogen utilization rate increase from 30% to 85%, and water resource recycling rate exceeds 90% [2] - The output per unit area has improved by 3 to 5 times, with a 30% reduction in vegetable growth cycles and a 50% increase in fish production [2] Group 3: Environmental Impact - The system promotes zero pollution and sustainable development, avoiding the use of chemical fertilizers and pesticides, which are common in traditional agriculture [3] - The natural biological control system significantly reduces pests, contributing to a healthier ecosystem and serving as a model for ecological agriculture [3]