Core Insights - The winter vegetable harvest in Sanya, Hainan, has begun, with significant production expected to support the market before the Spring Festival [1][3] - Sanya's winter vegetable planting area is projected to reach 166,100 acres, with an expected yield of over 340,000 tons [3][5] Group 1: Production and Harvesting - Farmers in Sanya are currently harvesting cucumbers, with individual farmers like Li Junning expecting to collect two to three thousand pounds in a single day [1][5] - The largest area for winter vegetable cultivation in Sanya is located in the Yazhou District, where 30,000 acres have been prepared for planting, involving approximately 4,300 households [3][5] - The peak harvest period for Sanya's vegetables will see products shipped nationwide, with cucumbers and other vegetables expected to be available in large quantities starting January next year [5][7] Group 2: Agricultural Strategy and Crop Management - The Hainan Provincial Department of Agriculture has proposed adjustments to winter vegetable planting, focusing on stabilizing melon production, increasing bean varieties, and reducing pepper cultivation [5][7] - Sanya is implementing advanced agricultural techniques, such as the "insect net+" green pest control technology for cowpeas, and promoting the "netted cowpea" brand [5][7] - The introduction of high-yield, disease-resistant varieties through the "South Breeding" program has resulted in significant yield increases, with cowpea varieties yielding over 4,000 pounds more per acre compared to traditional varieties [7] Group 3: Research and Development - Sanya is leveraging its favorable climate and research partnerships with institutions like the Chinese Academy of Tropical Agricultural Sciences to introduce and test new vegetable varieties [7] - The establishment of a healthy seedling production base aims to support local vegetable production, with plans to produce at least 10 million seedlings annually through intensive factory-style cultivation [7]

Core Insights - The article highlights the transformation of Sanya's Yazhou Bay into a high-tech innovation hub, showcasing advancements in agricultural technology and deep-sea research [1][2][3] Group 1: Agricultural Innovation - The introduction of salt-tolerant rice varieties has led to significant agricultural productivity, with "Jinsi You 98" yielding 327.2 kg per mu and "Qingliang You 3261" exceeding 400 kg per mu under saline conditions [1] - The establishment of the Yazhou Bay Seed Laboratory in May 2021 has facilitated collaboration among top research institutions and industry leaders, enhancing breeding innovation [1][2] Group 2: Deep-Sea Research - The successful sea trial of the deep-sea heavy-load mining vehicle "Kaituo No. 2" at a depth of 4000 meters marks a significant achievement in deep-sea research [2] - Yazhou Bay's proximity to deep-sea areas, with the nearest 1000-meter depth only 164 kilometers away, provides a unique advantage for conducting deep-sea research and experiments [2] Group 3: Future Prospects - The ongoing development of Yazhou Bay Technology City reflects a commitment to both agricultural and marine innovation, with expectations for further breakthroughs as more research resources converge [3]