Articles

Protected cultivation has emerged as an advanced agricultural technology for improving vegetable production, quality, and resource-use efficiency under changing climatic conditions. It involves the cultivation of crops in controlled or partially controlled environments using structures such as greenhouses, polyhouses, shade nets, low tunnels, insect-proof net houses, and walk-in tunnels. These technologies enable growers to regulate environmental factors including temperature, humidity, light intensity, carbon dioxide concentration, and irrigation, thereby creating optimal conditions for plant growth throughout the year. Protected cultivation minimizes the adverse effects of extreme weather, pests, diseases, and abiotic stresses while increasing crop productivity and ensuring a consistent supply of high-quality vegetables. The adoption of modern irrigation systems, fertigation, hydroponics, precision nutrient management, and integrated pest management further enhances water-use efficiency, fertilizer-use efficiency, and crop health. Vegetables produced under protected structures generally exhibit higher yields, improved size, better color, enhanced nutritional quality, reduced pesticide residues, and longer shelf life compared to open-field cultivation. Recent advancements in Internet of Things (IoT), Artificial Intelligence (AI), Geographic Information Systems (GIS), Remote Sensing (RS), automation, robotics, and smart climate-control systems have transformed protected cultivation into an efficient precision farming approach. Despite its numerous benefits, challenges such as high initial investment, energy requirements, technical complexity, and limited farmer awareness continue to restrict widespread adoption. This paper examines the various protected cultivation technologies, evaluates their influence on vegetable production and quality, discusses their role in sustainable resource management, and explores emerging technologies and future prospects for climate-resilient vegetable production.

Post-harvest management is a critical component of horticultural production that focuses on preserving the quality, safety, and marketability of fruits and vegetables after harvest. Globally, a significant proportion of fresh produce is lost due to improper harvesting, handling, transportation, storage, packaging, and marketing practices. These post-harvest losses reduce farmers' income, increase food waste, and threaten food and nutritional security. Effective post-harvest management practices, including proper harvesting techniques, pre-cooling, grading, sorting, packaging, cold chain management, controlled atmosphere storage, modified atmosphere packaging, waxing, edible coatings, and hygienic handling, play a vital role in extending shelf life and maintaining product quality. Modern technologies such as refrigerated transport, smart packaging, Internet of Things (IoT)-based storage monitoring, Artificial Intelligence (AI), Geographic Information Systems (GIS), blockchain-based traceability, and sensor technologies have significantly improved post-harvest handling and supply chain efficiency. These innovations reduce physiological deterioration, microbial spoilage, moisture loss, mechanical damage, and quality degradation while preserving nutritional value and consumer acceptability. Improved post-harvest management enhances market opportunities, export potential, and profitability by delivering safe, high-quality produce to consumers. However, inadequate infrastructure, limited cold storage facilities, poor transportation systems, high investment costs, and insufficient technical knowledge continue to constrain efficient post-harvest management in many developing countries. This paper examines major post-harvest management practices, evaluates their influence on shelf life and quality, discusses their role in reducing post-harvest losses, and explores emerging technologies and future prospects for sustainable horticultural supply chains..