What is the optimal media for growing vegetable seedlings in Pro-trays? (RJ Pre PG 2018)

✅Explanation: This mixture provides a good balance of water retention, aeration, and nutrient availability for optimal seedling growth in pro-trays. Cocopeat retains moisture, sand provides drainage, and soil offers essential nutrients. The 2:1:1 ratio ensures adequate drainage and aeration while still retaining enough moisture.