Transplanting Film Cultivation Techniques of Spring Corn

Transplanting and mulching of spring corn is an innovative agricultural technique designed to enhance seedling emergence, improve early growth, and ensure strong development of maize. This method combines the use of plastic film to protect young plants from early-season climate challenges such as frost and waterlogging, which are common in many regions. By using this system, farmers can achieve higher germination rates, better seedling establishment, and ultimately, increased yields. In Xiangshui County, for instance, 30,000 mu of spring corn was grown using this technique, resulting in an average yield of 642 kg per muâ€”an increase of 9.8% compared to traditional single-mulch methods. This approach not only improves crop resilience but also supports multi-crop systems based on corn. To implement this technique effectively, it's essential to choose the right hybrid varieties. Based on local temperature conditions, where the accumulated temperature reaches between 2650Â°C and 2800Â°C, late-maturing hybrids like Dandan 13 and Dandan 12 are ideal for achieving high yields. For double-season or single-film cultivation, medium-maturing varieties such as Dandan 22, Xiyu 3, and Suyu 9 are recommended. These varieties have compact plant structures, strong stalks, large ears, and high grain production potential, making them well-suited for transplanting under plastic film. They are typically planted in mid-July and mature without significantly affecting post-harvest operations. The process begins with the creation of a nutrient-rich seedbed. A ratio of 1:20 (seedbed to manure) is commonly used, with specific dimensions and soil preparation steps to ensure optimal conditions. Fertilizers and organic matter are mixed thoroughly, and additives like Huimanfeng are included to boost seedling health. The seedbed is then covered with plastic film, creating a warm environment that accelerates germination and promotes uniform growth. Timely transplanting is crucial. Once the seedlings reach about 2-3 leaves, they are moved to the field in mid-April. Proper watering, ventilation, and protection from extreme temperatures help maintain healthy growth. After transplanting, the mulch is removed gradually, and the plants are monitored closely for any signs of stress or disease. In addition to proper planting, fertilization plays a key role. Base fertilizers are applied before planting, including nitrogen, phosphorus, potassium, and zinc. This ensures that the plants receive sufficient nutrients during their rapid growth phase. Herbicides are also used to control weeds, improving overall field management. Pest and disease control is another important aspect. Pre-planting treatments with insecticides like carbofuran granules help prevent underground pests, while foliar sprays target diseases such as sheath blight and leaf spot. Regular monitoring and timely intervention are necessary to maintain crop health. Finally, proper drainage is essential to avoid waterlogging, especially during heavy rains. Trenches are dug to ensure efficient water flow, and irrigation is carried out during dry periods to support continuous growth. This comprehensive approach helps farmers maximize yields while adapting to changing environmental conditions.
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Posted on July 31, 2025