来场“麦海战术” ——“晚播小麦逆袭手册”系列报道②

Core Viewpoint - The article discusses the challenges and strategies related to late sowing of winter wheat in Henan province, emphasizing the importance of adjusting sowing techniques to ensure optimal yield despite delayed planting due to weather conditions [2][4]. Group 1: Challenges of Late Sowing - Late sowing of winter wheat has resulted in concerns about reduced seedling numbers and overall yield, as the late planting affects the growth cycle and the ability of the plants to develop adequately before winter [2][4]. - The researcher highlights that late-sown wheat experiences fewer tillers, which are crucial for yield, and suggests that farmers need to compensate for this by increasing the sowing density [4]. Group 2: Strategies for Mitigation - Farmers are advised to increase the sowing amount by approximately 5-6 jin (about 3.125-3.75 kg) per mu (0.067 hectares) to counteract the effects of late sowing, aiming for a target of 30,000 seedlings per mu [2][3]. - The article outlines a specific strategy called "密补晚" (using density to compensate for late sowing), where the sowing amount is gradually increased as the planting date is delayed, with a maximum limit set to avoid weak seedlings [4]. Group 3: Technological Support and Practices - Continuous technological support is provided to farmers, with experts offering guidance throughout the planting season to ensure proper management practices are followed [3]. - The use of soil compaction techniques post-sowing is recommended to enhance seedling emergence and resilience against adverse weather conditions [3].