山西左云：一粒玉米的"四季剧本"折射高寒地区农业出路 中新网大同11月21日电 (李新锁 冀利芬)从春到冬，地处塞北高原的山西省大同市左云县用一粒玉米的 四季轮回，探索着高寒地区的农业出路。 从春耕的科技育种到秋收的机械抢收，从夏天的精细管理到冬藏的科学谋划，左云县和隆源农牧专业合 作社(简称"和隆源合作社")以全链条升级破解传统农业困局，为乡村振兴注入了持久动能。 优种先行破解"看天吃饭" 每年3月，左云县的寒意尚未褪去，和隆源合作社的田地里已是一片忙碌。合作社依托独特的冷凉气候 和充足光热资源，联合左云县农业农村局筛选适应性强的高产玉米品种，为玉米出苗保驾护航。 种植户贾晓杰说："过去我们单纯凭经验选种，产量忽高忽低，近些年，我们通过对比实验选择优良的 适合当地气候的品种，亩产量大幅度提高。" 春耕时节，农业机械组团出动：深耕深松机打破犁底层，提升土壤保水能力；精量播种机按照预设行 距、株距精准下种，配合全膜覆盖技术锁住墒情。机械化播种不仅提升了效率，更实现了"种肥同播"， 为玉米全周期生长打下好底子。 机械作业助力"夏管"精准细致 入夏后，玉米进入拔节期，合作社的田间管理全面转向"精细化"。无人机搭载液 ...

Core Insights - The tourism industry in Luanchuan County is experiencing significant growth, with a projected reception of 16.5 million tourists and a total tourism revenue of 11.915 billion yuan in 2024, representing year-on-year increases of 9.36% and 12.64% respectively [1] Group 1: Tourism Growth - Luanchuan County has successfully established itself as a national-level all-region tourism demonstration area since 2020, enhancing its attractiveness as a travel destination [2] - The county features multiple scenic spots, including 5A and 4A level attractions, contributing to its reputation for natural beauty and tourism potential [2] Group 2: Infrastructure Development - Improved transportation infrastructure, particularly the completion of highways, has significantly reduced travel time, making the region more accessible and boosting local tourism [3] - As of the end of 2022, Luanchuan County's road network spans 2,020.602 kilometers, including 314.91 kilometers of national and provincial highways and 1,656.8 kilometers of rural roads [3]