藏粮于地：盐碱地破"碱"重生 盐碱地既是亟待唤醒的耕地后备资源，更是保障粮食安全的"潜在粮仓"。山东拥有的近900万亩盐碱 地，使其成为探索盐碱地治理路径的"天然试验场"。 从"靠天吃饭"到筑牢"齐鲁粮仓" 山东用"芯"端稳饭碗 中新网济南9月25日电(李欣 李明芮 孙婷婷)从与黄河三角洲盐碱荒滩艰苦博弈，到在一粒种子间寻求关 键突破，再到向产业链全程要效益、挖掘"无形良田"，山东保障粮食安全的步履沉稳而有力，系统性筑 牢"齐鲁粮仓"。这条从"靠天吃饭"到"科技赋能"的扎实路径，彰显了山东作为农业大省的担当。 "春天白茫茫，夏天水汪汪，十年九不收，糠菜半年粮！"黄河入海口流传的这句顺口溜，曾是农民与盐 碱地抗争的苦涩注脚，也凸显了盐碱地治理的困境。 如今，盐碱地的命运正被改写。山东省农业农村厅副厅长王敬东介绍，山东将盐碱地综合利用纳入黄河 重大国家战略，探索出一条"生态优先、因地制宜、种地相适、多元利用、科技支撑"的盐碱地综合利用 新路径。 2025年6月，在东营市东营区辛店街道唐家村股份经济合作社盐碱地麦田，农机手驾驶收割机抢收 小麦。刘智峰 摄 循着分区分类的治理思路，山东为不同区域量身定制土壤改良、地力 ...

Core Points - The article discusses the advancements in space breeding technology in China, highlighting various crops and their benefits derived from space exposure [6][8][17] - It emphasizes the potential of space-bred varieties to improve agricultural productivity and sustainability, showcasing specific examples of crops like wheat, rice, and vegetables [9][10][14] Group 1: Space Breeding Technology - Space breeding combines space-induced mutations with traditional breeding techniques to create high-yield, disease-resistant crop varieties [8][17] - The unique space environment accelerates genetic evolution, allowing for the rapid development of superior traits in crops [17] Group 2: Crop Examples and Benefits - "Huangmai 802," a wheat variety, shows exceptional performance in saline-alkali soil, with yields reaching over 470 kg per mu, attracting interest from local farmers [6][9] - "Huahang Xiangyin Zhen," a rice variety, has an average yield exceeding 720 kg per mu and is recognized as a super rice variety, balancing taste and productivity [8][10] - Space-bred vegetables, such as "space cucumbers" and "space watermelons," exhibit enhanced flavor and market potential, with reports of high customer satisfaction [14][15] Group 3: Research and Development - Research teams are rigorously selecting and monitoring seeds that have undergone space travel to ensure the best traits are cultivated [7][12] - The integration of space breeding into traditional agricultural practices is seen as a pathway to modernize agriculture and enhance food security [9][17] Group 4: Economic Impact - The introduction of space-bred crops is expected to generate significant economic benefits for farmers, with improved yields and product quality leading to higher market demand [14][15] - The article highlights the potential for creating unique agricultural brands, such as "space tea," to promote local heritage and boost rural economies [13][14]

Core Viewpoint - The development and successful cultivation of salt-tolerant wheat varieties, particularly Hangmai 802, demonstrate significant agricultural advancements in saline-alkali land, which is crucial for enhancing food security in China. Group 1: Wheat Cultivation Results - In Dongying, Shandong, the Hangmai 802 wheat variety achieved a yield of 554.6 kg per mu in a saline-alkali demonstration field [1][2] - In Huanghua, Hebei, the same variety yielded 496.6 kg per mu without artificial irrigation, relying solely on rainfall [1] Group 2: Characteristics of Saline-Alkali Land - Saline-alkali land presents challenges for crop cultivation due to high salt content, requiring innovative agricultural practices [2][9] - The soil in the demonstration fields has varying salt concentrations, with Dongying at 3.01‰ and Huanghua at approximately 3.39‰ [2][4] Group 3: Development of New Wheat Varieties - Several salt-tolerant wheat varieties, including Jingmai 12, Jingmai 188, and Jimai 60, are being cultivated alongside Hangmai 802 to improve yields in saline-alkali conditions [3] - The new varieties exhibit traits such as stronger stems, larger root systems, and broader leaves, enhancing their ability to thrive in harsh environments [7] Group 4: Agricultural Techniques and Innovations - The cultivation of Hangmai 802 is supported by advanced agricultural techniques that focus on salt control and efficient water use [8] - The integration of modern green agricultural practices has improved the productivity of saline-alkali land [8][10] Group 5: National Food Security Strategy - China has over 50 million acres of saline-alkali land, with 18.5 million acres deemed suitable for agricultural use, making its development vital for food security [9] - The shift in strategy from soil improvement to the cultivation of salt-tolerant crops is a key focus of national agricultural policy [9][10] Group 6: Collaborative Research Efforts - Since 2022, a national collaborative effort involving 55 research institutions and enterprises has been established to develop salt-tolerant crops, including wheat, rice, and corn [10] - The initiative has led to the identification and promotion of numerous salt-tolerant crop varieties, enhancing agricultural resilience [10]