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]
盐碱地上夏收,在最“年轻”的土地上种植碳水
Xin Jing Bao·2025-06-18 04:35