春耕备肥需求旺，粮食ETF广发涨2.84%

Group 1 - The Shanghai Composite Index rose by 1.15%, the Shenzhen Component Index increased by 1.92%, and the ChiNext Index gained 1.99% as of February 24 [2] - The Grain ETF from GF Securities (159587) increased by 2.84%, with several component stocks such as Andong Biological (603077.SH) and Chuanfa Longmang (002312.SZ) hitting the daily limit [2] - The current winter wheat is entering the greening phase, which is crucial for spring management, with the national supply and marketing cooperative system having procured 20 million tons of fertilizers to ensure timely supply [2] Group 2 - By the end of 2025, genetically modified corn planting is expected to expand to 13 provinces, with an annual planting area of 3 to 5 million acres, accounting for 10% to 15% of the national corn area [3] - The promotion of traits such as pest resistance and herbicide tolerance will increase the demand for certain herbicides and insecticides [3] - The agricultural sector is characterized by domestic supply shortages and historically low asset prices, making it an attractive investment opportunity due to its unique attributes and the need to protect farmers' income [3]