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Five key points for raising onion seedlings: master the technique to grow strong seedlings
1. Choose superior varieties. In production, purple-skinned varieties such as Ziyu No. 1, Ziyu No. 2, Zixing, and Shuanghuanhong can be selected. These varieties have the characteristics of strong pungency, high yield, excellent quality, and suitability for export. These varieties generally yield about 5000 kg per mu, and high-yielding plots can reach 7500 kg per mu. 2...