Productive performance of oat rotation in spring fallow in Wumeng Mountain Area

To solve the problem of idle spring fields and low yield per unit land area in Wumeng Mountain area, China, a comprehensive evaluation test of the production performance and nutritional quality of 12 oat varieties was carried out. The results showed that, among the 12 oat varieties, Aiwo, Yanwang, and Lingxiu had the best performance in terms of hay yield at 14.42, 14.13, and 12.13 t·ha^–1, respectively. In terms of nutritional quality, Muwang and Beile No.2 showed the highest crude protein content, the highest neutral detergent fibers content, and low acid detergent fibers level. Through calculation of the protein yield per unit area of the different oat varieties, it was concluded that Yanwang, Muwang, Aiwo, and Meida performed the best, with protein yield of up to 1.22, 1.16, 0.96, and 0.92 t·ha^–2. Yanwang and Muwang had the largest weighted correlation and the best comprehensive production performance. They can be used as the main varieties in the idle spring fields of Wumeng Mountain area.