Research on the production effect of replanting forage corn after oat in Jinta County

Zhang Silong; Wang Chongqiang; Bian Guoqiang; Sun Kang; Wang Zhilong; Li Shikun

doi:10.20154/j.cnki.issn1672-9692.2025.10.003

Abstract：The experiment took Jinta County as the site for the multiple cropping of forage crops to study the production effect of the multiple cropping of oat grass and forage corn.By comparing the agronomic traits,production performance,nutritional quality and other indicators of three oat grass and three multiple cropping forage corn varieties with the production status of forage corn planted in the regular season,the production effect and feasibility of different varieties of oat grass and multiple cropping forage corn were determined.The results showed that in terms of agronomic traits,the plant height of the Mondragon variety was 147.67 cm,significantly higher than that of Morgan and Caesar(P<0.05).The average node height of the Mondragon variety was 23.97 cm,significantly higher than that of Morgan(P<0.05).The plant height of Jiyu 516 was 273.33 cm and the stem diameter was 21.75 mm,which were significantly higher than those of Yefeng 402(P<0.05).The indicators such as the number of leaves,spike height,stem weight and leaf weight were also the highest.The emergence rate of Yefeng 402 was 92.59％,significantly higher than that of Gaoyu 2300(P<0.05).In terms of production performance,Jiyu 516 had the highest cluster yield(30.03 t/hm2),which was significantly higher than that of Yefeng 402(P<0.05).The fresh grass yield of Jiyu 516 was 68.55 t/hm2,significantly higher than that of Gaoyu 2300(P<0.05).In terms of nutritional quality,Morgan had the highest dry matter digestibility and relative feed value,reaching 62.30％and 105.56 respectively,which were significantly higher than those of Caesar(P<0.05).The crude protein content of Jiyu 516 was 9.13％and its relative feed value was 154.86,which was significantly higher than that of Gaoyu 2300(P<0.05).Research shows that the forage production method of re-planting forage corn after the harvest of oat grass can effectively increase forage yield and meet the demand for forage supply,and is suitable for promotion in Jinta area.