Study on production performance and nutritional quality of 10 different varieties of forage maize varieties in dry platform fields in central Gansu Province
The experiment aimed to select a forage maize variety with strong adaptability for the dry terraced fields in central Gansu Province.In 2022,10 forage maize varieties were introduced for screening trials in Yuzhong County,which was representative of the dry terraced fields in central Gansu Province.The main variety Longdan No.4 was used as the control(CK),and a comparative experiment was conducted on the nine introduced forage maize varieties.The experiment determined and analyzed the agronomic traits,grass yield,and nutritional components of the forage maize.The results showed that all 10 forage maize varieties could be harvested on time after spring sowing in the dry terraced fields of central Gansu Province.In 2022,the annual equivalent fresh grass yield of Haoyu No.2 and Longdan No.4(CK)was relatively high,at 40 305.36 kg/hm2 and 36 638.33 kg/hm2,respectively,with the equivalent dry grass yield being 13 432.48 kg/hm2 and 11 652.11 kg/hm2,respectively.Among the ten tested forage maize varieties,Xianyu 1483 had the lowest acid detergent fiber content,meeting the national first-class silage corn standard,but its yield was too low.The study indicates that Haoyu No.2 has the strongest adaptability in the dry terraced fields of central Gansu Province,with the highest yield and better nutritional quality,meeting the national second-class silage corn standard.It is a forage maize variety with potential for promotion.
forage maizefield screeninghigh cold area in central Gansuproduction performancenutritional quality
万方数据
维普
