中国草地学报2025，Vol.47Issue(12)：87-95,9.DOI:10.16742/j.zgcdxb.20250135
补播饲用燕麦对天然草原打草场饲草生产性能及土壤养分的影响
Effects of Reseeding Forage Oats on Forage Production Performance and Soil Nutrients in Natural Grassland Hay Field
摘要
Abstract
This study was conducted on the typical grassland hayfield in Xilingol League,Inner Mongo-lia.Three experimental treatments:control(CK),reseeding of forage oat(RA),and reseeding of forage oat+fertilization(RA+DP),were established to investigate the effects of reseeding forage oat on the forage production capacity,forage quality,community diversity,and soil nutrients of natural grassland.The results showed that under the RA+DP treatment,the dry hay yield was 3 286.47 kg/hm²,of which the oat yield was 2 020.52 kg/hm² and the natural forage yield was 1 264.95 kg/hm².The total forage yield under the RA+DP treatment was 208.94%higher than that of the control and 139.61%higher than that of the RA treatment.The dry oat hay yield under the RA+DP treatment improved 1 816.94 kg/hm² compared with that of the RA treatment.In the 0-10 cm soil layer,the available phosphorus content of the in-row soil under the RA+DP treatment was 3.92 mg/kg,which was 246.90%higher than that of the con-trol,while the available phosphorus content of the inter-row soil under the RA+DP treatment was 1.43 mg/kg,showing no significant difference from the control.The study on community diversity indi-cated that the Shannon index under the RA+DP treatment(1.02)was not significantly different from that of the control(1.20),while there was no significant difference in the number of species among the three groups.The reseeding of forage oat+fertilization measures can significantly increase the grassland produc-tion capacity and forage quality in natural grassland with sufficient precipitation,which is an effective mea-sure to enhance grassland productivity.Moreover,short-term reseeding+fertilization(diammonium phos-phate)did not reduce the species diversity of the grassland.关键词
补播/饲用燕麦/天然草原/饲草生产性能Key words
Reseeding/Avena sativa/Natural grassland/Forage production performance分类
农业科技引用本文复制引用
CUI Yingying,WU Shuixin,LI Xiliang,YAN Xiaohong,CHEN Xiang,JIN Jing,SUN Shixian..补播饲用燕麦对天然草原打草场饲草生产性能及土壤养分的影响[J].中国草地学报,2025,47(12):87-95,9.基金项目
国家重点研发项目(2024YFD1300300) （2024YFD1300300）
内蒙古自治区重点研发和成果转化项目(2022YFDZ0034) （2022YFDZ0034）
科尔沁和浑善达克沙化草原修复与提质增效关键技术研发与示范项目(CCPTZX2023B02) （CCPTZX2023B02）
