The Effects of Intercropping Ratio and Cutting Period on the Forage Production Performance of Rape and Oat Intercropping

doi:10.11733/j.issn.1007-0435.2026.09.032

Acta Agrestia Sinica ›› 2026, Vol. 34 ›› Issue (9): 3486-3495.DOI: 10.11733/j.issn.1007-0435.2026.09.032

The Effects of Intercropping Ratio and Cutting Period on the Forage Production Performance of Rape and Oat Intercropping

ZHONG Jia-yi¹, Saimaocuo¹, LIU Yong¹, LUO Sheng-hu², MA Xiao-ping², QIN Yan¹

1. Academy of Animal and Veterinary Sciences, Qinghai University (Qinghai Academy of Animal Science and Veterinary Medicine), Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Xining, Qinghai Province 810016, China;
2. The Grassland Station of Menyuan Hui Autonomous County, Menyuan, Qinghai Province 810300, China

Received:2025-10-30 Revised:2025-12-30 Published:2026-09-11

混作比例和刈割期对油菜-燕麦混作饲草生产性能的影响

仲家颐¹, 赛毛措¹, 刘勇¹, 罗生虎², 马晓萍², 秦燕¹

1. 青海大学畜牧兽医科学院(青海省畜牧兽医科学院), 青海省青藏高原优良牧草种质资源利用重点实验室, 青海西宁 810016;
2. 门源回族自治县草原站, 青海门源 810300

通讯作者: 秦燕, E-mail: mule119@163.com
作者简介:仲家颐(2001-),女,汉族,甘肃酒泉人,硕士研究生,主要从事牧草育种与栽培研究,E-mail:1751164992@qq.com
基金资助:
现代农业产业技术体系建设专项资金（CARS-34）资助

Abstract

Abstract: To investigate the effects of intercropping ratios and cutting periods on forage production performance in a rapeseed-oat mixed cropping system， this trial measured and analyzed forage yield and quality indicators across nine mixing ratios and three cutting periods for the rapeseed （‘Qingyou No. 21’）-oat （‘Lena’） system. Results indicated that dry hay yields at the late rapeseed flowering stage （A₂） and the rapeseed pod milk stage （A₃） were significantly higher than at the peak rapeseed flowering stage （A₁）（P<0.05）. The relative feed value at A₃ was significantly higher than at A₁ and A₂ （P<0.05）. At A₃， the 5∶5 rapeseed-oat mixture （A₃R₅O₅） exhibited the highest land equivalent ratio of 2.21. TOPSIS multi-criteria decision analysis indicated that during A₃， the 7∶3 rapeseed-oat mixture （A₃R₇O₃） achieved the highest fit index of 0.75. This treatment exhibited comparatively high hay yield （454.16 kg?hm^-2） and land equivalent （2.16）， with lower acid-detergent fiber （69.19%） and neutral-detergent fiber （38.64%） content. This constitutes an agronomic practice suitable for promotion within the study area.

Key words: Intercropping ratio, Mowing period, Mixed cultivation of rape and oat, Biomass, Forage quality, Interspecies competition

摘要： 为探究混作比例和刈割时期对油菜（Brassica napus L.）-燕麦（Avena sativa L.）混作系统饲草生产性能的影响，本试验对油菜（‘青油21号’）-燕麦（‘林纳’）混作系统9个混作比例、3个刈割时期下的饲草产量和品质指标进行了测定分析。结果表明：油菜开花末期（A₂）和油菜角果乳熟期（A₃）的干草产量显著高于油菜盛花期（A₁）（P<0.05），A₃相对饲用价值显著高于A₁和A₂（P<0.05）。在油菜角果乳熟期，油菜和燕麦混作比例为5∶5处理（A₃R₅O₅）土地当量比最高，为2.21。TOPSIS-多准则决策模型分析表明：在油菜角果乳熟期，油菜和燕麦混作比例为7∶3处理（A₃R₇O₃）贴合度最高，为0.75，其干草产量和土地当量比较高，分别为454.16 kg?hm^-2和2.16，酸性洗涤纤维和中性洗涤纤维含量较低，分别为69.19%和38.64%，是适宜研究区推广的农艺措施。

关键词: 混作比例, 刈割时期, 油菜-燕麦混作, 生物量, 饲草品质, 种间竞争

CLC Number:

ZHONG Jia-yi, Saimaocuo, LIU Yong, LUO Sheng-hu, MA Xiao-ping, QIN Yan. The Effects of Intercropping Ratio and Cutting Period on the Forage Production Performance of Rape and Oat Intercropping[J]. Acta Agrestia Sinica, 2026, 34(9): 3486-3495.

仲家颐, 赛毛措, 刘勇, 罗生虎, 马晓萍, 秦燕. 混作比例和刈割期对油菜-燕麦混作饲草生产性能的影响[J]. 草地学报, 2026, 34(9): 3486-3495.

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The Effects of Intercropping Ratio and Cutting Period on the Forage Production Performance of Rape and Oat Intercropping

混作比例和刈割期对油菜-燕麦混作饲草生产性能的影响

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