摘要
旨在探讨适合吉林地区麦后复种饲用油菜与燕麦混合播种方案。试验以单播油菜(15 kg·hm^(-2))和燕麦(220 kg·hm^(-2))为对照组,按照播种量占单独播种量50%、60%、70%、80%、90%、100%的比例进行组合混播,以A~F顺序标记燕麦播种率,以1~6顺序标记油菜播种率,设定3次重复,共计108个试验小区。播种后分别在油菜抽薹期、盛花期、结荚期取样,对作物的生产性能进行评价,并采用灰色系统理论对结果进行分析。结果表明:抽薹期试验组干草产量范围是3999.89~5367.28 kg DM·hm^(-2),粗蛋白质含量范围是10.16%~13.99%,中性洗涤纤维含量范围是49.88%~64.51%,酸性洗涤纤维含量范围是36.88%~41.52%。盛花期试验组干草产量范围是5102.35~6453.52 kg DM·hm^(-2),粗蛋白质含量范围是11.28%~16.01%,中性洗涤纤维含量范围是57.99%~69.37%,酸性洗涤纤维含量范围是33.88%~48.80%。结荚期试验组干草产量范围是5737.16~6988.16 kg DM·hm^(-2),粗蛋白质含量范围是9.25%~13.12%,中性洗涤纤维含量范围是57.10%~68.88%,酸性洗涤纤维含量范围是32.99%~41.01%。表明混播处理C1在油菜抽薹期和盛花期的综合评价最高,干草产量分别为5281.23及6152.52 kg DM·hm^(-2)。混播处理C2在结荚期综合评价最优,干草产量为6988.16 kg DM·hm^(-2)。
This research explored multiple cropping planting options when following wheat with mixed cropping of forage rape and oats in the Jilin area of northeast China.The experiment comprised two control treatments and 36 mixed-cropped treatments.The control treatments were forage rape sown alone at 15 kg·ha-1 and oats sown alone at 220 kg·ha-1.The mixed-cropped treatments were a factorial combination of forage rape and oats sown at 50%,60%,70%,80%,90%or 100%of control rates,designated A to F,respectively,for variation in sowing rate of oats,and subscript 1 to 6,respectively,for variation in sowing rate of forage rape.There were three replicates making 108 plots in total.Samplings were conducted at bolting,full bloom,and pod-set growth stages to evaluate crop performance,and results were analyzed according to Grey System theory.It was found that at bolting stage,the hay yield of the experimental crops ranged from 3999.89 kg DM·ha-1 to 5367.28 kg DM·ha-1,the crude protein content ranged from 10.16%to 13.99%,the content of neutral detergent fiber ranged from 49.88%to 64.51%,and the content of acid detergent fiber ranged from 36.88%to 41.52%.At full bloom stage,the hay yield of the experimental crops ranged from 5102.35 kg DM·ha-1 to 6453.52 kg DM·ha-1,the crude protein content ranged from 11.28%to 16.01%,the neutral detergent fiber content ranged from 57.99%to 69.37%,and the acid detergent fiber content ranged from 33.88%to 48.80%.At pod setting stage,the hay yield of the experimental crops ranged from 5737.16 kg DM·ha-1 to 6988.16 kg DM·ha-1,the crude protein content ranged from 9.25%to 13.12%,the content of neutral detergent fiber ranged from 57.10%to 68.88%,and the content of acid detergent fiber ranged from 32.99%to 41.01%.As determined by multivariate analysis,for earlier harvest,the C1 treatment(forage rape 7.5 kg·ha-1,oats 154 kg·ha-1)was optimal and had forage yields of 5281.23 kg DM·ha-1 and 6152.52 kg DM·ha-1 at the bolting and full flowering growth stages,respectively;for later harvest the C2 treatment(forage rape 9 kg·ha-1,oats 154 kg·ha-1)was the best and the forage yield was 6988.16 kg DM·ha-1 at the pod-set growth stage.
作者
袁英良
唐丹
鲁英
冉桂霞
郭艳芹
YUAN Ying-liang;TANG Dan;LU Ying;RAN Gui-xia;GUO Yan-qin(Baicheng Research Academy of Animal Science,Baicheng 137000,China;Baicheng Taobei District Quality and Safety Center for Livestock and Poultry Products,Baicheng 137000,China)
出处
《草业学报》
CSCD
北大核心
2021年第7期167-178,共12页
Acta Prataculturae Sinica
基金
农业部现代农业产业技术体系建设专项资金(Cars-34)项目
白城市科技发展基金项目资助
