摘要
针对冀北坝上地区干旱少雨的生态特征和燕麦的水分需求特点,为有效利用水资源,研究了出苗期至抽穗期不同灌溉次数对燕麦产量的影响。结果表明:随着灌溉次数的增加,2个燕麦品种的抽穗期和成熟期均呈延后趋势,生育天数呈增加趋势。灌溉次数不多于4次时,2个燕麦品种均未发生倒伏现象。坝莜3号和坝燕6号的子粒产量分别在灌溉5次和4次时最高,分别达到了4178.70 kg/hm^2和5374.35 kg/hm^2,且极显著高于其他灌水次数处理。2个燕麦品种的干草产量均随灌溉次数的增加而显著增加,灌溉6次时达到最高值,分别为12176.10 kg/hm^2和13346.70 kg/hm^2,且极显著高于其他处理。应根据燕麦的生产目的选择灌水次数,若以子粒产量为目标,坝莜3号灌溉5次、坝燕6号灌溉4次效果最好,子粒产量达到最高;若以干草产量为目标,2个品种均以灌溉6次效果最好,干草产量达到最高。
Aming at the ecological characteristics of drought and little rain in Bashang Area of north Hebei,and the characteristics of water demand of oat,to use water resources effectively,the effects of irrigation times from emergence stage to heading stage on yield of oat were studied. The results showed that with the increase of irrigation times,the heading stage and maturation stage of two oat varieties delayed,and the growth course increased. When the irrigation times were no more than 4, there were no lodging in the two varieties. The highest seed yield of Bayou No.3 and Bayan No.6 were 4 178.70 kg/hm2和 5 374.35 kg/hm2,respectively with5 and 4 irrigation times,which were very significantly higher than those with other irrigation times. The hay yield of the two varieties increased with the increasing of irrigation times,when the irrigation times was six,the highest hay yield of Bayou No.3 and Bayan No.6 were 12 176.10 kg/hm2和 13 346.70 kg/hm2,respectively,which were very significantly higher than those with other irrigation times. The irrigation times should be selected based on the production purposes. For seed yield,Bayou No.3 and Bayan No.6 should be irrigated with 5 and 4 times,respectively,while for hay yield,they should be irrigated 6 times.
作者
耿健
左文博
丁洁
GENG Jian;ZUO Wen-bo;DING Jie(Agriculture and Rural Bureau of Funing District,Qinhuangdao City,Qinhuangdao 066300,China;Zhangjiakou Academy of Agricultural Sciences,Zhangjiakou 075000,China)
出处
《河北农业科学》
2020年第5期35-37,55,共4页
Journal of Hebei Agricultural Sciences
关键词
燕麦
灌溉次数
农艺性状
产量
Oat
Irrigation times
Agronomic traits
Yield
