摘要
研究不同矿化度微咸水和再生水在不同灌水量条件下,盆栽棉花出苗率、苗期冠层和根生长情况,探索微咸水和再生水在棉花灌溉中的应用技术。试验设置灌水量和水质2个试验因素,研究灌水量和水质处理对盆栽棉花出苗率、苗期冠层和根系生长的影响。结果表明,出苗率、苗期冠层和根系生长随灌水量减少而降低;2~4 g/L微咸水和再生水处理促进出苗,高于4 g/L微咸水抑制出苗;在环境温度较低时,2~4 g/L微咸水和再生水处理促进冠层生长和根系生长;在环境温度较高时,2~6 g/L微咸水处理抑制冠层生长和根系生长,再生水处理促进冠层生长,抑制根系生长。该研究为再生水应用于棉花灌溉提供参考。
This purpose of the paper is to analyze the seedling germination rate, canopy growth and root growth of potted plant cotton under the condition of different salinity brackish water and reclaimed water, and to the application technology of the brackish water and reclaimed water for cotton irrigation. The experiment sets two factors of irrigation water and water quality, the effects of irrigation amount and water qual- ity treatment on the seedling rate, canopy growth and root growth of potted cotton are studied. The results show that the rate of seedling emer- gence , canopy growth and root growth decrease with the decrease of irrigation amount ; 2-4 g/L brackish water and reclaimed water treat- ment promote seedling emergence, the treatment of higher than 4 g/L brackish water inhibits seedling emergence; canopy growth and root growth decrease with the decrease of irrigation amount; when the ambient temperature is low, the 2 ~ 4 g/L micro salt water and reclaimed water treatment can promote the growth and root growth of the canopy ; when the ambient temperature is high, the 2- 6 g/L slightly saline water treatment inhibits the growth of canopy and root growth; the regeneration water treatment promotes the growth of the canopy. The study provides reference for the application of brackish water and reclaimed water for irrigation of cotton.
作者
潘秋艳
刘玉春
徐倩
孙红春
李存东
朱浩
白彩虹
PAN Qiu-yan LIU Yu-chun XU Qian SUN Hong-chun LI Cun-dong ZHU Hao BAI Cai-hong(College of Urban and Rural Construction, Agricultural University of Hebei, Baoding 071001, Hebei Province, China College of Agriculture, Agricultural University of Hebei, Baoding 071001, Hebei Province, China)
出处
《节水灌溉》
北大核心
2017年第5期29-33,共5页
Water Saving Irrigation
基金
国家自然科学基金(31171495)
河北省科技计划项目(15227003D)
河北省现代农业产业技术体系"棉花高产节水技术体系"
关键词
灌水量
水质
出苗率
微咸水
再生水
irrigation amount
water quality
seeding emergence
brackish water
reclaimed water
