摘要
以油葵"康地562"为材料,采用单因子随机区组试验方法,在内蒙古阿拉善左旗巴彦浩特镇希尼套海嘎查村进行了膜下滴灌灌溉定额对油葵光合生理特性和水分生产效率的影响试验,定期测定了土壤含水率和作物光合生理指标。结果表明,现蕾期油葵的光合速率、蒸腾速率、气孔导度日变化均呈"凸抛物线"规律;胞间CO2摩尔分数日变化呈"凹抛物线"规律。同一灌溉定额条件下,采用先进的滴灌技术的日光合速率、日蒸腾速率和日气孔导度等指标均比畦灌技术较高,且产量提高了19.17%。试验条件下,膜下滴灌油葵产量随灌溉定额的增大而提高。
In Xinitaohaigacha village,Bayanhaote town,AlashanZuoqi of Inner Mongolia,a field experiment was conducted to investigate the effects of irrigation quota under mulched drip irrigation on photosynthetic characteristics of oil sunflower（Kangdi 562）,and soil moisture content and crop photosynthetic physiological index were measured periodically.The results showed that diurnal photosynthetic rate,diurnal transpiration rate and diurnal stomatal conductance of oil sunflower all changed with＂Convex curve＂and diurnal concentration of carbon dioxide changed with＂Concave parabola＂curve.At the same irrigation quota,the daily photosynthetic rate,the daily transpiration rate and the daily stomatal conductance using advanced drip irrigation technology were higher than those using border irrigation,and yield was improved by19.17%.Under this experiment conditions,the yield of oil sunflower increased with the increase of irrigation quota under mulched drip irrigation.
出处
《灌溉排水学报》
CSCD
北大核心
2016年第3期56-60,共5页
Journal of Irrigation and Drainage
基金
阿拉善SEE生态协会项目(2013-01)
教育部"长江学者和创新团队发展计划"创新团队项目(IRT1067)
关键词
干旱地区
油葵
膜下滴灌
光合作用
水分生产效率
arid area
oil sunflower
drip irrigation under mulch
photosynthetic characteristics
water production efficiency
