摘要
为了探究减水和减施化肥对设施黑土菜田茄子产量和水分利用率的影响,本研究以茄子为研究对象,对比分析了常规施肥量和灌溉量、80%常规化肥量+正常灌溉量以及80%常规灌溉量+常规施肥量处理的茄子产量和水分利用率的效果。试验结果表明:与常规水肥处理相比,减施化肥处理显著降低了茄子果实、茎叶和根系干物质量(P <0. 05),降幅分别为5. 42%、15. 3%和8. 54%,但对茄子产量、耗水量和水分利用率均无显著影响(P> 0. 05)。减水处理的茄子果实和茎叶干物质量较常规水肥处理分别显著降低了6. 86%和18. 3%,茄子产量和耗水量分别显著降低了5. 17%和21. 8%,水分利用率显著增加了21. 6%(P <0. 05)。适当减少化肥的施用量对茄子产量和水分利用率均无显著影响(P> 0. 05);减少灌水量显著降低了茄子的产量,但提高了水分利用率(P <0. 05)。
To investigate the effects of reducing irrigation and chemical fertilizers on eggplant yield and water utilization efficiency （WUE） in a facility- vegetable field of black soil region, we compared and analyzed the effects of regular irrigation and chemical fertil- izers （CK）, 80% regular chemical fertilizers （80F） and 80% regular irrigation （80W） eggplant yield and WUE. The results showed that： compared to CK, the dry- matters of eggplant fruits, stem ＆ leaf and roots in 80F was significantly decreased by 5.42%, 15.3% and 8.54% respectively （P 〈0. 05） , while eggplant yield, water consumption and WUE were not significantly affected （P 〉0. 05） . Compared to CK, the dry- matters of eggplant fruits and stem ＆ leaf in 80W was significantly decreased by 6. 86% and 18.3% respectively, and eggplant yield and water consumption amount were significantly decreased as well by 5.17 % and 21.8% re- spectively, but WUE was significantly increased by 21.6% （ P 〈 0. 05 ） ; however, reducing chemical fertilizers moderately had no significant effects on eggplant yield and WUE （ P 〉 0. 05 ） . Reducing irrigation significantly decreased eggplant yield but increased WUE （P〈0.05） .
作者
张锦源
徐欣
陈一民
周珂
侯萌
曲红云
焦晓光
隋跃宇
ZHANG Jinyuan;XU Xin;CHEN Yimin;ZHOU Ke;HOU Meng;QU Hongyun;JIAO Xiaoguang;SUI Yueyu(Key Laboratory of Mollisols Agroeeology,Northeast Institute of Geography and Agroeeology,CAS,Harbin 150081,China;College of Agrieuhural Resourees and Environment,Heilongjiang University,Harbin 150080,China;Institute of Horticulture,Heilongjiang Academy of Agrieuhural Seienees,Harbin 150069,China;University of Chinese Academy of Sciences,Belting 100049,China)
出处
《土壤与作物》
2018年第4期374-379,共6页
Soils and Crops
基金
国家重点研发计划资助(2016YFD0800100)
关键词
设施黑土菜田
减水
减施化肥
茄子产量
水分利用率
facility vegetable field in black soil region
reducing irrigation
reducing chemical fertilizers
eggplant yield
water utilization efficiency
