摘要
以武山青笋为试材,以当地常规施肥为对照,研究缓释肥部分替代普通化肥并配施生物有机肥对莴笋干物质积累、养分利用及土壤养分、土壤酶的影响。结果表明,与常规施肥相比,使用缓释氮肥、普通化学磷肥和钾肥并配施400 kg·667 m^(-2)生物有机肥处理,可显著提升莴笋养分吸收利用率及土壤肥力;莴笋根、茎、叶干物质积累量分别比对照提高33.2%、11.6%、23.1%,莴笋植株氮、磷、钾素总积累量分别比对照提高59.96%、54.48%、22.23%;氮、磷、钾肥利用率分别比对照提高165.44%、581.57%、185.20%,同时,该处理可以显著提高土壤全氮、全磷、全钾、有机质以及速效养分含量,提高土壤过氧化氢酶、蔗糖酶、脲酶、碱性磷酸酶活性。综上所述,缓释肥替代普通化肥并配施400 kg·667 m^(-2)生物有机肥,具有提升莴笋养分吸收利用率及土壤肥力的作用。
The effects of slow-release fertilizer on dry matter accumulation,nutrient utilization,soil nutrients and soil enzymes activity of asparagus lettuce were studied.The results showed that the application of slow release nitrogen fertilizer,common chemical phosphorus fertilizer and potassium fertilizer combined with 400 kg·667 m^(-2)bio-organic fertilizer could significantly improve the nutrient uptake and utilization and soil fertility of asparagus lettuce compared with conventional fertilization.The dry matter accumulation of root,stem and leaf increased by 33.2%,11.6%and 23.1%respectively,the total accumulation of N,P and K in lettuce plants increased 59.96%,54.48%and 22.23%compared with the control,respectively,,the utilization rate of N、P、K increased by 165.44%,581.57%and 185.20%respectively,at the same time can significantly increase the soil total nitrogen,total phosphorus,total potassium,organic matter and available nutrient content,increase soil catalase,sucrase,urease and alkaline phosphatase activity.
作者
苟亚妮
何志学
马宁
黎小斌
张婧
张潇丹
颉建明
GOU Yani;HE Zhixue;MA Ning;LI Xiaobin;ZHANG Jing;ZHANG Xiaodan;XIE Jianming(Horticulture College of Gansu Agriculture University,Lanzhou 730070,Gansu,China;Wushan Vegetable Research Institute,Tianshui 741300,Gansu,China)
出处
《中国瓜菜》
CAS
北大核心
2021年第11期94-99,共6页
China Cucurbits And Vegetables
基金
国家重点研发计划(2016YFD0201005)
甘肃省引导科技创新发展专项资金(2018ZX02)
甘肃省瓜菜产业技术体系专项资金(GARS-GC-1)。
关键词
莴笋
缓释肥
生物有机肥
养分
土壤肥力
Asparagus lettuce
Slow-release fertilizer
Biological organic fertilizer
Nutrient
The soil fertility
作者简介
苟亚妮,女,在读硕士研究生,主要从事设施蔬菜栽培生理与生长调控研究。E-mail:2467008812@qq.com;通信作者:颉建明,男,教授,主要从事蔬菜学和设施农业研究。E-mail:xiejianming@gsau.edu.cn。
