欢迎访问《中国农学通报》,

中国农学通报 ›› 2022, Vol. 38 ›› Issue (3): 30-36.doi: 10.11924/j.issn.1000-6850.casb2021-0190

所属专题: 生物技术 园艺 农业生态

• 林学·园艺·园林 • 上一篇    下一篇

番茄滴灌水氮耦合效应与模式研究

罗慧1,2(), 李伏生1()   

  1. 1广西大学农学院,南宁 530005
    2广西大学农牧产业发展研究院,南宁 530005
  • 收稿日期:2021-02-26 修回日期:2021-05-28 出版日期:2022-01-25 发布日期:2022-02-25
  • 通讯作者: 李伏生
  • 作者简介:罗慧,女,1982年出生,广西田阳人,实验师,博士,主要从事植物营养与水肥利用理论与技术研究。通信地址:530005 广西省南宁市广西大学,Tel:0771-3235723,E-mail:hui- qingtian@163.com
  • 基金资助:
    广西科技计划—基地和人才专项“喀斯特地区节水农业新技术院士工作站能力建设”(AD17195060)

Water and Nitrogen Coupling Effects and Model Under Tomato Drip Irrigation

LUO Hui1,2(), LI Fusheng1()   

  1. 1College of Agriculture, Guangxi University, Nanning 530005
    2Industrial Development Institute of Agri-animal, Guangxi University, Nanning 530005
  • Received:2021-02-26 Revised:2021-05-28 Online:2022-01-25 Published:2022-02-25
  • Contact: LI Fusheng

摘要:

为探明番茄高产优质高效生产的灌溉施肥制度和最优水氮耦合模式,开展了不同滴灌水氮耦合方式对番茄产量、品质和水氮利用的影响的田间试验。结果表明:与F0W0(土施100% N肥基肥,降雨+补充滴灌灌水)相比,F2W2(交替滴灌方式施用100% N肥和80%常规灌水量)、F3W2(土施40% N肥基肥-交替滴灌方式追施60% N肥和80%常规灌水量)、F4W2(固定滴灌方式施用100% N肥和80%常规灌水量)和F5W2(土施40% N肥基肥-固定滴灌方式追施60% N肥和80%常规灌水量)分别提高产量、水分利用效率和氮肥偏生产力;F2W2处理Vc、水溶性糖含量和糖酸比分别提高42.5%、25.5%和131.9%;由主成分分析评价可知F2W2为番茄综合品质最优处理;用TOPSIS法评价番茄产量、品质和水氮利用可得F2W2为综合效益最优处理。因此,交替滴灌方式施用100% N肥和80%常规灌水量处理是最优水氮耦合模式。

关键词: 水氮耦合, 交替滴灌, 产量, 品质, 水氮利用, 番茄

Abstract:

To explore the irrigation and fertilization system and the optimal coupling mode of water and nitrogen (N) for high-yield, high-quality and high-efficiency of tomato production under drip irrigation, a field experiment was conducted to investigate the effects of different water and N coupling modes on tomato yield, quality, and water and N use under drip irrigation. The results showed that compared with F0W0 (100% N fertilizer applied to soil as basal fertilizer and rainfall + supplementary drip irrigation), F2W2 (100% N fertilizer via alternate drip irrigation and 80% conventional irrigation amount), F3W2 (40% N fertilizer applied to soil as basal fertilizer, 60% N fertilizer via alternate drip irrigation as topdressing and 80% conventional irrigation amount), F4W2 (100% N fertilizer via fixed drip irrigation and 80% conventional irrigation amount) and F5W2 (40% N fertilizer applied to soil as basal fertilizer, 60% N fertilizer via fixed drip irrigation as topdressing and 80% conventional irrigation amount) increased tomato yield, water use efficiency and partial productivity of N fertilizer. F2W2 enhanced vitamin C, soluble sugar and sugar/acid ratio of tomato by 42.5%, 25.5% and 131.9%, respectively. F2W2 had the optimal comprehensive quality of tomato evaluated by principal component analysis, and the optimal comprehensive benefit of tomato yield, quality, and water and N use evaluated by TOPSIS. Therefore, 100% N fertilizer via alternate drip irrigation and 80% conventional irrigation amount (F2W2) is the optimal coupling mode of water and N for tomato under drip irrigation.

Key words: water and nitrogen coupling, alternate drip irrigation, yield, quality, water and nitrogen use, tomato

中图分类号: