中国农业科学 ›› 2025, Vol. 58 ›› Issue (14): 2869-2884.doi: 10.3864/j.issn.0578-1752.2025.14.012

• 园艺 • 上一篇    下一篇

响应曲面法优化水肥药耦合对辣椒生长、光合特性及根腐病的影响

徐佳鑫1,2,3(), 华楠4, 王永强5, 徐浩2, 刘震2, 赵小锐2, 李悦2, 陈启蔚2, 叶林1,2,3,*()   

  1. 1 宁夏大学土木与水利工程学院,银川 750021
    2 宁夏大学葡萄酒与园艺学院,银川 750021
    3 旱区现代农业水资源高效利用教育部工程研究中心,银川 750021
    4 银川市兴庆区掌政镇农业综合服务中心,银川 750021
    5 水发浩海集团有限公司,银川 750021
  • 收稿日期:2025-03-11 接受日期:2025-04-21 出版日期:2025-07-17 发布日期:2025-07-17
  • 通信作者:
    叶林,E-mail:
  • 联系方式: 徐佳鑫,E-mail:13244683088@163.com。
  • 基金资助:
    国家重点研发计划(2021YFD1600300); 宁夏回族自治区重点研发计划(2023BCF01042)

Response Surface Methodology Optimization of Water, Fertilizer, and Pesticide Coupling on Chili Pepper Growth, Photosynthetic Characteristics, and Root Rot

XU JiaXin1,2,3(), HUA Nan4, WANG YongQiang5, XU Hao2, LIU Zhen2, ZHAO XiaoRui2, LI Yue2, CHEN QiWei2, YE Lin1,2,3,*()   

  1. 1 College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021
    2 College of Wine and Horticulture, Ningxia University, Yinchuan 750021
    3 Engineering Research Center of Efficient Utilization of Water Resources in Modern Agriculture in Arid Areas, Ministry of Education, Yinchuan 750021
    4 Agricultural Service Center of Zhangzheng Town, Xingqing District, Yinchuan City, Yinchuan 750021
    5 Shuifa Haohai Group Co., Ltd., Yinchuan 750021
  • Received:2025-03-11 Accepted:2025-04-21 Published:2025-07-17 Online:2025-07-17

摘要:

【目的】针对目前日光温室辣椒生产中存在的不合理水肥施用导致的产量下降及根腐病频发等问题,探讨合理水肥药配施对辣椒产量提升及根腐病防治效果的影响,为温室辣椒的高产优质栽培技术筛选出科学合理的水肥药管理模式。【方法】以螺丝椒‘华美105’为试验材料,设计灌溉量(2 423、3 230、4 037 m3·hm-2)、施肥量(330、495、660 kg·hm-2)和施药量(300、450、600 L·hm-2)各3个水平。肥为高钾肥(N-P-K:12-6-40),药剂为氯溴异氰尿酸、春雷霉素、甲霜·恶霉灵等混合药剂。采用3因素3水平二次回归正交试验方法,分析不同水、肥、药配比对辣椒生长、光合特性变化及根腐病发生的影响。【结果】灌水量和施药量、施肥量和施药量的交互作用对生长综合指数和光合性能综合指数影响显著(P<0.05),其中灌水量和施药量的交互作用对生长综合指数影响极显著(P<0.01);灌水量和施药量的交互作用对水肥利用效率影响显著(P<0.05),灌水量和施肥量、施肥量和施药量的交互作用对水肥利用效率影响不显著;施肥量和施药量的交互作用对根腐病病情指数影响显著(P<0.05),灌水量和施肥量、灌水量和施药量的交互作用对根腐病病情指数影响不显著;灌水量和施药量、施肥量和施药量的交互作用对产量影响显著(P<0.05),灌水量和施肥量的交互作用对产量影响不显著。【结论】利用响应回归模型对产量和水肥利用效率进行多目标优化,灌水量、施肥量和施药量的最优组合为灌水量3 213 m3·hm-2、施肥量493 kg·hm-2、施药量449 L·hm-2。该组合可有效提高辣椒生长指标与光合参数,同时显著降低辣椒根腐病病情指数并提高产量和水肥利用效率。因此,该水肥药管理模式可为辣椒的科学管理与高效生产提供重要理论依据和参考。

关键词: 辣椒, 水肥药耦合, 光合特性, 生长, 根腐病, 响应曲面法

Abstract:

【Objective】Aiming at the problems of yield decline and frequent root rot caused by unreasonable application of water and fertilizer in chili pepper production in solar greenhouse, the effects of reasonable application of water and fertilizer on yield increase and root rot control effect of chili pepper were discussed, and a scientific and reasonable management mode of water and fertilizer was screened out for high yield and high quality cultivation techniques of chili pepper in greenhouse.【Method】The experiment was conducted using the chili pepper variety ‘Huamei 105’. Three levels of irrigation amount (2 423, 3 230, 4 037 m3·hm-2), fertilizer application rate (330, 495, 660 kg·hm-2), and pesticide application rate (300, 450, 600 L·hm-2) were designed. Fertilizer was a high-potassium mix (N-P-K: 12-6-40), and the pesticide combination included chlorobromoisocyanuric acid, cymoxanil, and metalaxyl. A three-factor, three-level quadratic regression orthogonal experiment was conducted to analyze the effects of different water, fertilizer, and pesticide combinations on chili pepper growth, photosynthetic characteristics, and root rot occurrence.【Result】The interactions between irrigation amount and pesticide application rate, fertilizer application rate and pesticide application rate significantly impacted the growth comprehensive index and photosynthetic performance comprehensive index (P<0.05), and the interaction between irrigation amount and pesticide application rate had extremely significant effects on the growth comprehensive index (P<0.01). The interaction between irrigation amount and pesticide application rate had a significant effect on water and fertilizer use efficiency (P<0.05), while the interactions between irrigation amount and fertilizer application rate, fertilizer application rate and pesticide application rate had no significant effect on water and fertilizer use efficiency. The interaction between fertilizer application rate and pesticide application rate had a significant effect on the disease index of root rot (P<0.05), while the interactions between irrigation amount and fertilizer application rate, irrigation amount and pesticide application rate had no significant effect on the disease index of root rot. The interactions between irrigation amount and pesticide application rate, fertilizer application rate and pesticide application rate had significant effects on yield (P<0.05), while the interaction between irrigation amount and fertilizer application rate had no significant effect on yield.【Conclusion】The response regression model was used to optimize the yield and water and fertilizer use efficiency. The optimal combination of irrigation, fertilizer and pesticide application is irrigation amount 3 213 m3·hm-2, fertilizer application rate 493 kg·hm-2 and pesticide application rate 449 L·hm-2. This combination can effectively improve the growth index and photosynthetic parameters of chili pepper, and significantly reduce the disease index of root rot and improve the yield and water and fertilizer use efficiency. Therefore, this management mode of water, fertilizer and pesticide can provide important theoretical basis and reference for the scientific management and efficient production of chili pepper.

Key words: chili pepper (Capsicum annuum), water, fertilizer and pesticide coupling, photosynthetic characteristics, growth, root rot, response surface methodology