中国农业大学学报2024，Vol.29Issue(2)：77-90,14.DOI:10.11841/j.issn.1007-4333.2024.02.08
基于养分平衡原理的温室番茄沼液替代氮肥适宜模式及评价
Suitable model and evaluation of nitrogen fertilizer replacement by greenhouse tomato digestate based on nutrient balance principle
摘要
Abstract
In order to explore the suitable mode of replacing nitrogen fertilizer with biogas slurry,tomato was used as the test material.According to the principle of crop nutrient balance,the nitrogen application rate of tomato planted in the experiment was 374.8 kg/hm2,and the appropriate model test and evaluation analysis of biogas slurry to replace nitrogen fertilizer were carried out based on this nitrogen application rate.The experiment included 6 treatments,which were pure biogas slurry treatment(CF1),pure nitrogen fertilizer treatment(CF2),biogas slurry instead of nitrogen fertilizer 50％(T1),35％(T2),25％(T3),and 15％(T4)treatment,respectively.To analyze the effect of biogas slurry replacing nitrogen fertilizer on tomato agronomic traits,yield and quality.And carry out Logistic curve analysis on its agronomic traits growth potential and maximum growth rate.Tomato soluble sugar,titratable acid,soluble solids,vitamin C,nitrate and water content were further selected as evaluation indicators.This study adopted the TOPSIS method,gray relational analysis method,symmetrical cross entropy multi-attribute ranking method and VIKOR method to evaluate multi-attribute decision-making,and then used the mean value method,fuzzy Borda method and Copeland method to evaluate the four single evaluation results.Based on above analysis,a comprehensive benefit evaluation system for tomato quality was constructed.The results showed that:The T3 treatment had the highest growth rate and optimal agronomic traits of tomato,the growth potential and maximum growth rate of the Logistic curve in descending order is T3＞T4＞T2＞T1,while the T2 treatment had the highest yield(4.72 kg/plant)and T3 is in the second highest(4.55 kg/plant);With the increase of the proportion of nitrogen fertilizer replaced by biogas slurry,the content of soluble sugar and soluble solids showed an increasing trend,the content of nitrate showed a downward trend,titratable acid,vitamin C and fruit water content showed a downward parabolic trend,and T2 treatment is the maximum value of parabola;There were differences in the results obtained by the four single evaluation methods,and the results of the three combination evaluation methods all yielded the highest combination evaluation scores for the T2 treatment(35％nitrogen fertilizer replaced by biogas).Despite the optimum performance of agronomic traits(plant height,stem thickness and cumulative mass of dry matter)and maximum growth rate of tomato in T3 treatment(25％replacement of nitrogen fertilizer by biogas).However,T2 treatment(replacement of 35％nitrogen fertilizer by biogas)resulted in the optimum tomato yield,quality and evaluation results.关键词
番茄/沼液/氮肥/养分平衡/品质/组合评价Key words
tomato/biogas slurry/nitrogen fertilizer/nutrient balance/quality/combination evaluation分类
农业科技引用本文复制引用
郑健,宿智鹏,刘俊彦,王燕..基于养分平衡原理的温室番茄沼液替代氮肥适宜模式及评价[J].中国农业大学学报,2024,29(2):77-90,14.基金项目
国家自然科学基金项目(51969012) （51969012）
甘肃省教育厅产业支撑计划项目(2021CYZC-27,2021CYZC-33) （2021CYZC-27,2021CYZC-33）
济南市水务科技项目(JNSWKJ202206) （JNSWKJ202206）
2023年高校教师创新基金项目(2023B-431) （2023B-431）
