植物营养与肥料学报2025，Vol.31Issue(2)：282-291,10.DOI:10.11674/zwyf.2024318
基于QUEFTS模型估算中国设施黄瓜养分吸收需求量
Estimation of nutrient uptake requirements of greenhouse cucumber production in China based on the QUEFTS model
摘要
Abstract
[Objectives]Fertilization in cucumber production is commonly characterized by high application rates and imbalances,significantly affecting cucumber yields and fertilizer use efficiency in China.Determining nutrient requirements is a prerequisite for establishing scientific and effective fertilization recommendations for cucumbers and serves as the foundation for precise fertilization,which is crucial for sustainable cucumber production in China.[Methods]We collected and summarized data from field experiments conducted by the International Plant Nutrition Institute(IPNI),the China National Knowledge Infrastructure(CNKI)database,and our research team in major cucumber-producing regions of China,using keywords such as"cucumber","cucumber+yield",and"cucumber+nutrient absorption".The QUEFTS model was applied to estimate optimal nutrient requirements for cucumbers at different target yields.Field experiments were conducted in Tianjin,Beijing,Hebei,and Jiangsu to validate the model-derived nutrient requirements for cucumbers.[Results]The average cucumber yield reached 86.2 t/hm²but varied widely,ranging from 2.9 to 339.5 t/hm².The average N,P,and K absorption by cucumber fruits were 175.6,44.1,and 236.6 kg/hm²,respectively,with ranges of 44.8-459.0,16.0-119.6,and 34.7-554.8 kg/hm²,respectively.The average total N,P,and K absorption by the aboveground parts were 260.6,64.7,and 326.9 kg/hm²,respectively,with ranges of 52.0-525.3,11.2-146.4,and 53.0-632.4 kg/hm²,respectively.Differences in climate,soil conditions,cucumber varieties,irrigation amounts,and nutrient management practices across different planting areas contributed to the high variation in yields and nutrient absorption.By excluding the top and bottom 2.5%of nutrient internal efficiency values,we obtained the maximum dilution boundary(d)and maximum accumulation boundary(a)parameters.Using the QUEFTS model to simulate optimal nutrient requirements for cucumbers at different target yields,we found that for every 1000 kg of cucumber produced,the aboveground nutrient requirements were 2.25 kg of N,0.48 kg of P,and 2.84 kg of K,with corresponding nutrient internal efficiencies of 444.9,2074.3,and 352.1 kg/kg for N,P,and K,respectively.Field validation experiments showed that the simulated and measured nutrient absorption values for N,P,and K were consistent,with fitting index(d)values of 0.996,0.978,and 0.997,respectively.[Conclusions]The QUEFTS model was used to simulate optimal nutrient requirements for cucumbers at different target yields,establishing a quantitative relationship between cucumber yield and nutrient absorption in China.This provides nutrient requirement parameters for the establishment of recommended fertilization methods for cucumbers in China.关键词
黄瓜/养分吸收量/QUEFTS模型/养分内在效率/最大稀释边界/最大累积边界/目标产量Key words
cucumber/nutrient uptake/QUEFTS model/nutrient internal efficiency/maximum dilution boundary parameter/maximum accumulation boundary parameter/target yield引用本文复制引用
宋蕾,徐新朋,潘昭隆,陈延玲,何萍,周卫..基于QUEFTS模型估算中国设施黄瓜养分吸收需求量[J].植物营养与肥料学报,2025,31(2):282-291,10.基金项目
国家自然科学基金重点项目(32230093) （32230093）
农田智慧施肥项目(20221805). （20221805）
