Evaluating the Effects of Aquaculture Wastewater Irrigation with Fertilizer Reduction on Greenhouse Tomato Production,Economic Benefits and Soil Nitrogen Characteristics

作     者：Hang Guo Linxian Liao Zhenhao Zheng Junzeng Xu Qi Wei Peng Chen Kechun Wang 

作者机构：National Key Laboratory of Water Disaster PreventionHohai UniversityNanjing210098China College of Agricultural Science and EngineeringHohai UniversityNanjing210098China Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization Carbon Sequestration and Emission ReductionHohai UniversityNanjing210098China Agricultural Technology Extension Station of NingboNingboChina 

出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)

年 卷 期：2023年第92卷第12期

页      面：3291-3304页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：supported by the Ningbo Public Welfare Science and Technology Program (No.2022S097) the Fundamental Research Funds for the Central Universities (Nos.2019B17914,B210206006) 

主　　题：Aquaculture wastewater irrigation fertilizer reduction soil nitrogen residue tomato production 

摘      要：The utilization of aquaculture wastewater as irrigation is an effective way to recycle and reuse water and nitrogen fertilizer resources because it contains numerous ***,it is still unclear that the pattern of substituting aquaculture wastewater irrigation for fertilizer supplementing is conducive to improving the soil nitrogen status,fruit yield and water-fertilizer use efficiency for tomato *** this context,the experiment was intended to establish the appropriate irrigation regime of aquaculture wastewater in tomato production for freshwater replacement and fertilizer reduction to ensure good *** experiments were conducted with treatments as farmers accustomed to irrigation and fertilization used as control(CK),1.75 L aquaculture wastewater with base fertilizer(W1),2 L aquaculture wastewater with base fertilizer;and 2.25 L aquaculture wastewater with base fertilizer(W3).We examined the effects of aquaculture wastewater irrigation on soil nitrogen distribution,Nrelated hydrolases,tomato yield,and economic *** results showed that the control treatment had the highest N input,about 24.68%higher than the W3 treatment,while the yield was only about 7.81%higher than *** indicated that the overuse of chemical fertilizer was present in the current tomato *** the reduction of fertilizer in aquaculture wastewater irrigation caused a decrease in tomato production,this economic loss can be compensated by cost savings in the wastewater *** aquaculture wastewater treatments,the W3 treatment had the highest overall benefit,achieving 62.63%freshwater savings,37.50%fertilizer input reduction,and an economic return of approximately 19,466 Yuan per hectare higher than the ***,increasing the irrigation volume of aquaculture wastewater could provide more available nutrients to the soil,which were more prevalent in the form of organic *** lower soil nitrate reductase activities(NR)under aqu