Sugarcane bagasse amendment mitigates nutrient leaching from a mineral soil under tropical conditions

作     者：Nan XU Jehangir H.BHADHA Abul RABBANY Stewart SWANSON James MMCCRAY Yuncong LI Sarah LSTRAUSS Rao MYLAVARAPU Nan XU;Jehangir H.BHADHA;Abul RABBANY;Stewart SWANSON;James M.MCCRAY;Yuncong LI;Sarah L.STRAUSS;Rao MYLAVARAPU

作者机构：Horticultural Sciences DepartmentUniversity of FloridaGainesville FL 32611(USA) Everglades Research and Education CenterUniversity of FloridaBelle Glade FL 33430(USA) Department of SoilWaterand Ecosystem SciencesUniversity of FloridaGainesville FL 32611(USA) Institute of Food and Agricultural Sciences(IFAS)ExtensionUniversity of FloridaLaBelle FL 33935(USA) Agronomy DepartmentUniversity of FloridaBelle Glade FL 33430(USA) Department of SoilWaterand Ecosystem SciencesUniversity of FloridaHomestead FL 33031(USA) Department of SoilWaterand Ecosystem SciencesUniversity of FloridaImmokalee FL 34142(USA) 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2022年第32卷第6期

页      面：876-883页

核心收录：

学科分类：082802[工学-农业水土工程] 08[工学] 0828[工学-农业工程] 

基　　金：supported by the United States Sugar Corporation(No.PRO00015244) United States Department of Agriculture(USDA)Hatch Project(No.FLAERC-006097) 

主　　题：nutrient leaching potential nutrient loss pore volume sandy soil soil amendment soil column sugarcane by-product 

摘      要：Large quantities of organic by-products are generated by the sugarcane industry during sugar extraction *** by-products may be used as soil amendments to improve soil quality,as nutrient leaching is common in mineral soils of Florida in USA due to their sandy texture and frequent rain events.A soil column study was designed to evaluate the effects of bagasse application at 85 t ha^(-1) of fresh bagasse,170 t ha^(-1) of fresh bagasse,and 170 t ha^(-1) of fresh bagasse+nitrogen(N)on the leaching potential of carbon(C),N,phosphorus(P),and potassium(K).Bagasse was incorporated within the topsoil(0-15 cm)in outdoor soil columns exposed to natural conditions,with periodical irrigation during the *** approximately 57 weeks,the distributions of C,N,P,and K were evaluated at three soil depths(i.e.,0-15,15-30,and 30-53 cm)within the soil *** organic C(TOC),N,and P in leachates decreased significantly from the soils amended with bagasse compared with the control with no bagasse and no *** on K content changes in the columns,bagasse could also be utilized as a potential source of K for ***,application of bagasse as a soil amendment might be an effective way to sustainably reutilize organic by-products while reducing concerns regarding major nutrients entering groundwater *** results of this study could assist in developing nutrient management plans of using sugarcane bagasse as a potential soil amendment in mineral soils.