糖厂滤泥炭基肥对柑橘土壤理化性质及叶片养分含量的影响  

Effects of sugar mill filter peat-based fertilizer on soil physicochemical properties and leaf nutrient content of citrus

作　　者：胡春凤 黄世哲 刘春荣 张存柒 李素丽[1] 李志刚[1] HU Chun-feng;HUANG Shi-zhe;LIU Chun-rong;ZHANG Cun-qi;LI Su-li;LI Zhi-gang(Guangxi University College of Agriculture,Nanning Guangxi 530000;Guangxi Nanning Liangqing District Liangqing Town Agricultural Service Center,Nanning Guangxi 530000)

机构地区：[1]广西大学农学院,广西南宁530000 [2]广西南宁市良庆区良庆镇农业服务中心,广西南宁530000

出　　处：《中国土壤与肥料》2025年第3期147-156,共10页Soil and Fertilizer Sciences in China

基　　金：南宁市科技计划项目(20222045)。

摘　　要：糖厂滤泥的处置是糖厂废弃资源再利用难题和环保难题,利用糖厂滤泥可制作滤泥炭基肥。但糖厂滤泥炭基肥在柑橘园的施用效果目前还不明确。采用大田试验,以金香柑为研究对象,设置不同用量化肥(F1、F2、F3)和炭基肥(BF1、BF2、BF3)、常规施肥(N),研究炭基肥对柑橘土壤养分状况、酶活性及养分吸收等指标的影响。研究结果表明,相同的化肥水平下,炭基肥处理提高了土壤含水率、pH、有机质、全氮、全磷、全钾、碱解氮、有效磷和速效钾含量,增幅分别为3.56%~15.45%、8.11%~11.06%、9.28%~18.13%、9.31%~18.59%、38.88%~54.64%、9.48%~34.35%、24.08%~27.69%、24.02%~42.07%和21.87%~31.23%;炭基肥处理土壤脲酶活性、蔗糖酶活性和酸性磷酸酶活性分别比化肥处理提高了7.22%~23.99%、22.09%~30.08%、5.72%~11.23%;炭基肥处理提高了叶片全氮、全磷和全钾的含量,增幅分别为31.83%~42.95%、10.43%~37.13%、12.28%~17.22%。综上所述,施用糖厂滤泥炭基肥对提高土壤养分具有积极的作用,可提高叶片养分含量,综合炭基肥对土壤理化性质以及叶片养分含量的效果,减施30%化肥的炭基肥效果最佳。Disposal of filter peat was a difficult problem of reuse of waste resources in sugar mills and environmental protection,and filter peat could be used to make filter peat-based fertilizer.However,the application effect of sugar factory filter peat-based fertilizer in citrus orchards was still unclear.In this experiment,a field experiment was conducted with golden citrus as the research object,different dosages of chemical fertilizers(F1,F2,F3)and peat-based fertilizers(BF1,BF2,BF3),and routinely applied fertilizers(N)were set up to study the effects of peat-based fertilizers on soil nutrient status,enzyme activity,and nutrient uptake of citrus and other indexes.The results showed that at the same fertilizer level,BF treatments increased soil water content,pH,organic matter,total nitrogen,total phosphorus,total potassium,alkali-hydrolyzale nitrogen,available phosphorus and available potassium by 3.56%-15.45%,8.11%-11.06%,9.28%-18.13%,9.31%-18.59%,38.88%-54.64%,9.48%-34.35%,24.08%-27.69%,24.02%-42.07%,and 21.87%-31.23%,respectively;Soil urease activity,sucrase activity,and acid phosphatase activity were increased by 7.22%-23.99%,22.09%-30.08%,and 5.72%-11.23%,respectively;The BF treatment increased leaf total nitrogen,total phosphorus and total potassium contents by 31.83%-42.95%,10.43%-37.13%and 12.28%-17.22%,respectively.In conclusion,the application of sugar mill filter peat-based fertilizer had a positive effect on improving soil nutrients and could increase leaf nutrient content.

关 键 词：糖厂滤泥炭基肥 理化性质 酶活性 养分吸收 

分 类 号：S666[农业科学—果树学]