牡蛎壳粉与有机肥配施对浙南山区水稻土酸度特征的影响  

Effects of Co-application of Oyster Shell Powder and Organic Fertilizer on Acidity Characteristics of Paddy Soil in Mountainous Areas of Southern Zhejiang

作　　者：张宁 丁枫华[2] 袁国印 吴东涛 赵承森 童城威 ZHANG Ning;DING Fenghua;YUAN Guoyin;WU Dongtao;ZHAO Chengsen;TONG Chengwei(College of Environment and Resources,Zhejiang Agriculture and Forestry University,Hangzhou 311300,Zhejiang;School of Ecology,Lishui University,Lishui 323000,Zhejiang;Lishui General Station of Soil Fertilizer,Plant Protection and Energy,Lishui 323000,Zhejiang)

机构地区：[1]浙江农林大学环境与资源学院,浙江杭州311300 [2]丽水学院生态学院,浙江丽水323000 [3]丽水市土肥植保能源总站,浙江丽水323000

出　　处：《丽水学院学报》2025年第2期38-47,共10页Journal of Lishui University

基　　金：丽水市科技重点研发计划“新垦耕地地力提升关键技术研发与集成应用”(2022ZDYF16);丽水市公益性资金资助项目“‘非粮化’政治茭白改粮田土壤退化修复综合技术研究与示范”(2022GYX200)。

摘　　要：为明确牡蛎壳粉与有机肥配施对浙南山区水稻土壤的酸度特征和水稻产量的影响,采用田间小区试验,探究施用常规底肥(CK)、牡蛎壳粉+常规底肥(OS)、有机肥(OF)、牡蛎壳粉+有机肥(OFS)处理对水稻土酸度性质、交换性能、土壤酸碱缓冲容量、养分含量和产量的影响,以及各指标之间的相关性。结果表明:相较于CK,OFS处理对土壤pH的改良最优,提高了0.61个单位。各处理均显著降低了土壤交换性酸的含量,OFS处理降幅达50.1%。同时,OFS处理显著提高水稻土壤的交换性盐基离子的总量、土壤酸碱缓冲能力。相关分析表明,酸碱缓冲容量与pH、有机质、碱解氮、有效磷、交换性盐基离子的总量极显著正相关,和交换性酸、交换性H+、交换性Al3+极显著负相关。研究结果表明,牡蛎壳粉与有机肥配施较单独施用能有效改善浙南山区水稻土壤酸化问题,进而增加3%~5%水稻产量。To determine the effects of co-application of oyster shell powder and organic fertilizer on acidity characteristics and rice yield of paddy soil in mountainous ares of southern Zhejiang,this study conducted a fieldplot experiment to examine the impacts of conventional base fertilizer (CK),oyster shell powder + conventionalbase fertilizer (OS),organic fertilizer (OF),and oyster shell powder + organic fertilizer (OFS) on aciditycharacteristics of paddy soil,exchange properties,acid-base buffering capacity of soil,nutrient content,andyield,as well as the correlations among these indicators. The results showed that compared with CK,OFSprovided the best improvement of soil pH,increasing it by 0.61 units. All treatments significantly reduced thecontent of exchangeable acids of soil,with OFS achieving a reduction of 50.1%. Meanwhile,OFS significantlyincreased the total amount of exchangeable base ions and the acid-base buffering capacity of soil. Correlationanalysis indicated that acid-base buffering capacity was highly positively correlated with pH,organic matter,alkali-hydrolyzable nitrogen,available phosphorus,and the total amount of exchangeable bases ions,andhighly negatively correlated with exchangeable acids,exchangeable hydrogen ions,and exchangeable aluminumions. The study results indicate that co-application of oyster shell powder and organic fertilizer can effectivelyalleviate soil acidification of paddy soil in mountainous areas of southern Zhejiang,thereby increasing rice yieldby 3%~5%.

关 键 词：牡蛎壳粉 有机肥 水稻土 酸度特征 产量 

分 类 号：S156[农业科学—土壤学]