Yixuan CHEN , Zhonghua WEN , Jun MENG , Zunqi LIU , Jialong WEI , Xiyu LIU , Ziyi GE , Wanning DAI , Li LIN , Wenfu CHEN
{"title":"施用生物炭对水稻土中不规则根噬菌体、水稻幼苗和磷循环的积极影响","authors":"Yixuan CHEN , Zhonghua WEN , Jun MENG , Zunqi LIU , Jialong WEI , Xiyu LIU , Ziyi GE , Wanning DAI , Li LIN , Wenfu CHEN","doi":"10.1016/j.pedsph.2023.06.008","DOIUrl":null,"url":null,"abstract":"<div><p>Phosphorus (P) is an essential element for plant growth but is often limiting in ecosystems; therefore, improving the P fertilizer use efficiency is important. Biochar and arbuscular mycorrhizal fungi (AMF) may enhance P cycling in paddy soils that contain high content of total P but low content of available P (AP). In this study, the effects of biochar addition and <em>Rhizophagus irregularis</em> inoculation on the organic and inorganic P contents and phosphatase activities in paddy soils, rice seedling growth, and AMF colonization were investigated. Compared with no biochar addition, biochar addition enhanced the percentage of spore germination at day 7, hyphal length, most probable number, and mycorrhizal colonization rate of <em>R. irregularis</em> by 32%, 662%, 70%, and 28% on average, respectively. Biochar and <em>R. irregularis</em> altered soil P cycling and availability. Biochar and <em>R. irregularis</em>, either individually or in combination, increased soil AP content by 2%--48%. Rice seedlings treated with biochar and <em>R. irregularis</em> produced greater biomass, improved root morphology, and increased nutrient uptake compared with those of the control without biochar and <em>R. irregularis</em>. The results suggest that combined application of biochar and <em>R. irregularis</em> is beneficial to rice cultivation in paddy soils with high content of total P but low content of AP.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 361-373"},"PeriodicalIF":5.2000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Positive effects of biochar application and Rhizophagus irregularis inoculation on mycorrhizal colonization, rice seedlings and phosphorus cycling in paddy soils\",\"authors\":\"Yixuan CHEN , Zhonghua WEN , Jun MENG , Zunqi LIU , Jialong WEI , Xiyu LIU , Ziyi GE , Wanning DAI , Li LIN , Wenfu CHEN\",\"doi\":\"10.1016/j.pedsph.2023.06.008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Phosphorus (P) is an essential element for plant growth but is often limiting in ecosystems; therefore, improving the P fertilizer use efficiency is important. Biochar and arbuscular mycorrhizal fungi (AMF) may enhance P cycling in paddy soils that contain high content of total P but low content of available P (AP). In this study, the effects of biochar addition and <em>Rhizophagus irregularis</em> inoculation on the organic and inorganic P contents and phosphatase activities in paddy soils, rice seedling growth, and AMF colonization were investigated. Compared with no biochar addition, biochar addition enhanced the percentage of spore germination at day 7, hyphal length, most probable number, and mycorrhizal colonization rate of <em>R. irregularis</em> by 32%, 662%, 70%, and 28% on average, respectively. Biochar and <em>R. irregularis</em> altered soil P cycling and availability. Biochar and <em>R. irregularis</em>, either individually or in combination, increased soil AP content by 2%--48%. Rice seedlings treated with biochar and <em>R. irregularis</em> produced greater biomass, improved root morphology, and increased nutrient uptake compared with those of the control without biochar and <em>R. irregularis</em>. The results suggest that combined application of biochar and <em>R. irregularis</em> is beneficial to rice cultivation in paddy soils with high content of total P but low content of AP.</p></div>\",\"PeriodicalId\":49709,\"journal\":{\"name\":\"Pedosphere\",\"volume\":\"34 2\",\"pages\":\"Pages 361-373\"},\"PeriodicalIF\":5.2000,\"publicationDate\":\"2024-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Pedosphere\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S100201602300070X\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"SOIL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pedosphere","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S100201602300070X","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
Positive effects of biochar application and Rhizophagus irregularis inoculation on mycorrhizal colonization, rice seedlings and phosphorus cycling in paddy soils
Phosphorus (P) is an essential element for plant growth but is often limiting in ecosystems; therefore, improving the P fertilizer use efficiency is important. Biochar and arbuscular mycorrhizal fungi (AMF) may enhance P cycling in paddy soils that contain high content of total P but low content of available P (AP). In this study, the effects of biochar addition and Rhizophagus irregularis inoculation on the organic and inorganic P contents and phosphatase activities in paddy soils, rice seedling growth, and AMF colonization were investigated. Compared with no biochar addition, biochar addition enhanced the percentage of spore germination at day 7, hyphal length, most probable number, and mycorrhizal colonization rate of R. irregularis by 32%, 662%, 70%, and 28% on average, respectively. Biochar and R. irregularis altered soil P cycling and availability. Biochar and R. irregularis, either individually or in combination, increased soil AP content by 2%--48%. Rice seedlings treated with biochar and R. irregularis produced greater biomass, improved root morphology, and increased nutrient uptake compared with those of the control without biochar and R. irregularis. The results suggest that combined application of biochar and R. irregularis is beneficial to rice cultivation in paddy soils with high content of total P but low content of AP.
期刊介绍:
PEDOSPHERE—a peer-reviewed international journal published bimonthly in English—welcomes submissions from scientists around the world under a broad scope of topics relevant to timely, high quality original research findings, especially up-to-date achievements and advances in the entire field of soil science studies dealing with environmental science, ecology, agriculture, bioscience, geoscience, forestry, etc. It publishes mainly original research articles as well as some reviews, mini reviews, short communications and special issues.