Abstract
An innovative method was used to treat rice straw based on a mixed dilute acid treatment followed by neutralization with ammonia water. This treatment decreased the Si content of the rice straw, thus improving its degradation by soil microorganisms. The plant-available N of soil was greatly improved after the application of the treated rice straw with urea. Soil microbial biomass N was about 50 mg kg−1 in the soil amended with the treated rice straw and urea but only 40 mg kg−1 in the soil amended with untreated rice straw and urea. Better synchronization of N supply with the plant requirement for N uptake was obtained when treated rice straw was applied with urea. Recovery of urea-N was 61% when soil was amended with treated rice straw and urea, whereas it was only 46% in soil amended with untreated rice straw and urea, and only 30% in soil treated with urea alone.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bremner JM (1996) Nitrogen—Total. In: Bigham JM (ed) Methods of soil analysis. Part 3. Chemical methods. Soil Science Society of America, Madison, Wis., pp 1085–1108
Chu GX, Shen QR, Cao JL (2004) N2 fixation and N transfer from peanut to rice cultivated in aerobic soil in an intercropping system and its effects on soil N fertility. Plant Soil 263(1–2):17–27
Leita L, Nobili M, De Mondini C, Muhlbachova G, Marchiol L, Bragto G, Contin M (1999) Influence of inorganic and organic fertilization on soil microbial biomass, metabolic quotient and heavy metal bioavailability. Biol Fertil Soils 28:371–376
Nelson DW, Sommers LE (1996) Total carbon, organic carbon, and organic matter. In: Bigham JM (ed) Methods of soil analysis. Part 3. Chemical methods. Soil Science Society of America, Madison, Wis., pp 961–1010
Shen QR, Shen ZG, Shi RH (1992) The characteristics of mineralization of N in organic manure and its relation to chemical composition of organic manure. J Nanjing Agric Univ 15:59–64
Shen QR, Xu SM, Shi RH (1993) Effect of incorporation of wheat straw and urea into soil on biomes N and N-supplying characteristics of paddy soil. Pedosphere 3:201–206
Shen QR, Yu L, Liu ZP, Mao ZS (1994) Effects of combining application of organic and inorganic N fertilizers on biomass N and N-supplying characteristics of coastal saline soil. Acta Pedol Sin 31:287–294
Shen QR, Wang Y, Chen W, Shi RH (1997) Changes of soil microbial biomass C and P during wheat growth after application of organic and inorganic fertilizers. Pedosphere 7:225–230
Vance ED, Brookes PC, Jenkinson DS (1987) An extraction method for measuring soil microbial biomass C. Soil Biol Biochem 19:703–707
Wang Y, Shen QR, Yang ZM, Shi RH (1996) Size of soil microbial biomass in soils of China. Pedosphere 6:265–272
Wang Y, Shen QR, Shi RH (1998) Changes of soil biomass C, N and P and transformation of fertilizer nitrogen after application of organic and inorganic fertilizers. Acta Pedol Sin 35:227–234
Wu J, Jeorgensen RG, Pommerening B, Chaussod R, Brookes PC (1990) Measurement of soil microbial biomass C by fumigation extraction—an autoclaved procedure. Soil Biol Biochem 22:1167–1169
Yoshida S, Ohnishi Y, Kitagishi K (1962) Chemical forms, mobility and deposition of silicon in rice plant. Soil Sci Plant Nutr 8:15–21
Acknowledgements
Financial support for research in the author’s laboratory was obtained from the National Nature Science Foundation of China (40471074) and from the National Commission of Science and Technology of China (2004AA246080). We are grateful to Warren Dick at The Ohio State University, USA for his revision of this paper.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xu, Y., Zhang, Y., Shen, Q. et al. An innovative method for the treatment of rice straw to improve nitrogen uptake efficiency. Biol Fertil Soils 41, 291–294 (2005). https://doi.org/10.1007/s00374-004-0828-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00374-004-0828-1