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Lime effect on forage legume growth and mineral composition in an acid subsoil

 

作者: V. C. Baligar,   R. J. Wright,   O. L. Bennett,   J. L. Hern,   H. D. Perry,   M. D. Smedley,  

 

期刊: Communications in Soil Science and Plant Analysis  (Taylor Available online 1985)
卷期: Volume 16, issue 10  

页码: 1079-1093

 

ISSN:0010-3624

 

年代: 1985

 

DOI:10.1080/00103628509367667

 

出版商: Taylor & Francis Group

 

关键词: Tolerance index for Al;Nutrient composition;Ca;Mg;P;K;Cu;Zn

 

数据来源: Taylor

 

摘要:

Six legume species and several varieties within the species were grown in a greenhouse pot experiment using the Bt horizon of a Lily (Typic Hapludult) soil. Lime treatments were 0 and 2.2 g Ca(OH)2/kg soil. Liming increased the soil pH from 4.6 to 6.2. The species and varieties responded differentially to lime. Both shoot and root growth of legumes showed a significant species and lime interaction effect. Based on tolerance index groups for shoot growth, alfalfa varieties were classified as very sensitive, red clovers and white clovers as sensitive and Essex soybean and Carroll birdsfoot trefoil as tolerant to the acid soil. The remaining legumes were grouped as moderately tolerant to the acid soil. Liming increased shoot concentrations of Ca in all the legumes and reduced concentration of Mg, K, and Zn. Species and varieties within species differed significantly in concentrations of all mineral elements studied except Mg. Further significant differences in elemental composition were observed due to both lime and lime species interactions. In the limed soil, the Ca concentration of the shoots increased as the tolerance index decreased.

 

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