Estimation of available n status of soil by wheat and barley: A-values
The authors have examined the effect of nitrogen form, rate of addition and the timing of the nitrogen fertilizer application on the A-value. Two non N sub(2)-fixing crops were used to demonstrate the influence of these factors and provide information on the assumptions inherent with the use of A-va...
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| Veröffentlicht in: | Soil biology & biochemistry 1989, Vol.21 (1), p.169-172 |
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| container_end_page | 172 |
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| container_title | Soil biology & biochemistry |
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| creator | Smith, C.J. Whitfield, D.M. Gyles, O.A. |
| description | The authors have examined the effect of nitrogen form, rate of addition and the timing of the nitrogen fertilizer application on the A-value. Two non N sub(2)-fixing crops were used to demonstrate the influence of these factors and provide information on the assumptions inherent with the use of A-value methodology to measure biological N sub(2) fixation. super(15)N labelled fertilizer was employed as the technique to determine the uptake of inorganic N in the soil and the uptake efficiency of fertilizer N. |
| doi_str_mv | 10.1016/0038-0717(89)90028-X |
| format | Article |
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Two non N sub(2)-fixing crops were used to demonstrate the influence of these factors and provide information on the assumptions inherent with the use of A-value methodology to measure biological N sub(2) fixation. super(15)N labelled fertilizer was employed as the technique to determine the uptake of inorganic N in the soil and the uptake efficiency of fertilizer N.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Biometrics, statistics, experimental designs, modeling, agricultural computer applications</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. Plant production</subject><subject>Generalities. Biometrics, experimentation. Remote sensing</subject><subject>Hordeum</subject><subject>Soil-plant relationships. Soil fertility</subject><subject>Soil-plant relationships. Soil fertility. Fertilization. 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| fulltext | fulltext |
| identifier | ISSN: 0038-0717 |
| ispartof | Soil biology & biochemistry, 1989, Vol.21 (1), p.169-172 |
| issn | 0038-0717 1879-3428 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Agronomy. Soil science and plant productions Biological and medical sciences Biometrics, statistics, experimental designs, modeling, agricultural computer applications Fundamental and applied biological sciences. Psychology General agronomy. Plant production Generalities. Biometrics, experimentation. Remote sensing Hordeum Soil-plant relationships. Soil fertility Soil-plant relationships. Soil fertility. Fertilization. Amendments Triticum |
| title | Estimation of available n status of soil by wheat and barley: A-values |
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