The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping
Rhodes grass (Chloris oayana) was grown under glasshouse conditions on soils that had previously grown from 1 to 6 soybean (Glycine max) or Siratro (Macroptillium atropurpureum) crops. Soil mineral N contents at sowing were higher in Siratro-cropped than soybean-cropped soils and increased with cro...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer Verlag
1980
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/33802/ http://psasir.upm.edu.my/id/eprint/33802/1/the%20growth%20and%20nitrogen%20uptake.pdf |
| _version_ | 1848847599419785216 |
|---|---|
| author | Yaacob, Othman Blair, Graeme J. |
| author_facet | Yaacob, Othman Blair, Graeme J. |
| author_sort | Yaacob, Othman |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Rhodes grass (Chloris oayana) was grown under glasshouse conditions on soils that had previously grown from 1 to 6 soybean (Glycine max) or Siratro (Macroptillium atropurpureum) crops. Soil mineral N contents at sowing were
higher in Siratro-cropped than soybean-cropped soils and increased with cropping history. Yields of Rhodes grass at the first harvest (14 weeks) were related to soil mineral N levels at sowing by the relationship Y = 138.7 (l~0.917e~~)Grass grown on all soybean soils was responsive to N at both harvests (14 and 28 weeks). Grass grown on
soils that had grown three or more Siratro crops was non-responsive to N at the first harvest but responses to N were recorded on all Siratro soils at the second harvest. The amount of N removed by the grass crops was small in relation to the total amount present in the soil system. This resulted in no change in soil total N levels over the two crop periods. These results highlight the need to study N dynamics in crop systems rather than continue to measure N
pool sizes when evaluating the contribution of biologically
fixed N to the nutrition of subsequent non-legume crops |
| first_indexed | 2025-11-15T09:21:10Z |
| format | Article |
| id | upm-33802 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:21:10Z |
| publishDate | 1980 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-338022015-04-20T01:59:01Z http://psasir.upm.edu.my/id/eprint/33802/ The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping Yaacob, Othman Blair, Graeme J. Rhodes grass (Chloris oayana) was grown under glasshouse conditions on soils that had previously grown from 1 to 6 soybean (Glycine max) or Siratro (Macroptillium atropurpureum) crops. Soil mineral N contents at sowing were higher in Siratro-cropped than soybean-cropped soils and increased with cropping history. Yields of Rhodes grass at the first harvest (14 weeks) were related to soil mineral N levels at sowing by the relationship Y = 138.7 (l~0.917e~~)Grass grown on all soybean soils was responsive to N at both harvests (14 and 28 weeks). Grass grown on soils that had grown three or more Siratro crops was non-responsive to N at the first harvest but responses to N were recorded on all Siratro soils at the second harvest. The amount of N removed by the grass crops was small in relation to the total amount present in the soil system. This resulted in no change in soil total N levels over the two crop periods. These results highlight the need to study N dynamics in crop systems rather than continue to measure N pool sizes when evaluating the contribution of biologically fixed N to the nutrition of subsequent non-legume crops Springer Verlag 1980 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/33802/1/the%20growth%20and%20nitrogen%20uptake.pdf Yaacob, Othman and Blair, Graeme J. (1980) The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping. Plant and Soil, 57 (2-3). pp. 249-255. ISSN 0032-079X 10.1007/BF02211685 |
| spellingShingle | Yaacob, Othman Blair, Graeme J. The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping |
| title | The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping |
| title_full | The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping |
| title_fullStr | The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping |
| title_full_unstemmed | The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping |
| title_short | The growth and nitrogen uptake of Rhodes grass grown on soils with varying histories of legume cropping |
| title_sort | growth and nitrogen uptake of rhodes grass grown on soils with varying histories of legume cropping |
| url | http://psasir.upm.edu.my/id/eprint/33802/ http://psasir.upm.edu.my/id/eprint/33802/ http://psasir.upm.edu.my/id/eprint/33802/1/the%20growth%20and%20nitrogen%20uptake.pdf |