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| Web URL(s): | https://link.springer.com/article/10.1007%2FBF00011497
Last checked: 09/25/2017 |
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| Publication Type:
| Refereed |
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| Author(s): | Powell, Conway L. |
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| Author Affiliation: | Soil and Field Research Organisation, Ruakura and Agricultural Research Centre, Hamilton, New Zealand |
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| Title: | Effect of phosphate fertiliser and plant density on phosphate inflow into ryegrass roots in soil |
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| Source: | Plant and Soil. Vol. 47, No. 2, June 1977, p. 383-393. |
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| Publishing Information: | Dordrecht, Netherland: Martinus Nijhoff Publishers |
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| # of Pages: | 11 |
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| Related Web URL: | https://www.springerlink.com/content/u2w04mrn7m060646/
Last checked: 10/06/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Lolium perenne; Phosphorus; Fertilizers; Plant response; Plant density
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| Geographic Terms: | New Zealand |
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| Abstract/Contents: | "Ryegrass plants were grown in pots of Horotiu sandy loam, either singly or as a dense sward, with a range of P fertiliser rates and regular harvests. Plants were non-mycorrhizal. P inflows into roots increased with P fertiliser rate. Sward plants absorbed up to 14.3% of the P fertiliser added, and single plants up to 7.6%. Sward plants absorbed most of the fertiliser P available to them within two weeks of germinating. After that, root growth ceased except at the highest P fertiliser rate used, and P inflow into roots decreased from 10-15 to 10-16 mole/cm/sec. Single plants, however, had continuous root growth and P uptake throughout the two month experiment, except for those at the two lowest fertiliser rates. Singly grown plants absorbed much more P than each plant in the dense swards. In single plants, root length/root weight ratio increased with increasing P fertiliser. Plant growth was dependant [dependent] on continued P uptake by the roots, which only occurred if new roots were continually produced and new volumes of soil tapped for P. Non-growing root systems absorbed very little P." |
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| Language: | English |
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| References: | 20 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Powell, C. L. 1977. Effect of phosphate fertiliser and plant density on phosphate inflow into ryegrass roots in soil. Plant Soil. 47(2):p. 383-393. |
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| Web URL(s):
https://link.springer.com/article/10.1007%2FBF00011497
Last checked: 09/25/2017 |
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MSU catalog number: SB 13 .P55 |
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