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| DOI: | 10.2136/sssaj1968.03615995003200010022x |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/sssaj/pdfs/32/1/SS0320010086
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Terman, G. L.;
Brown, M. A. |
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| Author Affiliation: | Terman: Agronomist; Brown: Turf-Grass Specialties, Inc., Fort Lauderdale, Florida and Soils and Fertilizer Research Branch, National Fertilizer Development Center, TVA, Muscle Shoals, Alabama |
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| Title: | Uptake of fertilizer and soil nitrogen by ryegrass, as affected by carbonaceous residue |
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| Source: | Soil Science Society of America Proceedings. Vol. 32, No. 1, January/February 1968, p. 86-90. |
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| Publishing Information: | Madison, Wisconsin: Soil Science Society of America |
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| # of Pages: | 5 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/sssaj/abstracts/32/1/SS0320010086
Last checked: 11/10/2016
Access conditions: Item is within a limited-access website
Notes: Abstract only |
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| Keywords: | TIC Keywords: Fertilization; Forage; Lolium multiflorum; Nitrogen uptake; Plant residues; Chemical properties of soil; Nitrogen
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| Abstract/Contents: | "Annual ryegrass (Lolium multiflorum) was grown on limed Hartsells fine sandy loam and Decatur silty clay loam fertilized with 0, 120, 300, 600, and 900 mg of N as 15N-labeled (NH4)2SO4 per pot (3 kg of soil). Half of the pots also received 15 g of corn (Zea mays) forage residue (1.05% N) mixed with the soil and half received none. Six clippings of forage and roots were harvested after the final clipping. Total yield of dry forage and uptake of N were linear for all rates of applied N without residue and for the 300-, 600-, and 900-mg rates with applied residue. As estimated by linear regression from total N uptake, apparent recovery by six clippings of ryegrass plus roots, grown without residue, was 78% from Hartsells soil and 76% from Decatur. The corresponding slightly lower recoveries of 75 and 72% of the fertilizer N applied reflect uptake of soil N. Recoveries of fertilizer N were 90% from the Hartsells and 85% from the Decatur soil-plant systems. As estimated by difference, recoveries of fertilizer N by ryegrass increased, and recoveries from the plant-soil systems decreased with increase in amount of applied N. Crop uptake of soil N increased as fertilizer N was depleted from the soils. Addition of the carbonaceous residue caused apparent immobilization of 141 mg of fertilizer N in Hartsells and 164 mg in Decatur soil. Percentages of fertilizer N immobilized in the soils decreased, but actual amounts increased with increasing amount applied. A portion of the fertilizer N, independent of amount applied, was immobilized in each soil." |
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| Language: | English |
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| References: | 9 |
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| Note: | Equation
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Terman, G. L., and M. A. Brown. 1968. Uptake of fertilizer and soil nitrogen by ryegrass, as affected by carbonaceous residue. Soil Science Society of America Proceedings. 32(1):p. 86-90. |
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| DOI: 10.2136/sssaj1968.03615995003200010022x |
| Web URL(s):
https://dl.sciencesocieties.org/publications/sssaj/pdfs/32/1/SS0320010086
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2199342a |
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