Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer

Wani, S. P. ; McGill, W. B. ; Robertson, J. A.
Springer
Published 1991
ISSN:
1432-0789
Keywords:
Agroecological rotation ; Hordeum vulgare ; Microbial biomass ; 15N ; Rotation effects ; Pot experiment ; Soil nitrogen
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Geosciences
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Soil N dynamics and barley yields (Hordeum vulgare L.) were compared in pot experiments using surface samples from a Gray Luvisol under three cropping systems at Breton, Alberta: (1) an agroecological 8-year rotation including cereals, forage, and fababeans (Vicia faba L.) as green manure, from wich two plots were selected, one following fababeans, and the second following 3 years of forage; (2) a continuous grain system, with fertilizer N at 90 kg ha-1 year-1; and (3) a classical Breton 5-year rotation [following oats (Avena sativa L.)] involving forage and cereals, without returning crop residues to the land, selecting one plot with PKS treatment and a second as control. The fertilizer N equivalent for the cropping system; “AN” value and “A” value (analogous to AN), but in fertilizer 15N units, soil biomass, and C and N mineralization were monitored. In the first agroecological plot (after fababeans), grain and total plant biomass production were 116% greater than from the continuous grain treatment. Barley plants in the two agroecological plots derived 48.5% and 37.8%, respectively, of their N requirement from non-labelled soil N sources not present in the continuous grain plot. At crop maturity, the recovery of 15N microbial biomass was 1.5 times higher in soil from the first agroecological plot than from the continuous grain plot. The fertilizer N equivalent was 2670 mg pot-1 (485 kg ha-1) for the first and 1850 mg pot-1 for the second agroecological treatment. Fertilizer N equivalent values exceed net amounts of N mineralized by a factor of 4. Recovery by the barley crop of 15N added at 55 mg pot-1 was more efficient in the agroecological treatments (45%–51%) than in the continuous grain or classical Breton treatments (35%–37%). It was concluded (1) that past soil history may be associated more with the ability of barley plants to compete for available N, and hence the use of N, than with net soil N mineralization; and (2) an increased supply of N to crops following the incorporation of fababean residues, manure application, and the soil N-conserving effect of growing legumes were all partly responsible for the observed differences in soil fertility.
Type of Medium:
Electronic Resource
URL:
_version_ 1798295505568006144
autor Wani, S. P.
McGill, W. B.
Robertson, J. A.
autorsonst Wani, S. P.
McGill, W. B.
Robertson, J. A.
book_url http://dx.doi.org/10.1007/BF00369382
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM203458311
issn 1432-0789
journal_name Biology and fertility of soils
materialart 1
notes Summary Soil N dynamics and barley yields (Hordeum vulgare L.) were compared in pot experiments using surface samples from a Gray Luvisol under three cropping systems at Breton, Alberta: (1) an agroecological 8-year rotation including cereals, forage, and fababeans (Vicia faba L.) as green manure, from wich two plots were selected, one following fababeans, and the second following 3 years of forage; (2) a continuous grain system, with fertilizer N at 90 kg ha-1 year-1; and (3) a classical Breton 5-year rotation [following oats (Avena sativa L.)] involving forage and cereals, without returning crop residues to the land, selecting one plot with PKS treatment and a second as control. The fertilizer N equivalent for the cropping system; “AN” value and “A” value (analogous to AN), but in fertilizer 15N units, soil biomass, and C and N mineralization were monitored. In the first agroecological plot (after fababeans), grain and total plant biomass production were 116% greater than from the continuous grain treatment. Barley plants in the two agroecological plots derived 48.5% and 37.8%, respectively, of their N requirement from non-labelled soil N sources not present in the continuous grain plot. At crop maturity, the recovery of 15N microbial biomass was 1.5 times higher in soil from the first agroecological plot than from the continuous grain plot. The fertilizer N equivalent was 2670 mg pot-1 (485 kg ha-1) for the first and 1850 mg pot-1 for the second agroecological treatment. Fertilizer N equivalent values exceed net amounts of N mineralized by a factor of 4. Recovery by the barley crop of 15N added at 55 mg pot-1 was more efficient in the agroecological treatments (45%–51%) than in the continuous grain or classical Breton treatments (35%–37%). It was concluded (1) that past soil history may be associated more with the ability of barley plants to compete for available N, and hence the use of N, than with net soil N mineralization; and (2) an increased supply of N to crops following the incorporation of fababean residues, manure application, and the soil N-conserving effect of growing legumes were all partly responsible for the observed differences in soil fertility.
package_name Springer
publikationsjahr_anzeige 1991
publikationsjahr_facette 1991
publikationsjahr_intervall 8009:1990-1994
publikationsjahr_sort 1991
publisher Springer
reference 12 (1991), S. 10-18
schlagwort Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
search_space articles
shingle_author_1 Wani, S. P.
McGill, W. B.
Robertson, J. A.
shingle_author_2 Wani, S. P.
McGill, W. B.
Robertson, J. A.
shingle_author_3 Wani, S. P.
McGill, W. B.
Robertson, J. A.
shingle_author_4 Wani, S. P.
McGill, W. B.
Robertson, J. A.
shingle_catch_all_1 Wani, S. P.
McGill, W. B.
Robertson, J. A.
Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Summary Soil N dynamics and barley yields (Hordeum vulgare L.) were compared in pot experiments using surface samples from a Gray Luvisol under three cropping systems at Breton, Alberta: (1) an agroecological 8-year rotation including cereals, forage, and fababeans (Vicia faba L.) as green manure, from wich two plots were selected, one following fababeans, and the second following 3 years of forage; (2) a continuous grain system, with fertilizer N at 90 kg ha-1 year-1; and (3) a classical Breton 5-year rotation [following oats (Avena sativa L.)] involving forage and cereals, without returning crop residues to the land, selecting one plot with PKS treatment and a second as control. The fertilizer N equivalent for the cropping system; “AN” value and “A” value (analogous to AN), but in fertilizer 15N units, soil biomass, and C and N mineralization were monitored. In the first agroecological plot (after fababeans), grain and total plant biomass production were 116% greater than from the continuous grain treatment. Barley plants in the two agroecological plots derived 48.5% and 37.8%, respectively, of their N requirement from non-labelled soil N sources not present in the continuous grain plot. At crop maturity, the recovery of 15N microbial biomass was 1.5 times higher in soil from the first agroecological plot than from the continuous grain plot. The fertilizer N equivalent was 2670 mg pot-1 (485 kg ha-1) for the first and 1850 mg pot-1 for the second agroecological treatment. Fertilizer N equivalent values exceed net amounts of N mineralized by a factor of 4. Recovery by the barley crop of 15N added at 55 mg pot-1 was more efficient in the agroecological treatments (45%–51%) than in the continuous grain or classical Breton treatments (35%–37%). It was concluded (1) that past soil history may be associated more with the ability of barley plants to compete for available N, and hence the use of N, than with net soil N mineralization; and (2) an increased supply of N to crops following the incorporation of fababean residues, manure application, and the soil N-conserving effect of growing legumes were all partly responsible for the observed differences in soil fertility.
1432-0789
14320789
Springer
shingle_catch_all_2 Wani, S. P.
McGill, W. B.
Robertson, J. A.
Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Summary Soil N dynamics and barley yields (Hordeum vulgare L.) were compared in pot experiments using surface samples from a Gray Luvisol under three cropping systems at Breton, Alberta: (1) an agroecological 8-year rotation including cereals, forage, and fababeans (Vicia faba L.) as green manure, from wich two plots were selected, one following fababeans, and the second following 3 years of forage; (2) a continuous grain system, with fertilizer N at 90 kg ha-1 year-1; and (3) a classical Breton 5-year rotation [following oats (Avena sativa L.)] involving forage and cereals, without returning crop residues to the land, selecting one plot with PKS treatment and a second as control. The fertilizer N equivalent for the cropping system; “AN” value and “A” value (analogous to AN), but in fertilizer 15N units, soil biomass, and C and N mineralization were monitored. In the first agroecological plot (after fababeans), grain and total plant biomass production were 116% greater than from the continuous grain treatment. Barley plants in the two agroecological plots derived 48.5% and 37.8%, respectively, of their N requirement from non-labelled soil N sources not present in the continuous grain plot. At crop maturity, the recovery of 15N microbial biomass was 1.5 times higher in soil from the first agroecological plot than from the continuous grain plot. The fertilizer N equivalent was 2670 mg pot-1 (485 kg ha-1) for the first and 1850 mg pot-1 for the second agroecological treatment. Fertilizer N equivalent values exceed net amounts of N mineralized by a factor of 4. Recovery by the barley crop of 15N added at 55 mg pot-1 was more efficient in the agroecological treatments (45%–51%) than in the continuous grain or classical Breton treatments (35%–37%). It was concluded (1) that past soil history may be associated more with the ability of barley plants to compete for available N, and hence the use of N, than with net soil N mineralization; and (2) an increased supply of N to crops following the incorporation of fababean residues, manure application, and the soil N-conserving effect of growing legumes were all partly responsible for the observed differences in soil fertility.
1432-0789
14320789
Springer
shingle_catch_all_3 Wani, S. P.
McGill, W. B.
Robertson, J. A.
Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Summary Soil N dynamics and barley yields (Hordeum vulgare L.) were compared in pot experiments using surface samples from a Gray Luvisol under three cropping systems at Breton, Alberta: (1) an agroecological 8-year rotation including cereals, forage, and fababeans (Vicia faba L.) as green manure, from wich two plots were selected, one following fababeans, and the second following 3 years of forage; (2) a continuous grain system, with fertilizer N at 90 kg ha-1 year-1; and (3) a classical Breton 5-year rotation [following oats (Avena sativa L.)] involving forage and cereals, without returning crop residues to the land, selecting one plot with PKS treatment and a second as control. The fertilizer N equivalent for the cropping system; “AN” value and “A” value (analogous to AN), but in fertilizer 15N units, soil biomass, and C and N mineralization were monitored. In the first agroecological plot (after fababeans), grain and total plant biomass production were 116% greater than from the continuous grain treatment. Barley plants in the two agroecological plots derived 48.5% and 37.8%, respectively, of their N requirement from non-labelled soil N sources not present in the continuous grain plot. At crop maturity, the recovery of 15N microbial biomass was 1.5 times higher in soil from the first agroecological plot than from the continuous grain plot. The fertilizer N equivalent was 2670 mg pot-1 (485 kg ha-1) for the first and 1850 mg pot-1 for the second agroecological treatment. Fertilizer N equivalent values exceed net amounts of N mineralized by a factor of 4. Recovery by the barley crop of 15N added at 55 mg pot-1 was more efficient in the agroecological treatments (45%–51%) than in the continuous grain or classical Breton treatments (35%–37%). It was concluded (1) that past soil history may be associated more with the ability of barley plants to compete for available N, and hence the use of N, than with net soil N mineralization; and (2) an increased supply of N to crops following the incorporation of fababean residues, manure application, and the soil N-conserving effect of growing legumes were all partly responsible for the observed differences in soil fertility.
1432-0789
14320789
Springer
shingle_catch_all_4 Wani, S. P.
McGill, W. B.
Robertson, J. A.
Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Agroecological rotation
Hordeum vulgare
Microbial biomass
15N
Rotation effects
Pot experiment
Soil nitrogen
Summary Soil N dynamics and barley yields (Hordeum vulgare L.) were compared in pot experiments using surface samples from a Gray Luvisol under three cropping systems at Breton, Alberta: (1) an agroecological 8-year rotation including cereals, forage, and fababeans (Vicia faba L.) as green manure, from wich two plots were selected, one following fababeans, and the second following 3 years of forage; (2) a continuous grain system, with fertilizer N at 90 kg ha-1 year-1; and (3) a classical Breton 5-year rotation [following oats (Avena sativa L.)] involving forage and cereals, without returning crop residues to the land, selecting one plot with PKS treatment and a second as control. The fertilizer N equivalent for the cropping system; “AN” value and “A” value (analogous to AN), but in fertilizer 15N units, soil biomass, and C and N mineralization were monitored. In the first agroecological plot (after fababeans), grain and total plant biomass production were 116% greater than from the continuous grain treatment. Barley plants in the two agroecological plots derived 48.5% and 37.8%, respectively, of their N requirement from non-labelled soil N sources not present in the continuous grain plot. At crop maturity, the recovery of 15N microbial biomass was 1.5 times higher in soil from the first agroecological plot than from the continuous grain plot. The fertilizer N equivalent was 2670 mg pot-1 (485 kg ha-1) for the first and 1850 mg pot-1 for the second agroecological treatment. Fertilizer N equivalent values exceed net amounts of N mineralized by a factor of 4. Recovery by the barley crop of 15N added at 55 mg pot-1 was more efficient in the agroecological treatments (45%–51%) than in the continuous grain or classical Breton treatments (35%–37%). It was concluded (1) that past soil history may be associated more with the ability of barley plants to compete for available N, and hence the use of N, than with net soil N mineralization; and (2) an increased supply of N to crops following the incorporation of fababean residues, manure application, and the soil N-conserving effect of growing legumes were all partly responsible for the observed differences in soil fertility.
1432-0789
14320789
Springer
shingle_title_1 Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
shingle_title_2 Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
shingle_title_3 Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
shingle_title_4 Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
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timestamp 2024-05-06T09:37:16.594Z
titel Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
titel_suche Soil N dynamics and N yield of barley grown on Breton loam using N from biological fixation or fertilizer
topic W
TE-TZ
ZA-ZE
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