Dinitrogen fixation (Acetylene reduction) and nitrogen accumulation in peas cultivated under the standard growth conditions

1993 ◽  
Vol 38 (3) ◽  
pp. 229-234 ◽  
Author(s):  
V. Škrdleta ◽  
M. Němcová ◽  
L. Lisá ◽  
K. Novák
Keyword(s):  
Acetylene Reduction ◽  
Growth Conditions ◽  
Dinitrogen Fixation ◽  
Nitrogen Accumulation

Nitrogen fixation associated with 'Park' Kentucky bluegrass (Poapratensis L.)

1979 ◽  
Vol 25 (10) ◽  
pp. 1197-1200 ◽  
Author(s):  
R. C. Shearman ◽  
W. L. Pedersen ◽  
R. V. Klucas ◽  
E. J. Kinbacher
Keyword(s):  
Nitrogen Fixation ◽  
Acetylene Reduction ◽  
Poa Pratensis ◽  
Kentucky Bluegrass ◽  
Acetylene Reduction Activity ◽  
Controlled Environment ◽  
Nitrogen Accumulation ◽  
Reduction Activity ◽  
Significant Difference ◽  
Reduction Assay

Associative nitrogen fixation in Kentucky bluegrass (Poa pratensis L.) turfs inoculated with five nitrogen-fixing bacterial isolates was evaluated using the acetylene reduction assay and nitrogen accumulation as indicators of fixation. 'Park' and 'Nugget' Kentucky bluegrass turfs were grown in controlled environment chambers and inoculated with Klebsiella pneumoniae (W-2, W-6, and W-14), Erwinia herbicola (W-8), and Enterobacter cloacae (W-11). 'Park' inoculated with K. pneumoniae (W-6) had significant acetylene reduction activity using undisturbed turfs. Other treatments including turfs treated with heat-killed cells had no significant difference in acetylene reduction. In a second study, 'Park' and 'South Dakota Certified' turfs were grown in a greenhouse and inoculated with K. pneumoniae (W-6) and E. herbicola (W-8). 'Park' inoculated with K. pneumoniae (W-6) had increased acetylene reduction activity rates and also a greater nitrogen accumulation in aerial tissues when compared to controls. Acetylene reduction activity was correlated (r = 0.92) to nitrogen accumulation. Other treatments did not effectively increase acetylene reduction activity or nitrogen accumulation.

scholarly journals Effects of irrigation and nitrogen on chlorophyll content, dry matter and nitrogen accumulation in sugar beet (Beta vulgaris L.)

2021 ◽  
Author(s):  
Wang Ning ◽  
Fu Fengzhen ◽  
Ji Jinfeng ◽  
Wang Peng ◽  
He Shuping ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Chlorophyll Content ◽  
Rapid Growth ◽  
Dry Matter ◽  
Growth Stage ◽  
Growth Conditions ◽  
Nitrogen Accumulation ◽  
Dry Matter Accumulation ◽  
Plant Materials ◽  
Northeast Of China

Abstract A two-year field experiment was conducted to analyze the growth conditions, physical features, yield, and nitrogen use efficiency (NUE) of sugar-beet under limited irrigation conditions in northeast of China. A cultivar H003 was used as plant materials; six treatments (C1-C6) were included: C1, no nitrogen applied, rain-fed; C2, 120.00 kg nitrogen hm− 2, rain-fed; C3, no nitrogen applied, hole irrigation for seeding; C4, 120.00 kg nitrogen hm− 2, hole irrigation for seeding; C5, no nitrogen applied, hole irrigation for seeding; and C6, 120.00 kg nitrogen hm− 2, hole irrigation for seeding, and irrigation at foliage rapid growth stage. The irrigation supply was only 500 mL/plant once. Results showed C6 showed the highest chlorophyll content, dry matter accumulation, yield, etc. and had the best NUE among all the treatments. In conclusion, under the routine fertilization conditions of northeast of China, the cultivation measure of hole irrigation 500 mL/plant for seeding combined with irrigation 500 mL/plant at foliage rapid growth stage greatly improved sugar-beet yield and NUE.

Dinitrogen fixation by surface peat and Sphagnum in an ombrotrophic bog

1982 ◽  
Vol 60 (5) ◽  
pp. 538-543 ◽  
Author(s):  
Rachel R. Chapman ◽  
Harold F. Hemond
Keyword(s):  
Acetylene Reduction ◽  
Dinitrogen Fixation ◽  
Bulk Precipitation ◽  
Ombrotrophic Bog ◽  
Eastern Massachusetts ◽  
Surface Peat

Annual dinitrogen fixation at the surface of ombrotrophic Thoreau's Bog in eastern Massachusetts, U.S.A., is estimated at 1.0 g N∙m2. The rates of acetylene reduction are lower but still significant in the dark, suggesting that fixation is carried out both photosynthetically and heterotrophically. The ratio 15N2 fixed: C2H2 reduced was 1 mol: 3.5 mol in in vitro calibration experiments. Dinitrogen fixation is ecologically important in this bog as it exceeds the only other known input of nitrogen, namely deposition of NO3− and NH4+ in bulk precipitation.

scholarly journals Effects of irrigation and nitrogen on chlorophyll content, dry matter and nitrogen accumulation in sugar beet (Beta vulgaris L.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ning Wang ◽  
Fengzhen Fu ◽  
Hongrong Wang ◽  
Peng Wang ◽  
Shuping He ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Chlorophyll Content ◽  
Rapid Growth ◽  
Dry Matter ◽  
Growth Stage ◽  
Growth Conditions ◽  
Nitrogen Accumulation ◽  
Dry Matter Accumulation ◽  
Plant Materials ◽  
Northeast Of China

AbstractA 2-year field experiment was conducted to analyze the growth conditions, physical features, yield, and nitrogen use efficiency (NUE) of sugar-beet under limited irrigation conditions in northeast of China. A cultivar H003 was used as plant materials; six treatments (C1–C6) were included: C1, no nitrogen applied, rain-fed; C2, nitrogen (120.00 kg ha−1), rain-fed; C3, no nitrogen applied, hole irrigation for seeding; C4, nitrogen (120.00 kg ha−1), hole irrigation for seeding; C5, no nitrogen applied, hole irrigation for seeding; and C6, nitrogen (120.00 kg ha−1), hole irrigation for seeding, and irrigation at foliage rapid growth stage. The irrigation supply was only 500 mL/plant once. Results showed C6 showed the highest chlorophyll content, dry matter accumulation, yield, etc. and had the best NUE among all the treatments. In conclusion, under the routine fertilization conditions of northeast of China, the cultivation measure of hole irrigation 500 mL/plant for seeding combined with irrigation 500 mL/plant at foliage rapid growth stage greatly improved sugar-beet yield and NUE.

Dinitrogen fixation — acetylene reduction in soybeans during the reproductive growth period

1978 ◽  
Vol 20 (3) ◽  
pp. 210-216 ◽  
Author(s):  
V. Škrdleta ◽  
V. Našinec ◽  
Alena Hyndráková ◽  
Marie Němcová
Keyword(s):  
Acetylene Reduction ◽  
Growth Period ◽  
Dinitrogen Fixation ◽  
Reproductive Growth
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