Estimating the contribution of nitrogen from legume cover crops to the nitrogen nutrition of grapevines using a 15N dilution technique

2010 ◽  
Vol 334 (1-2) ◽  
pp. 247-259 ◽  
Author(s):  
Carlos Ovalle ◽  
Alejandro del Pozo ◽  
Mark B. Peoples ◽  
Arturo Lavín
Keyword(s):  
Cover Crops ◽  
Nitrogen Nutrition ◽  
Dilution Technique ◽  
15N Dilution ◽  
15N Dilution Technique ◽  
Legume Cover Crops

scholarly journals DETECTION OF AZOLLA-N AND UREA-N CONTRIBUTION TO RICE BY THE USE OF 15N DILUTION TECHNIQUE.

2006 ◽  
Vol 31 (6) ◽  
pp. 3911-3919
Author(s):  
F.M. Ghazal ◽  
R. M. EI-Shahat ◽  
M. Y. Abou-Zeid
Keyword(s):  
Dilution Technique ◽  
15N Dilution ◽  
15N Dilution Technique

Legume Cover Crops as a Nitrogen Source for No‐Till Corn and Grain Sorghum

1990 ◽  
Vol 82 (4) ◽  
pp. 769-772 ◽  
Author(s):  
R. L. Blevins ◽  
J. H. Herbek ◽  
W. W. Frye
Keyword(s):  
Nitrogen Source ◽  
Cover Crops ◽  
Grain Sorghum ◽  
No Till ◽  
Legume Cover Crops

Legume Cover Crops with Winter Cereals in Southern Manitoba

2001 ◽  
Vol 93 (5) ◽  
pp. 1086-1096 ◽  
Author(s):  
Joanne R. Thiessen Martens ◽  
Jeff W. Hoeppner ◽  
Martin H. Entz
Keyword(s):  
Cover Crops ◽  
Winter Cereals ◽  
Legume Cover Crops

Influence of legume cover crops and conservation tillage on soil populations of selected fungal genera

1988 ◽  
Vol 34 (3) ◽  
pp. 201-206 ◽  
Author(s):  
C. S. Rothrock ◽  
W. L. Hargrove
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Conservation Tillage ◽  
Field Studies ◽  
Macrophomina Phaseolina ◽  
Hairy Vetch ◽  
Fusarium Spp ◽  
Crimson Clover ◽  
Legume Cover Crops ◽  
Legume Cover Crop

The influence of winter legume cover crops and of tillage on soil populations of fungal genera containing plant pathogenic species in the subsequent summer sorghum crop were examined in field studies. Legume cover crops significantly increased populations of Pythium spp. throughout the sorghum crop compared with a rye cover crop or no cover crop. This stimulation of the populations of Pythium spp. was not solely due to colonization of cover-crop residue, as populations were significantly greater at the time the legume cover crop was desiccated. Removal of aboveground residue generally decreased populations of Pythium spp. in soil. Incorporation of residue by tillage increased populations of Pythium spp. at some sampling dates. Legumes differed in the magnitude of stimulation, with hairy vetch stimulating Pythium spp. more than crimson clover. Cover crop treatments did not consistently influence soil populations of Fusarium spp., Rhizoctonia solani, Rhizoctonia-like binucleate fungi, or Macrophomina phaseolina. Macrophomina phaseolina populations were significantly greater under no tillage.

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