scholarly journals Performance and Selection of Nitrogen-Fixing Hedgerow Species

2004 ◽  
Author(s):  
S. B. Thapa ◽  
T. Ya
Keyword(s):  
Nitrogen Fixing ◽  
Hedgerow Species ◽  
Selection Of

Nitrogen Fixation: A Biotechnological Opportunity for Canadian Forestry

1983 ◽  
Vol 59 (5) ◽  
pp. 249-259 ◽  
Author(s):  
L. Chatarpaul ◽  
A. Carlisle
Keyword(s):  
Organic Matter ◽  
Nitrogen Fixation ◽  
Genetic Selection ◽  
Field Trials ◽  
Management Systems ◽  
Nitrogen Fixing ◽  
Site Productivity ◽  
Mixed Stands ◽  
Trees And Shrubs ◽  
Selection Of

Intensive harvesting and forest management systems will increase nitrogen and organic matter losses from forest soils, and there will be a need to manage the soils using both fertilizers and nitrogen-fixing techniques to maintain site productivity. Legumes and non-legumes with nitrogen-fixing symbioses can fix up to 300 kg ha−1 year−1 of nitrogen and provide soil organic matter, but poor soils will need fertilization to maintain the nitrogen-fixing process. There are many species and cultural techniques the forester can use, including green manuring and mixed stands, but carefully designed field trials are needed to solve cultural problems. In addition, there are many opportunities for genetic selection of both the trees and shrubs and the bacteria (actinomycetes) involved. Before the systems can be used effectively the operational foresters will need to be better informed about the soil biota and the interaction with site and vegetation. The development of nitrogen-fixing systems offers a biotechnological opportunity for Canadian foresters to increase tree yield while maintaining site productivity.

scholarly journals Screening and Selection of the Soil Microorganisms on the Ability of “Nitrogen-Fixing Activity”

2015 ◽  
Vol 77 (4) ◽  
pp. 2-7
Author(s):  
V.Ph. Patyka ◽  
◽  
O.V. Kyrychenko ◽  
S.Ya. Kots ◽  
◽  
...  
Keyword(s):  
Soil Microorganisms ◽  
Nitrogen Fixing ◽  
Selection Of

scholarly journals Selection of nitrogen-fixing deficient Burkholderia vietnamiensis strains by cystic fibrosis patients: involvement of nif gene deletions and auxotrophic mutations

2007 ◽  
Vol 9 (5) ◽  
pp. 1176-1185 ◽  
Author(s):  
Aymeric Menard ◽  
Claire Monnez ◽  
Paulina Estrada de los Santos ◽  
Christine Segonds ◽  
Jesus Caballero-Mellado ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Nitrogen Fixing ◽  
Gene Deletions ◽  
Burkholderia Vietnamiensis ◽  
Nif Gene ◽  
Selection Of

scholarly journals SELECTION OF NITROGEN FIXING AND PHOSPHATE- MOBILIZING MICROORGANISMS ENSURING BOTH PRODUCTIVITY RISE AND DISEASE RESISTANCE OF LINUM USITATISSIMUM ELONGATA L.

2007 ◽  
Vol 4 ◽  
pp. 74-83
Author(s):  
S.V. Mokhova ◽  
N.V. Melnikova ◽  
L.A. Sukhovitskaja
Keyword(s):  
Disease Resistance ◽  
Linum Usitatissimum ◽  
Nitrogen Fixing ◽  
Microbial Preparation ◽  
Selection Of

Rhizobacteria isolated from Linum ustiatissmum elongata L. rfazoplane possess a complex of valuable properties and they are promising species for elaboration of microbial preparation to raise plant productivtiy.

All field-collected actinorhizae examined on Comptonia peregrina and Myrica pensylvanica in Maine are spore negative

1989 ◽  
Vol 67 (5) ◽  
pp. 1460-1464 ◽  
Author(s):  
Christa R. Schwintzer
Keyword(s):  
Soil Ph ◽  
Host Selection ◽  
Positive Root ◽  
Root Nodules ◽  
Tree Cover ◽  
Nitrogen Fixing ◽  
Selection Of ◽  
Myrica Pensylvanica

The occurrence of spore-negative and spore-positive root nodules of Comptonia peregrina (sweet fern) and Myrica pensylvanica (bayberry) was examined in Maine, as well as the distribution of these nitrogen-fixing shrubs and selected characteristics of the environments in which they occur. Thirty-one widely distributed sweet fern sites were examined, and 16 of these were sampled intensively. The 16 sites were relatively open with < 30% tree cover, and their soil was coarse textured with pH ranging from 3.8 to 6.1. Bayberry nodules were examined at eight sites. All eight sites had the same characteristics as those of sweet fern except that soil pH ranged from 3.4 to 7.4. All nodules on both sweet fern and bayberry were spore negative. One possible explanation is host selection of spore-negative Frankia strains.

Cognitive gadgets and cognitive priors

2019 ◽  
Vol 42 ◽  
Author(s):  
Gian Domenico Iannetti ◽  
Giorgio Vallortigara
Keyword(s):  
Cognitive Neuroscience ◽  
Selection Of

Abstract Some of the foundations of Heyes’ radical reasoning seem to be based on a fractional selection of available evidence. Using an ethological perspective, we argue against Heyes’ rapid dismissal of innate cognitive instincts. Heyes’ use of fMRI studies of literacy to claim that culture assembles pieces of mental technology seems an example of incorrect reverse inferences and overlap theories pervasive in cognitive neuroscience.

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