scholarly journals Biological N Fixation and N Transfer in an Intercropping System between Legumes and Organic Cherry Tomatoes in Succession to Green Corn

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 690
Author(s):  
Gabriela Cristina Salgado ◽  
Edmilson Jose Ambrosano ◽  
Fabrício Rossi ◽  
Ivani Pozar Otsuk ◽  
Gláucia Maria Bovi Ambrosano ◽  
...  
Keyword(s):  
15N Natural Abundance ◽  
Natural Abundance ◽  
Nitrogen Transfer ◽  
N Fixation ◽  
Cherry Tomato ◽  
N Transfer ◽  
Velvet Bean ◽  
Biological N Fixation ◽  
Biological Nitrogen ◽  
Cherry Tomatoes

The aim of this study was to investigate the transfer of N from different legumes to cherry tomatoes in the intercropping system under residual straw of the previous green corn crop using the 15N natural abundance method. We also investigated the temporal variation in nitrogen transfer to a cherry tomato, the biological nitrogen fixation (BNF) of legumes, and the N concentration of green corn cultivated in the intercrop succession. The experimental design was a complete randomized block with eight treatments and five replications, described as follows: two controls consisting of a monocrop of cherry tomato with or without residual straw, cherry tomato and jack bean, sun hemp, dwarf velvet bean, mung bean, and white lupine or cowpea bean in intercropping system. The BNF was responsible for more than half of the N accumulated in the legumes. The N of legumes was transferred to cherry tomato in similar quantities, and the leaves and fruits of cherry tomato received more N transfer than shoots. It was shown that N transfer increases with the growth/development of cherry tomatoes. The intercropping system with legumes did not affect the 15N natural abundance of leaves and the aboveground biomass of green corn cultivated in succession.

Differences in contribution of biological nitrogen fixation to yield performance of common bean cultivars as assessed by the 15N natural abundance technique

2020 ◽  
Vol 454 (1-2) ◽  
pp. 327-341
Author(s):  
Rafael Sanches Pacheco ◽  
Robert Michael Boddey ◽  
Bruno José Rodrigues Alves ◽  
Enderson Petrônio de Brito Ferreira ◽  
Rosângela Straliotto ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Biological Nitrogen Fixation ◽  
15N Natural Abundance ◽  
Natural Abundance ◽  
Yield Performance ◽  
Biological Nitrogen

Nitrogen Transfer Between Plants: A 15N Natural Abundance Study with Crop and Weed Species

2006 ◽  
Vol 282 (1-2) ◽  
pp. 7-20 ◽  
Author(s):  
K. A. Moyer-Henry ◽  
J. W. Burton ◽  
D. W. Israel ◽  
T. W. Rufty
Keyword(s):  
15N Natural Abundance ◽  
Natural Abundance ◽  
Nitrogen Transfer ◽  
Weed Species

Characterizing nitrogen transfer from red clover populations to companion bluegrass under field conditions

2012 ◽  
Vol 92 (6) ◽  
pp. 1163-1173 ◽  
Author(s):  
R. M. M. S. Thilakarathna ◽  
Y. A. Papadopoulos ◽  
A. V. Rodd ◽  
A. N. Gunawardena ◽  
S. A. E. Fillmore ◽  
...  
Keyword(s):  
Soil Water ◽  
Trifolium Pratense ◽  
Poa Pratensis ◽  
Red Clover ◽  
Growing Season ◽  
Field Conditions ◽  
Nitrogen Transfer ◽  
Nitrate Content ◽  
N Fixation ◽  
N Transfer

Thilakarathna, R. M. M. S., Papadopoulos, Y. A., Rodd, A. V., Gunawardena, A. N., Fillmore, S. A. E. and Prithiviraj, B. 2012. Characterizing nitrogen transfer from red clover populations to companion bluegrass under field conditions. Can. J. Plant Sci. 92: 1163–1173. The ability of two red clover (Trifolium pratense L.) cultivars, AC Christie (diploid) and Tempus (tetraploid), to transfer fixed nitrogen (N) to companion bluegrass (Poa pratensis L.) was evaluated under field conditions. Plant samples were harvested three times during the 2009 growing season and N transfer from the red clover cultivars to bluegrass was determined using the natural abundance method for first harvest and 15N dilution techniques for second and third harvests. Soil and soil water samples were used to evaluate cultivar effects on soil N conditions. Both red clover cultivars derived more than 90% of their N from biological N fixation. The proportion of bluegrass N derived from interplant N transfer was 7, 11, and 26% for the first, second, and third harvests, respectively. Soil KCl extractable nitrate increased along the three cuts for Tempus in the 0 to 15-cm soil zone. Soil-water nitrate content increased periodically for AC Christie and remained constant for Tempus throughout the growing season. This result indicates that the two cultivars have distinctly different N cycling patterns.

Forage tree legumes. II. Investigation of nitrogen transfer to an associated grass using a split-root technique

1990 ◽  
Vol 41 (3) ◽  
pp. 531 ◽  
Author(s):  
DW Catchpoole ◽  
DW Catchpoole ◽  
GJ Blair ◽  
GJ Blair
Keyword(s):  
Field Experiment ◽  
Root Zone ◽  
Experimental Period ◽  
Nitrogen Transfer ◽  
Panicum Maximum ◽  
N Fixation ◽  
N Transfer ◽  
Tree Legume ◽  
Tree Roots ◽  
Split Root

In an earlier field experiment in this series, we found no significant transfer of N between Leucaena or Gliricidia and Panicum maximum. The glasshouse study reported here employed a split-root technique, whereby trees of leucaena and gliricidia were grown in boxes with 15N fed to one half of the root system and the transfer of N to the other half of the box was measured by sampling tree and planted grass. Detection of l5N in the grass tops and roots from the unlabelled half of the box was used to indicate N transfer from the tree roots to the grass. Transfer of labelled N to the grass amounted to 4.1% in the first 6 week period when 15N was being injected into the tree root zone. A harvest of the tree and grass was made at 6 weeks and both allowed to regrow for a further 6 weeks with no further addition of l5N. Over the entire 12 week experimental period 7.6% of the labelled N from the tree was transferred to the grass. The low proportion of N transferred from tree legume to the grass in this experiment, where herbage was cut and removed, is similar to the findings in the earlier field experiment and indicates that, in such a system, little direct beneficial effect of N fixation would be expected in an understorey grass or food crop.

scholarly journals The 15N natural abundance technique to assess the potential of biological nitrogen fixation (BNF) in some important C4 grasses

2017 ◽  
Vol 11 (12) ◽  
pp. 1559-1564 ◽  
Author(s):  
Eric Xavier de Carvalho ◽  
◽  
Rômulo Simões Cezar Menezes ◽  
Ana Dolores Santiago de Freitas ◽  
Everardo Valadares de Sá Barretto Sampaio ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Biological Nitrogen Fixation ◽  
15N Natural Abundance ◽  
Natural Abundance ◽  
C4 Grasses ◽  
Biological Nitrogen
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