INBA   12521
INSTITUTO DE INVESTIGACIONES EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Soybean rizobia inoculation has a positive contribution to Argentine grain yields
Autor/es:
PICCINETTI, CARLOS FABIAN; DIAZ ZORITA, MARTIN; ARIAS, NORMA; VENTIMIGLIA, L A; PERTICARI, ALEJANDRO
Lugar:
Long Beach, CA
Reunión:
Congreso; ASA-CSSA-SSSA- International Annual Meetings; 2010
Institución organizadora:
ASA-CSSA-SSSA
Resumen:
In Argentina, the request of microbiological products that enhances crop nutrition
and growth is increasing. It is estimated that approximately 70% of the soybean
crops are inoculated with rizobia providing not only better N nutrition but also
greater grain yields. The objective of the study was to quantify the contribution of
the present use of Bradyrhizobium japonicum on soybean production in soybean
rotated lands. During the 2007/8 and 2008/9, 28 experimental sites were established
comparing untreated control and seed inoculated treatments using a single
experimental formulation the National Institute of Agricultural Technology (INTA)
providing more than 105 units of rizobia forming colonies. In each location, the
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
rotated lands. During the 2007/8 and 2008/9, 28 experimental sites were established
comparing untreated control and seed inoculated treatments using a single
experimental formulation the National Institute of Agricultural Technology (INTA)
providing more than 105 units of rizobia forming colonies. In each location, the
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
rotated lands. During the 2007/8 and 2008/9, 28 experimental sites were established
comparing untreated control and seed inoculated treatments using a single
experimental formulation the National Institute of Agricultural Technology (INTA)
providing more than 105 units of rizobia forming colonies. In each location, the
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
Bradyrhizobium japonicum on soybean production in soybean
rotated lands. During the 2007/8 and 2008/9, 28 experimental sites were established
comparing untreated control and seed inoculated treatments using a single
experimental formulation the National Institute of Agricultural Technology (INTA)
providing more than 105 units of rizobia forming colonies. In each location, the
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
5 units of rizobia forming colonies. In each location, the
nodulation (number and dry weight) was evaluated at v4 and r5 growing stages, the
shoot dry matter at r6 and grain production and yield components (single grain
weight) at physiological maturity. The N derived from the biological N fixation
process was also evaluated using the natural 15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.
15N abundance method. In each site the
experimental design was completely randomize block with 4 replications and plots
with 5 rows of 5 m in length and distanced 0.52 m each. The results showed greater
nodule biomass and grain yields in the inoculated crops. The mean grain yields of
the inoculated crops relative to the control without inoculation varied between 8 and
11% in the 2008/9 and the 2007/8 growing seasons, respectively. These results
confirm the generalized recommendation of the application of rizobia containing
inoculants for soybean production in rotated lands.