PDF | The corn crop is one of the most cultivated in the world and of corn crop, in function of foliar Azospirillum brasilense inoculation, associated with nitrogen doses. capacidade de expansão do grão em milho-pipoca. Inoculação de Azospirillum brasilense e doses de nitrogênio em milho para In this context, the use of bacteria of the genus Azospirillum brasilense appears. inoculation with Rhizobium tropici in the absence of N fertilization was efficient Crescimento do milho em resposta a Azospirillum brasilense.
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Inoculation molho Azospirillumassociated with nitrogen fertilization in maize. However, there were significant differences among control and inoculation treatments Table 4. To determine dry biomass, maize plants were cut off close to the soil. Environmental and physiological advances Efficiency of inoculant with Azospirillum brasilense on the growth and yield of second-harvest maize 1. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.
The lack of response to leaf-spray inoculation may be related to the fact that this treatment was only applied 20 days after sowing. Use of a chlorophyll meter at the early dent stage of corn to evaluate N sufficiency. However, it still presents a significant yield increase Figure 3. The height of ear insertion and total plant height were not influenced by the factors under azspirillum.
Inoculation with Azospirillum, associated with nitrogen fertilization in maize
How to cite this article. When the harvest date was reached, at days after sowing June 28th,three cobs along a meter in the four central lines were randomly sampled in each plot to determine the length and 1,grain weight, as well as yield. Services on Demand Journal. Inoculation with Azospirillum, associated with nitrogen fertilization in maize 1. Significant effect was observed with respect to inoculation with Azospirillum brasilense. There is also a wide variety of results in the literature regarding the relationship between inoculation and nitrogen fertilization.
Two experiments were aospirillum in the field on the summer harvest.
Inoculation of Azospirillum spp. The biological nitrogen fixation is an alternative to supply the nitrogen needed for maize. On average, both the seed and leaf-spray inoculated treatments showed longer ear lengths, in comparison with the non-inoculated control. I Agronomist Engineer, Doctor Science. Barros Netowhen working with maize subjected to nitrogen fertilization levels and kg ha -1 of N and inoculation of product based on A. Biomass was determined in leaves, stalks and ears collected from a linear meter of each plot.
Nitrogen fertilization at sowing has increased leaf N content; however, when complemented by inoculation, it caused azospirllum reduction of such a variable. However, in the second harvest, the cover fertilization in association with inoculation reduced yield.
Studies have shown that Azospirillum stimulates the growth and yield of several plant species, many of which have great agronomic and ecological relevance Hungria et al.
The area was prepared by eliminating invasive plants through the application of 1, g ha -1 of glyphosate. In addition, nitrogen topdressing fertilization, associated with the use of inoculation, has reduced yield and the shoot dry biomass production. The inoculation of seeds with Azospirillum prior to sowing resulted in increased mass.
The parameters assessed included: These bacteria improve conditions for development of root system as they synthesize phytohormones, allowing absorption of more water and nutrients, as well azospirillhm providing more tolerance against drought and salinity stresses Bashan et al.
Crop Science Efficiency of inoculant with Azospirillum brasilense on the growth and yield of second-harvest maize 1. Mean cob length cm was determined using a ruler to measure from azoapirillum cob base to its tip.
The leaf-inoculant spray was comprised of 5 doses mL of the inoculant diluted in 50 L ha -1 of water. Several reports in the literature discuss the capacity of Azospirillum to produce phytohormones that stimulate root growth in several plant species Dobbelaere et al.
Within this group, the genus Azospirillum stands out. For grain yield, a diminished response of inoculation was observed in relation to the control treated with increasing N doses. According to Hungria et al. Each experimental plot consisted of four rows spaced by 0.
Azospirilum inoculation increases maize height and stem diameter, chlorophyll content and dry biomass weight for the shoot and root system, as well as 1,grain weight, ear azospiriplum and grain yield, when the maize is inoculated via seed or leaf.
It was found that, both for shoot dry biomass millho for yield, the inoculation with Azospirillum spp. For example, according to Moreira et al. According to Hartmannthe efficiency of biological fixation in Azospirillum spp.
Azospirillum brasilense – plant genotype interactions modify tomato response to bacterial diseases, and root and foliar microbial communities.