Maize productivity in succession to cover crops, nitrogen fertilization and inoculation with Azospirillum brasilense

Júnior, Antônio C. dos Santos; Carvalho, Marco Antônio Camillo de; Yamashita, Oscar Mitsuo; Tavanti, Tauan Rimoldi; Tavanti, Renan Francisco Rimoldi

doi:10.1590/1807-1929/agriambi.v23n12p966-971

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…In this research, it was proved that cover crops positively affect the growth and yield parameters of popcorn maize. It was shown that field pea (CC2) mainly supported chlorophyll synthesis and biomass accumulation in seasons with relatively optimal meteorological conditions, resulting thus in higher grain yield, while in unfavorable seasons, such as 2021, it contributed to greater grain yield achievement, indicating the importance of leguminous CC, i.e., catch CC, for maize productivity ( Santos et al., 2019 ). Marcillo and Miguez (2017) specified that maize yield could be increased up to 33%, after leguminous CC, when zero tillage was used or N fertilization was low.…”

Section: Discussionmentioning

confidence: 99%

Combined effect of cover crops and bio-fertilizer on sustainable popcorn maize production

Dragičević,

Simić,

Dolijanović

et al. 2024

Front. Plant Sci.

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Cover crops play an important role in low-input cropping systems, increasing the use of agro-ecosystem services. Due to the lack of information about the impact of cover crops and bio-fertilizers on popcorn maize (Zea mays everta Sturt.) growth and yield quality, especially the popping volume and nutritive quality, such as concentrations of protein and mineral elements, this research aimed to provide essential information. The interrelation between popcorn maize productivity and quality with important groups of soil microorganisms presents additional novelty. The results demonstrated that field pea is a beneficial cover crop, especially when combined with a bio-fertilizer, supporting the accumulation of maize biomass, chlorophyll, yield potential, and the concentrations of protein, Ca, Mg, Fe, and Zn. In addition, field pea residues promoted N-fixing bacteria, and the number of total microorganisms, especially actinomycetes and decomposing bacteria, which could promote nutrient uptake and grain quality. Residues of cover crop mixtures, common vetch + winter oats and field pea + winter oats, promoted the total number of microorganisms in the soil, and up to the end of vegetation, a greater number of decomposition and ammonification microorganisms were found, especially when the bio-fertilizer was applied, which consequently could support greater maize biomass. Popping volume, as a main trait of popcorn maize, had the highest value in the common vetch + winter oats variant, supporting again the statement that quality traits could be enhanced in sustainable production. Unlike living cover crops, mulch mainly affected soil microbial communities and promoted the development of actinomycetes and cellulolytic microorganisms during the growing season. The results of this research could contribute to the development of sustainable popcorn maize production for improved grain quality. They could also serve as a basis for isolating beneficial soil microorganisms to develop new bio-fertilizers that could improve maize production in synergy with cover crops.

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Section: Discussionmentioning

confidence: 99%

Combined effect of cover crops and bio-fertilizer on sustainable popcorn maize production

Dragičević,

Simić,

Dolijanović

et al. 2024

Front. Plant Sci.

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“…The biochemical determinations made in this study contribute to a better understanding of how auxin induction, culture media, and PGPR inoculation affect the physiology of woody plants. Research lines currently being carried out aim to study the diversity of new isolates of A. brasilense and select bacteria according to their ability to promote plant growth, from native forage, 46,47 cereals, 16,19,44,[48][49][50][51][52][53] fruit trees, 54 microplants, 55 as well as the ability to promote the growth of microalgae. [56][57][58] Other lines of work study the mechanisms and molecules involved in the establishment of plant-microorganism interaction.…”

Section: The Bacterium: Azospirillummentioning

confidence: 99%

Azospirillum sp. and mycorrhizal fungi: key microorganisms in sustainable agriculture

Gabriela,

Horacio,

Basso Valeria

et al. 2023

JABB

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The role and importance of two types of soil microorganisms are highlighted: the bacteria of the Azospirillum genus and mycorrhiza-forming fungi, which establish beneficial interactions with plants and the application of these generates great interest due to the potential and to be considered as these soil microorganisms as a tool in sustainable and agroecological agriculture. The importance of developing biofertilizers with native strains of plant-promoting microorganisms, such as Azospirillum brasilense and mycorrhizal fungi, is also highlighted as a strategy to control diseases and improve the agronomic performance of crops. The development and application of this type of biofertilizers can be considered an important alternative for the partial or total replacement of mineral fertilizers, which would generate great benefits without having a detrimental impact on the environment

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“…The effect of legume cover crops in maize yield was related in a meta-analysis by , in which the yield was 21% higher under cover crop compared to fallow. Santos Júnior et al (2019) showed in an experiment with maize-legumes cover crop rotation that the grain yield improvement provided by legumes cover crop depends on the specie adopted in the succession and can be higher or neutral compared to the treatment without cover crop.…”

Section: Effects Of Cover Crop Rotation Systems In Maize Yield Responsementioning

confidence: 99%

Cover crops affects soil nitrogen fractions and maize responsiveness to nitrogen in the Cerrado region

Dantas

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Cover crops affects soil nitrogen fractions and maize responsiveness to nitrogen in the Cerrado regionNitrogen (N) is the most required nutrient for the major crops and is globally consumed. The soil N dynamic involves losses and transformations, for example, leaching and denitrification, respectively, which makes the N fertilization management more complex and costly. The rational use of N fertilizers is one of the strategies to minimize economic and environmental impacts. The soil potentially mineralizable N estimation, or the readily mineralizable N estimation, can be used in N fertilizer recommendation to account the contribution of the organic N fraction in crop nutrition, adopting a pratical and simple method. Depending on the management, especially in no-tillage systems, which has crop rotation as one of its pillars, the main crop will present a different response to N-fertilizer depending on the previous crop. The study was carried out in a long-term experiment in Cerrado biome with maize as first-crop (rainy season) and leguminous and non-leguminous cover crops as secondcrop (off-season). The evaluations performed were: i) chemical and biochemical indices associated with N mineralization that correlates with maize productions component such as grain yield; (ii) the Illinois Soil Nitrogen Test (ISNT) as a tool to quantify the readily mineralizable N, testing different concentrations of the alcaline extraction, aiming to improve the correlation with maize components production in tropical agroecosystems; (iii) contribution of rotation systems with cover crops on maize yield and the effect in N accumulation in maize compartments (stalk + straw, cob + husk, and grains), N fertilizer recovery and N use efficiency using the 15 N stable isotope technique. The long-term experiment is located in Planaltina-DF in a Typic Haplustox (clayey texture) since 2010, in a randomized block design with subdivided plots, in which the plots are represented by nine cover crops and fallow (control) and subplots are represented by N managements (with or without N topdressing). Soil enzymatic activity and ISNT 0.5 M NaOH were the indices that showed correlation with maize yield. This is an indication that the indices are sensitive to quantify the variation on soil organic N and the maize responsiveness to N, with potential to adopt in N fertilizer recommendation for the crop. There was an increase in maize grain yield in maize-cover crops rotation systems in two seasons (2018/2019 and 2019/2020), but the N accumulation in maize compartments, the 15 N fertilizer recovery and N use efficiency did not differ from the control (fallow). The results shows that the benefits of the introduction of cover crops in rotation with maize are not only related to N cycling and other nutrients, but different ecosystem services that allows an increase in crop yield. The results indicate the potential of adopting indices to estimate readily mineralizable N and the maize response to N fertilization.

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Maize productivity in succession to cover crops, nitrogen fertilization and inoculation with Azospirillum brasilense

Cited by 5 publications

References 14 publications

Combined effect of cover crops and bio-fertilizer on sustainable popcorn maize production

Combined effect of cover crops and bio-fertilizer on sustainable popcorn maize production

Azospirillum sp. and mycorrhizal fungi: key microorganisms in sustainable agriculture

Cover crops affects soil nitrogen fractions and maize responsiveness to nitrogen in the Cerrado region

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