Humic Acid Improves Zn Fertilization in Oxisols Successively Cultivated with Maize–Brachiaria

Morais, Everton Geraldo de; Silva, Carlos Alberto; Jindo, Keiji

doi:10.3390/molecules26154588

Cited by 7 publications

(20 citation statements)

References 32 publications

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“…Fourier-transform infrared (FTIR) spectroscopy revealed the complexation of Zn sulfate by HA through its S and C functional groups. In both oxisols, solution Zn increased due to the combined use of Zn and HA [ 30 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Humic Acid on Soil Physical and Chemical Properties, Microbial Community Structure, and Metabolites of Decline Diseased Bayberry

Ren

Islam

Wang

et al. 2022

IJMS

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In recent years, bayberry decline disease has caused significant damage to the bayberry industry. In order to evaluate whether humic acid can be used to effectively control the disease, this research examined the nutritional growth and fruit quality of bayberry, soil physical and chemical properties, soil microbial community structure, and metabolites. Results indicated that the application of humic acid not only improved the vigor and fruit quality of diseased trees, but also increased the diversity of microbial communities in the rhizosphere soil. A great increase was observed in the relative abundance of bacterial genus Mycobacterium and Crossiella; fungal genus Fusarium and Coniosporium. In contrast, a significant decrease was observed in the relative abundance of bacterial genus Acidothermus, Bryobacter, Acidibacter, fungal genus of Geminibasidium and Mycena. Analysis of redundancies (RDA) for microbial communities and soil characteristics showed that the main four variables, including available nitrogen, phosphorus, potassium, and calcium, had a great effect on the composition of bacterial and fungal communities in bayberry rhizosphere soil at the genus level. The main four variables had a greater effect on bacterial communities than on fungal communities. In addition, ABC transporter, arginine and proline metabolism, galactose metabolism, and glutathione metabolism were significantly affected by humic acid, which changed the content of 81 metabolites including 58 significantly down-regulated metabolites such as isohexonic acid and carinitine, and 23 significantly up-regulated metabolites such as acidic acid, guaninosuccinate, lyxose, 2-monoolein, epicatechin, and pentonolactone. These metabolites also significantly correlated with rhizosphere soil microbiota at the phylum, order, and genus levels. In conclusion, the results demonstrated the role of humic acid on plant growth and fruit quality, as well as rhizosphere soil characteristics, microbiota, and secondary metabolites, which provides novel insights into the control of bayberry decline disease.

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Section: Resultsmentioning

confidence: 99%

Effect of Humic Acid on Soil Physical and Chemical Properties, Microbial Community Structure, and Metabolites of Decline Diseased Bayberry

Ren

Islam

Wang

et al. 2022

IJMS

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“…This was clearly observed in this study for several OMFs (e.g., OMF1, OMF3, and OMF4) (Figure ). Changes in CC aromatic, polysaccharide C–O, carboxylic acid CO, and OH phenolic stretching, as well as on the C–CH 3 group bending and on COOH in alkyl groups are also fingerprints of the formation of Zn-HA complexes. ,, For all OMFs, when a comparison is made with the precursor HA used in the OMFs synthesis, this interaction of Zn-HA was indicative of CC aromatic stretching (Figure ). Also, polysaccharide C–O stretching, carboxylic acid CO stretching, and OH phenolic stretching were important indicators of Zn complexation for OMF1 and OMF2, while COOH in alkyl groups occurred in OMF2 and the C–CH 3 group bending was recorded for OMF3 and OMF4.…”

Section: Discussionmentioning

confidence: 99%

“…Zinc complexation by organic compounds in OMFs decreases Zn adsorption onto soil colloids and is also a suitable strategy to avoid Zn precipitation with different anions, such as phosphate in tropical soils fertilized with P. , Under both circumstances, soil P availability increases; thus, Zn-OMFs may indirectly improve P uptake by plants. The beneficial effects of the interaction of Zn and organic compounds in the production of enhanced-efficiency fertilizers and upon its greater agronomic performance for common bean growth/development has already been reported in Oxisols, a positive effect that is also credited to the gradual release of Zn …”

Section: Introductionmentioning

confidence: 99%

“…In Oxisols cultivated with maize and Brachiaria grass successively grown, when ZnSO 4 was mixed with a humic acid (HA), the efficiency of Zn fertilization in the soil improved when compared with the use of isolated ZnSO 4 , with a subsequent increase in Zn uptake and biomass production of maize and Brachiaria grass being also observed, in part due to complexation of Zn by HA . Thus, this Zn-HA interaction showed to be a great strategy in synthesizing enhanced-efficiency organomineral fertilizers (OMFs), yet there is a lack of studies proposing effective routes for the production of these fertilizers aiming at soil application.…”

Section: Introductionmentioning

confidence: 99%

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Slow-Release Humic Acid-Based Zinc Fertilizers Improve Growth and Nutrition of Maize and Brachiaria Grass Successively Grown in Oxisols

Morais

Silva

Maluf³

et al. 2022

ACS Agric. Sci. Technol.

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Zinc (Zn) fertilization efficiency is often low in Oxisols due to the interaction of Zn with soil constituents and phosphorus (P). When Zn is supplied in soil fertilization as a complex via slow-release organomineral fertilizers (OMFs), it is less prone to react with soil constituents and P, thus increasing the efficiency of Zn supply to crops. However, obtaining effective synthesis routes for the production of enhanced-efficiency Zn-OMFs for Oxisols is still a challenge. In this study, we synthesized Zn-OMFs based on humic acid (HA) components in order to assess features concerning Zn complexation and release kinetics, as well as the agronomic performance of such products on biomass production, and Zn and P nutrition of maize and Brachiaria grass successively grown in two Oxisols with contrasting texture and soil organic matter (OM) content. Infrared analyses indicated that Zn was complexed in OMFs by sulfur and carbon groups, with kinetics studies showing that Zn is gradually released to soil from Zn-OMFs. Consequently, Zn diffusion and initial content in soil solution were reduced in Oxisols. At least one of the OMFs overperformed ZnSO 4 in terms of maize biomass production and Zn shoot accumulation. Moreover, residual effects of OMFs were greater than those of ZnSO 4 in Oxisols for Brachiaria grass cultivated after maize, with increases in biomass production and shoot Zn content varying depending on OMFs and Oxisol properties. A secondary effect of OMFs increasing P availability in the soil and P uptake by maize and Brachiaria grass plants was also noteworthy. Our findings showed that the overall agronomic performance was greater for OMFs when compared with ZnSO 4 , which is likely related to the slow release of nutrients by the synthetized OMFs due to Zn complexation by HA.

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“…As for Zn contents, no differences were observed between the treatments in the first year, but B. ruziziensis and M. pruriens exhibited higher contents of this micronutrient in the second year. Due to the variations found, future studies are necessary to assess the real impact of these cover crops on Zn contents in soil, considering that this is an essential micronutrient for plant growth, and its deficiency in soil represents a global concern, especially in tropical soils, being considered the micronutrient that most commonly limits cassava production [51,52].…”

Section: Soil Chemical Propertiesmentioning

confidence: 99%

Chemical Properties of Soil and Cassava Yield as a Function of Weed Management by Cover Crops in the Amazon Ecosystem

et al. 2022

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Cassava (Manihot esculenta) yields are severely affected by the interference of weed plants. Using cover crops for weed control appears as a sustainable alternative practice because it maintains the soil covered and reduces the need for herbicides. The aim of this study was to assess cassava crop yields and the soil chemical properties as a function of use of cover crops for weed management. Treatments were three cover crops (Brachiaria ruziziensis, Canavalia ensiformis, and Mucuna pruriens), chemical control, mechanical control, and treatment with no weed control. Cover crops reduced the diversity of species and the quantity of individuals of the weed community in cassava cultivation. The treatments with chemical and physical weed control achieved higher yields. The cover crops B. ruziziensis and C. ensiformis increased cassava yields by 30% and 14%, respectively, when compared with the treatment with no control. The cover crops increased the pH, MO, K, Ca, and Mg values when compared with the treatments with chemical and mechanical weed control. Brachiaria ruziziensis and C. ensiformis are recommended as a cover plants in cassava production systems in the Amazon region. The use of cover crops associated with cassava is a sustainable management option because, in addition to the suppressive effect on weeds, cover crops improve the chemical properties of soil, which may contribute to increasing cassava production in the long term.

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Humic Acid Improves Zn Fertilization in Oxisols Successively Cultivated with Maize–Brachiaria

Cited by 7 publications

References 32 publications

Effect of Humic Acid on Soil Physical and Chemical Properties, Microbial Community Structure, and Metabolites of Decline Diseased Bayberry

Effect of Humic Acid on Soil Physical and Chemical Properties, Microbial Community Structure, and Metabolites of Decline Diseased Bayberry

Slow-Release Humic Acid-Based Zinc Fertilizers Improve Growth and Nutrition of Maize and Brachiaria Grass Successively Grown in Oxisols

Chemical Properties of Soil and Cassava Yield as a Function of Weed Management by Cover Crops in the Amazon Ecosystem

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