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14 results on '"Bossolani, João w."'

6. Modulation of the soil microbiome by long-term Ca-based soil amendments boosts soil organic carbon and physicochemical quality in a tropical no-till crop rotation system

Author

Bossolani, João W., Crusciol, Carlos A.C., Leite, Márcio F.A., Merloti, Luis F., Moretti, Luiz G., Pascoaloto, Isabô M., Kuramae, Eiko E., Ecology and Biodiversity, Sub Ecology and Biodiversity, Ecology and Biodiversity, Sub Ecology and Biodiversity, Microbial Ecology (ME), Universidade Estadual Paulista (Unesp), Netherlands Institute of Ecology (NIOO-KNAW), Utrecht University, and Universidade de São Paulo (USP)

Subjects
Soil Science, complex mixtures, Microbiology, No-till farming, Soil retrogression and degradation, Soil organic matter transformation, Plan_S-Compliant_TA, pH, Soil organic matter, fungi, Fungal community, No-till system, 04 agricultural and veterinary sciences, Soil carbon, Long-term field experiment, Crop rotation, Soil quality, Soil conditioner, Agronomy, international, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Environmental science, Bacterial community, Soil fertility, Tropical soil, SOLO TROPICAL
Abstract

Made available in DSpace on 2021-06-25T10:24:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-05-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Nederlandse Organisatie voor Wetenschappelijk Onderzoek Unsustainable agricultural management practices such as non-conservationist tillage and overuse of fertilizers result in soil acidity and, in turn, soil degradation due to reduced carbon (C) concentrations and nutrient availability and increased aluminum toxicity. Application of lime (L) and phosphogypsum (PG) can overcome these constraints and improve soil quality, but the long-term effects of these amendments on both abiotic and biotic soil properties are not known, particularly when applied in combination. Here, we evaluated the effects of L (acidity corrective), PG (soil conditioner), and their combination (LPG) on soil organic matter (SOM) transformations, soil chemical and physical properties, and microbiome assembly in a long-term experiment under a no-till crop rotation system in a tropical soil. The Ca-based soil amendments increased C concentrations (labile and stable fractions), improved soil physicochemical properties, and changed the associations between several bacterial and fungal groups. Contrary to expectations, the acidic soil amended with PG exhibited greater number of significant shifts in the bacterial community than soil amended with L or LPG, as well as higher soil bulk density. By contrast, the fungal community underwent greater shifts in soil amended with L or LPG, which had higher macroporosity. L and LPG amendment shaped the fungal community and rearranged the SOM fractions at similar rates, suggesting an essential role of the altered fungi in SOM transformation. In addition, combining L with PG increased the relevance of many low-abundance microorganisms, especially fungi, compared with the control, indicating an increase in their ecological role in the soil. Finally, by applying general joint attribute modeling and sensitivity analysis, we determined that soil fertility increased most in LPG-amended soil, as the ensuing changes in the bacterial and fungal communities resulted in improved SOM fractions, soil physical characteristics and, ultimately, soil quality. College of Agricultural Sciences São Paulo State University (UNESP) Department of Crop Science Netherlands Institute of Ecology (NIOO-KNAW) Department of Microbial Ecology Ecology and Biodiversity Institute of Environmental Biology Utrecht University, Padualaan 8 Luiz de Queiroz College of Agriculture (ESALQ) University of São Paulo (USP) College of Agricultural Sciences São Paulo State University (UNESP) Department of Crop Science FAPESP: 2018/11063-7 FAPESP: 2019/12764-1 Nederlandse Organisatie voor Wetenschappelijk Onderzoek: 870.15.022

Published
2021

8. Modulation of the soil microbiome by long-term Ca-based soil amendments boosts soil organic carbon and physicochemical quality in a tropical no-till crop rotation system

Author

Ecology and Biodiversity, Sub Ecology and Biodiversity, Bossolani, João W., Crusciol, Carlos A.C., Leite, Márcio F.A., Merloti, Luis F., Moretti, Luiz G., Pascoaloto, Isabô M., Kuramae, Eiko E., Ecology and Biodiversity, Sub Ecology and Biodiversity, Bossolani, João W., Crusciol, Carlos A.C., Leite, Márcio F.A., Merloti, Luis F., Moretti, Luiz G., Pascoaloto, Isabô M., and Kuramae, Eiko E.

Published
2021

9. Upland rice intercropped with forage grasses in an integrated crop-livestock system: Optimizing nitrogen management and food production

Author

Crusciol, Carlos A.C., Momesso, Letusa, Portugal, José R., Costa, Claudio H.M., Bossolani, João W., Costa, Nídia R., Pariz, Cristiano M., Castilhos, André M., Rodrigues, Vitor A., Costa, Ciniro, Franzluebbers, Alan J., Cantarella, Heitor, Crusciol, Carlos A.C., Momesso, Letusa, Portugal, José R., Costa, Claudio H.M., Bossolani, João W., Costa, Nídia R., Pariz, Cristiano M., Castilhos, André M., Rodrigues, Vitor A., Costa, Ciniro, Franzluebbers, Alan J., and Cantarella, Heitor

Abstract

Intercropping upland rice with forage grasses is a potential strategy for enhancing the sustainability of agriculture in the tropical region by increasing food production, land use per unit area, nitrogen (N) cycling, and profitability. However, little is known about the appropriate N management and N use efficiency of upland rice in these complex systems. Thus, our aim was to verify the feasibility of intercropping upland rice with tropical forage grasses combined with different N management applications at sowing and sidedressing. A field experiment was carried out in three growing seasons with three intercropping systems (monocropped upland rice, upland rice intercropped with palisade grass, and upland rice intercropped with guinea grass) combined with six N applications to upland rice [0−0 (control), 100−0, 80−20, 50−50, 20−80, and 0−100 kg N ha−1 at sowing-sidedressing]. Dry matter (DM) and accumulated N were measured in upland rice and forage grasses. In addition, components of rice yield production, industrial yield, production cost, land equivalent ratio, relative N yield, relative crowding coefficient, aggressivity of upland rice with forage grasses, forage crude protein (CP) concentration, estimated animal stocking rate, and estimated meat production were determined. Despite competition between rice and forage grasses, intercropping systems had superior benefits in terms of production and land use per unit area, N cycling, and profitability compared with monoculture. Forage DM production, CP, estimated animal stocking rate, and estimated meat production increased when N fertilizer was applied at sidedressing to rice (20−80, 50−50 and 0−100 kg N ha−1). Rice intercropped with guinea grass produced a greater amount of biomass, indicating that this forage species may be more advantageous in tropical regions. Net profit, total aboveground biomass, total N content, land equivalent ratio, and relative N yield were greater in intercropping

Published
2021

10. Recovery of 15N fertilizer in intercropped maize, grass and legume and residual effect in black oat under tropical conditions

Author

Costa, Nídia R., primary, Crusciol, Carlos A.C., additional, Trivelin, Paulo C.O., additional, Pariz, Cristiano M., additional, Costa, Ciniro, additional, Castilhos, André M., additional, Souza, Daniel M., additional, Bossolani, João W., additional, Andreotti, Marcelo, additional, Meirelles, Paulo R.L., additional, Moretti, Luiz G., additional, and Mariano, Eduardo, additional

Published
2021
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11. Upland rice intercropped with forage grasses in an integrated crop-livestock system: Optimizing nitrogen management and food production

Author

Crusciol, Carlos A.C., primary, Momesso, Letusa, additional, Portugal, José R., additional, Costa, Claudio H.M., additional, Bossolani, João W., additional, Costa, Nídia R., additional, Pariz, Cristiano M., additional, Castilhos, André M., additional, Rodrigues, Vitor A., additional, Costa, Ciniro, additional, Franzluebbers, Alan J., additional, and Cantarella, Heitor, additional

Published
2021
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