65 results

Soil physical, chemical and biological properties in Conilon coffee intercropping systems

Joabe Martins de Souza ORCID logo , Fábio Ribeiro Pires ORCID logo , José Ricardo Macedo Pezzopane ORCID logo , Kristhiano Chagas ORCID logo , Alex Favaro Nascimento ORCID logo , José de Oliveira Rodrigues ORCID logo , [...]

25/Mar/2024

ABSTRACT Shaded coffee systems may offer a series of benefits, however, studies on shaded cultivation of Conilon coffee crops are still scarce in the literature. This study aimed to evaluate the soil physical, chemical, and biological properties of two Conilon coffee intercropping systems from southeastern Brazil. Two commercial coffee crops – one shaded by macadamia trees and the other by green dwarf coconut trees – were evaluated according to three treatments: coffee plants in the inter-row of the tree species; […]

Visual Abstract

Agroforestry system improves soil carbon and nitrogen stocks in depth after land-use changes in the Brazilian semi-arid region

Rafael Gonçalves Tonucci ORCID logo , Renato Falconeres Vogado ORCID logo , Rodrigo Dias Silva ORCID logo , Roberto Cláudio Fernandes Franco Pompeu ORCID logo , Melissa Oda-Souza ORCID logo , Henrique Antunes de Souza ORCID logo

06/Mar/2023

ABSTRACT Agroforestry systems have the potential to increase soil organic matter, with effects on soil carbon and nitrogen contents, but information on the application of these systems in semi-arid regions is still scarce. This study aimed to analyze soil carbon and nitrogen stocks in the conversion of native forest from the Caatinga Biome into integrated agriculture systems in the Brazilian semi-arid region. We evaluated the following management systems in the Haplic Inceptisol (Cambissolo Háplico eutrófico): (1) Intercropping area, cultivated with […]

Visual Abstract

Soil macrofauna, mesofauna and microfauna and their relationship with soil quality in agricultural areas in northern Colombia: ecological implications

Yiseth Chamorro-Martínez ORCID logo , Ana Carolina Torregroza-Espinosa ORCID logo , María Inés Moreno Pallares ORCID logo , Diana Pinto Osorio ORCID logo , Amaira Corrales Paternina ORCID logo , Ana Echeverría-González ORCID logo

11/Jul/2022

ABSTRACT Soil fauna is an essential component of the soil ecosystem for maintaining nutrient cycling and biological soil fertility. This study assessed the soil biodiversity (macrofauna, mesofauna, and microfauna) to define strategies for the sustainable management of tropical agricultural soils. The study was carried out in 200 agricultural production units in the Department of Sucre, in northern Colombia. Physicochemical properties (organic matter, nitrogen, phosphorus, and pH) were determined for each soil sample. The Berlesse-Tullgren method was used to determine the […]

Heavy metals and pesticides in soils under different land-use patterns in neotropical high Andean Páramos

Lizeth Manuela Avellaneda-Torres ORCID logo , Andrea Patricia Pinilla Núñez ORCID logo , Laura Daniela Jerez Pérez ORCID logo , Baudilio Acevedo Buitrago ORCID logo

25/Apr/2022

ABSTRACT Páramos are unique strategic ecosystems in the neotropical region, above the upper limit of closed forest and below the lower limit of perpetual snow in the tropical mountains of Central and South America. Their soils are of particular importance for water regulation and carbon storage; however, thousands of peasants develop agricultural activities such as potato cultivation and livestock farming in these areas. This research aimed to evaluate the possible heavy metals contents (arsenic, cadmium, mercury, and lead) and pesticide […]

Visual Abstract

Winter cover crops effects on soil microbial characteristics in sandy areas of Northern Shaanxi, China

Wen Wang ORCID logo , Lu Han ORCID logo , Xiong Zhang ORCID logo

21/Aug/2020

ABSTRACT In sandy areas of Northern Shaanxi, after potato harvest, there are large areas of soil exposed to wind erosion from winter to spring, leading to degradation of soil quality. Planting cover crops in fallow fields is considered effective to improve soil biological properties; however, there is scarce study on the effect of winter cover crops on fallow soils in this region. In the study lasting from 2017 to 2019, four winter cover crops, i.e., alfalfa (AC), sweetclover (SC), winter […]

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Soil compaction effect on black oat yield in Santa Catarina, Brazil

Jadiel Andognini ORCID logo , Jackson Adriano Albuquerque ORCID logo , Maria Izabel Warmling ORCID logo , Juliano Silva Teles ORCID logo , Gisele Barbosa da Silva ORCID logo

16/Jul/2020

ABSTRACT Cultivated soils, when submitted to agricultural practices, tend to compact due to the pressure exerted by agricultural machines and implements, a process that compromises soil quality and system sustainability. Specific properties of each soil, such as particle size and organic matter content, interfere with the process and degree of compaction and, consequently, plant growth. This study aimed to analyze the effect of different degrees of compaction (DC) on soil physical properties and black oat (Avena strigosa Schreb) growth. For […]

Visual Abstract

Abundance and diversity of beetles (Insecta: Coleoptera) in land use and management systems

Alana Cristina Cunha Bernardes ORCID logo , Osmann Cid Conde Oliveira ORCID logo , Raimunda Alves Silva ORCID logo , Patrícia Maia Correia Albuquerque ORCID logo , José Manuel Macário Rebêlo ORCID logo , Jéssica Herzog Viana ORCID logo , [...]

19/Jun/2020

ABSTRACT Soil beetles’ communities are responsible for many ecosystem services, and are very sensitive to environmental changes. Thus, this study aimed to evaluate the abundance and diversity of the soil coleoptera fauna under uses and management and also to identify relationships of the beetle community with soil’s physical and chemical properties. The experiment had six experimental plots set up an Oxisol (Latossolo): corn (CO), soybean (SO), 7-year-old eucalyptus (EI), 4-year-old eucalyptus (EII), preserved Cerrado (PC), and disturbed Cerrado (DC). Soil […]

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Biochemical and Biological Properties of Soil from Murundus Wetlands Converted into Agricultural Systems

Luciene Nunes Barcelos Martins, Flávia Louzeiro de Aguiar Santiago, Marcela Susana Montecchia, Olga Susana Correa, Orivaldo José Saggin Junior, Edicarlos Damacena de Souza, [...]

14/Jun/2019

ABSTRACT The implementation of conservationist systems that improve soil properties and reduce the impacts of the conversion of native areas is fundamental for feasible agricultural exploitation. This study aimed to evaluate the impact on soil biological properties caused by the conversion of murundus fields into agricultural systems and verify the ability of the no-tillage conservation system to recover these properties over the years. Treatments consisted of three agricultural areas subjected to the same management (no-tillage), in a chronosequence (7, 11, […]

Visual Abstract

Soil Biological, Chemical, and Physical Properties After a Wildfire Event in a Eucalyptus Forest in the Pampa Biome

Natielo Almeida Santana, Cedinara Arruda Santana Morales, Diego Armando Amaro da Silva, Zaida Inês Antoniolli, Rodrigo Josemar Seminoti Jacques

17/Jul/2018

ABSTRACT Wildfire events cause considerable environmental disturbance but few studies have examined changes in soil properties due to fire. This study aimed to assess the effect of a wildfire event on chemical, physical, and biological properties of the soil in a eucalyptus forest in the Pampa biome. Part of a seven-year-old eucalyptus forest was affected by a wildfire event that lasted for two days. Soil and plant litter sampling was performed in three areas: in the forest that was not […]

Geochemistry and Spatial Variability of Rare Earth Elements in Soils under Different Geological and Climate Patterns of the Brazilian Northeast

Cinthia Maria Cordeiro Atanázio Cruz Silva, Ronny Sobreira Barbosa, Clístenes Williams Araújo do Nascimento, Yuri Jacques Agra Bezerra da Silva, Ygor Jacques Agra Bezerra da Silva

18/Jun/2018

ABSTRACT Growth in the agricultural and industrial sectors has increased the demand for rare earth elements (REEs) in the production of technological devices and fertilizers. Thus, the accumulation of these elements in the soil has become an environmental concern. Here, we aim to determine the natural contents of REEs in soils derived from different parent materials and under climatic conditions ranging from humid to semi-arid. We then evaluate the influence of major elements and soil properties on the geochemistry of […]

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