19 results

Cover crops influence the physical hydric quality of a tropical sandy soil under no-tillage cotton cropping

Pedro Luan Ferreira da Silva ORCID logo , Cássio Antonio Tormena ORCID logo , Fábio Rafael Echer ORCID logo , Camila Pereira Cagna ORCID logo , Caroline Honorato Rocha ORCID logo , Renato Paiva de Lima ORCID logo

25/Nov/2024

ABSTRACT Reduced stability and structural resilience expose sandy soils to physical degradation under intensive production systems. This study aimed to evaluate the influence of different cover crops (CC) under no-tillage system (NTS) cotton cropping, grown either individually or in combination, on the soil physical quality (SPQ) of a sandy loam Oxisol (Latossolo) in southeastern Brazil. To quantify the effects of CC on soil physical quality indicators, an experiment in randomized blocks design was implemented with the treatments: CC1: single cultivation […]

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Is Structural Quality as Assessed by the “Profil Cultural” Method Related to Quantitative Indicators of Soil Physical Quality?

Rafaela Watanabe, Cássio Antonio Tormena, Maria de Fátima Guimarães, João Tavares, Ricardo Ralisch, Julio Franchini, [...]

01/Feb/2018

ABSTRACT Soil and crop management systems change the soil structure, thereby affecting soil quality. The “profil cultural” method (PCM) has been used to identify the effects of management systems on soil structure; however, few studies relate the structures identified by the PCM to quantitative indicators of soil structural quality. This study aimed to quantify soil structures using the PCM and relate these structures to bulk density (Bd), critical bulk density (Bdc), soil aeration capacity (εa), least limiting water range (LLWR), […]

Hydrophysical Quality of an Oxisol and Sugarcane Yield in Chisel Plow-Based Sugarcane Ratoon Management

Marcos Vinicius Garbiate, Antonio Carlos Tadeu Vitorino, Eber Augusto Ferreira do Prado, Munir Mauadand, Douglas Martins Pereira Pellin

28/Jun/2016

ABSTRACT Mechanical harvesting has increasingly been used in sugarcane production units, and it has often resulted in reduced structural quality of the soil due to soil compaction caused by machine traffic. Thus, sugarcane ratoon crops have often been chiseled to overcome such a problem. The aim of the current study is to assess some physical properties of a Latossolo Vermelho Distroférrico (Rhodic Hapludox) that was chiseled after the third harvest in a sugarcane ratoon crop. The study was conducted in […]

Soil Chemical and Physical Properties on an Inceptisol after Liming (Surface and Incorporated) Associated with Gypsum Application

Delcio Rudinei Bortolanza, Vilson Antonio Klein

17/Jun/2016

ABSTRACT Inceptsoils have high aluminum contents, and amendments are required to ensure a satisfactory crop development. Liming is efficient in neutralizing Al3+, but when applied to the topsoil its action is restricted to the surface layers, and sometimes lime incorporation into the soil is recommendable. However, tillage may negatively alter physical soil properties. Thus, gypsum could be an alternative to increase Ca2+ levels and reduce Al saturation in deeper layers, without requiring tillage. An experiment was initiated in 2010, to […]

SWEET SORGHUM PERFORMANCE AFFECTED BY SOIL COMPACTION AND SOWING TIME AS A SECOND CROP IN THE BRAZILIAN CERRADO

Wellingthon da Silva Guimarães Júnnyor, Eduardo da Costa Severiano, Alessandro Guerra da Silva, Wainer Gomes Gonçalves, Renata Andrade, Brendow Roberto Rodrigues Martins, [...]

01/Dec/2015

ABSTRACT Increasing attention has recently been given to sweet sorghum as a renewable raw material for ethanol production, mainly because its cultivation can be fully mechanized. However, the intensive use of agricultural machinery causes soil structural degradation, especially when performed under inadequate conditions of soil moisture. The aims of this study were to evaluate the physical quality of a Latossolo Vermelho Distroférrico (Oxisol) under compaction and its components on sweet sorghum yield forsecond cropsowing in the Brazilian Cerrado (Brazilian tropical […]

Grazing Height of Brachiaria and Stocking Rate Limited by Soil Physical Properties Three Years Into an Integrated Soybean Crop-Livestock System

Jonez Fidalski, Sérgio José Alves

01/May/2015

Management of forage grazing height by cattle may compromise soil physical properties. The objective of this study was to evaluate the influence of grazing height of brachiaria (Urochloa ruziziensis) and the average stocking rate, after three years into an integrated soybean crop-livestock system, in the physical attributes of a Haplorthox (Rhodic Ferralsol). A randomized complete block experimental design with three replications was used. Five treatments were evaluated in 1 ha experimental plots: grazing heights of 10, 20, 30, and 40 […]

Chemical and physical-hydric characterisation of a red latosol after five years of management during the summer between-crop season

José Fausto Guimarães Silva, Eduardo da Costa Severiano, Kátia Aparecida de Pinho Costa, Vinícius de Melo Benites, Wellingthon da Silva Guimarães Júnnyor, José Carlos Bento

01/Oct/2014

Agricultural production systems that include the production of mulch for no-tillage farming and structural improvement of the soil can be considered key measures for agricultural activity in the Cerrado region without causing environmental degradation. In this respect, our work aimed to evaluate the chemical and physical-hydric properties of a dystrophic Red Latosol (Oxisol) in the municipality of Rio Verde, Goias, Brazil, under different soil management systems in the between-crop season of soybean cultivation five years after first planting. The following […]

Effect of cropping systems in no-till farming on the quality of a Brazilian Oxisol

Getulio de Freitas Seben Junior, José Eduardo Corá, Rattan Lal

01/Aug/2014

The no-till system with complex cropping sequences may improve the structural quality and carbon (C) sequestration in soils of the tropics. Thus, the objective of this study was to evaluate the effects of cropping sequences after eight years under the no-till system on the physical properties and C sequestration in an Oxisol in the municipality of Jaboticabal, Sao Paulo, Brazil. A randomized split-block design with three replications was used. The treatments were combinations of three summer cropping sequences – corn/corn […]

Influence of the grazing height of ryegrass and oat on the physical properties of an Oxisol after seven years of crop-livestock system

Wagner Henrique Moreira, Cássio Antonio Tormena, Edner Betioli Junior, Leonardo Pim Petean, Sérgio José Alves

01/Aug/2014

The pressure applied by animal hooves can lead to soil surface compaction in a crop-livestock system (CLIS), with effects on soil physical quality. The hypothesis of this study was that the trampling of animals as a result of grazing on oat and ryegrass crops in a Latossolo Vermelho distroférrico (Oxisol) under no-tillage in a CLIS degrades soil physical quality. The aim of this study was to evaluate the effect of different grazing heights on soil bulk density (BD), total porosity […]

Soil management systems in the recovery of a degraded pasture in Rondônia

Afrânio Ferreira Neves Junior, Alvaro Pires da Silva, Norberto Cornejo Noronha, Carlos Clemente Cerri

01/Feb/2013

In the Amazon region, pastures provide a satisfactory grass yield in the first years. Over time, overgrazing by livestock, the lack of pasture maintenance and choice of regionally unsuitable forage species can lead to soil degradation. The objective of this study was to evaluate the effect of different soil management systems on some soil physical properties of a Red-Yellow Oxisol (LVA) under degraded pasture, in the State of Rondônia (RO). The soil management systems were T = control; G = […]

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