13 results

Automatic measurement of surface runoff at the plot scale

Lucas Raimundo Rauber ORCID logo , Dalvan José Reinert ORCID logo , Paulo Ivonir Gubiani ORCID logo , Kelvin Salbego Nunes ORCID logo , Micael Stolben Mallman ORCID logo

10/Feb/2025

ABSTRACT Although the hydrological importance of water infiltration into the soil and surface runoff is well known, manual measurement of these processes, especially at the plot and hillslope scales, is laborious and requires a trained team. This study aimed to develop prototypes with the tipping bucket principle for the automatic monitoring of surface runoff at a plot scale (14.5 × 3 m). In total, 18 prototypes were built and installed in an experiment with different soil covers. Aspects of the […]

Parameters of infiltration models affected by the infiltration measurement technique and land-use

Gülay Karahan ORCID logo , Yakov Pachepsky ORCID logo

01/Jun/2022

ABSTRACT The measurement method (MM) and the land-use (LU) are two soil structure-related attributes that are available in infiltration experiments. This study aims to hypothesize that measurement technique and land-use might be good predictors of the performance of infiltration parameter values and models. The Soil Water Infiltration Global (SWIG), which includes about 5000 experiments worldwide and assembled in the Institute of Agrosphere in Jülich, Germany, was used. Except for the known properties such as texture, measurement method, and land-use, changes […]

Visual Abstract

Changes in physical properties of a red oxisol and of soybean yield under no-tillage affected by chisel plow types

Vitor Cauduro Girardello, Telmo Jorge Carneiro Amado, Rodrigo da Silveira Nicoloso, Tiago de Andrade Neves Hörbe, Ademir de Oliveira Ferreira, Fabiano Mauricio Tabaldi, [...]

01/Dec/2011

Soil compaction at high intensity degrees is a hardly reversible process in the no-till system (NT), mainly in clayey soils. Generally, its occurrence in croplands is often irregular and restricted to areas with a previous history of pressures associated to intensive traffic of agricultural machineries. The purpose of this study was to investigate changes in soil physical properties of a red Oxisol with clayey texture (450 g kg-1) and soybean yield, caused by two site-specific chisels and conventional (random) chisel […]

Physical properties of a typic paleudalf under long-term no-tillage and cropping systems

Mastrângello Enívar Lanzanova, Flávio Luiz Foletto Eltz, Rodrigo da Silveira Nicoloso, Telmo Jorge Carneiro Amado, Dalvan José Reinert, Marta Rodrigues da Rocha

01/Aug/2010

No-tillage associated to cover crops may maintain soil quality, improving or preserving favorable soil physical conditions for plant growth. This study assessed soil bulk density, porosity, penetration resistance, and water infiltration of a PALEUDALF, in the Experimental Area of the Soil Science Department of the Federal University of Santa Maria, in Santa Maria, RS, Brazil, in an experiment started in 1991, with the following crop successions and rotations: (1) Corn/Soybean – Jackbean – MFP; (2) Bare soil – SDES; (3) […]

Soil water dynamics related to the degree of compaction of two brazilian oxisols under no-tillage()

Vanderlei Rodrigues da Silva, José Miguel Reichert, Dalvan José Reinert, Edson Campanhola Bortoluzzi

01/Oct/2009

Soil water properties are related to crop growth and environmental aspects and are influenced by the degree of soil compaction. The objective of this study was to determine the water infiltration and hydraulic conductivity of saturated soil under field conditions in terms of the compaction degree of two Oxisols under a no-tillage (NT). Two commercial fields were studied in the state of Rio Grande do Sul, Brazil: one a Haplortox after 14 years under NT; the other a Hapludox after […]

Interrelation of underground plant biomass with soil aggregate stability and rainfall erosion of a soil under different managements

Leandro Bochi da Silva Volk, Neroli Pedro Cogo

01/Aug/2008

Increasing underground plant biomass and soil aggregate stability by application of adequate management practices enhances the quality in terms of water infiltration and erosion resistance. Based on this premise, an erosion study using simulated rainfall was carried out in the field, at an experimental station of the Universidade Federal do Rio Grande do Sul – EEA/UFRGS), in Eldorado do Sul, Rio Grande do Sul State, Brazil, in the summer of 2003/2004, in a 7.5 year soil management experiment. The purpose […]

Efficiency of mechanical and biological chiseling in the improvement of physical attributes of a heavy clay oxisol and the increment of soybean yield

Rodrigo da Silveira Nicoloso, Telmo Jorge Carneiro Amado, Sérgio Schneider, Mastrângello Enívar Lanzanova, Vitor Cauduro Girardello, Jardes Bragagnolo

01/Aug/2008

Compaction is one of the main causes of yield decreases in agricultural soils. Mechanical chiseling has been suggested to reduce soil compaction in long-term no-tillage systems. Another option to alleviate soil compaction is the use of cover crops, such as forage radish, with a well-developed tap root system and the capacity of growing into soil compacted layers, forming stable biopores and improving the soil physical properties. This study aimed to evaluate the efficiency of a mechanical (chisel plow) and biological […]

Vertical Mulching and water management in no tillage system

Sandra Maria Garcia, Afranio Almir Righes

01/Apr/2008

Intensive soil mobilization in the conventional tillage system has caused soil structure degradation, soil compaction below the arable layer, and decreased macroporosity. These changes resulted in reduced soil water infiltration rate and increased runoff, soil erosion and sedimentation in rivers and reservoirs. In the no tillage system the water erosion from the soil surface is practically controlled, and the terraces were eliminated by the farmers. Nevertheless, the surface flow is higher than it was in the conventional tillage system. With […]

A software to calculate soil hydraulic conductivity in internal drainage experiments (SHC, Version 2.00)

Durval Dourado Neto, Klaus Reichardt, Adriana Lúcia da Silva, Osny Oliveira Santos Bacchi, Luis Carlos Timm, Júlio César Martins Oliveira, [...]

01/Oct/2007

A software for the calculation of unsaturated soil hydraulic conductivity K(q) is presented for commonly used methods found in the literature, based on field experiments in which a soil profile is submitted to water infiltration followed by internal drainage. The software is available at: dourado@esalq.usp.br.

Chiseling in no-tillage system as soil and water conservation practice

Rodrigo Kurylo Camara, Vilson Antonio Klein

01/Oct/2005

No tillage (NT) is a proven and efficient soil management practice used to reduce soil erosion, minimizing soil losses. However, the absence of soil movement associated with traffic of heavy machinery cause changes in the soil structure, which combined with low surface roughness, can affect water dynamics by reducing the water infiltration rate. Our aim was to evaluate changes in soil properties under NT and chiseling in no tillage (CNT), as well as the effect of distinct planter furrow openers […]

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