Sampling Position under No-Tillage System Affects the Results of Soil Physical Properties

Analyzing the soil near crop roots may reveal limitations to growth and yield even in a no-tillage system. The purpose of the present study was to relate the chemical and physical properties of soil under a no-tillage system to soybean root growth and plant yield after five years of use of different types of limestone and forms of application. A clayey Oxisol received application of dolomitic and calcitic limestones and their 1:1 combination in two forms: surface application, maintained on the soil surface; and incorporated, applied on the surface and incorporated mechanically. Soil physical properties (resistance to mechanical penetration, soil bulk density and soil aggregation), soil chemical properties (pH, exchangeable cations, H+Al, and cation exchange capacity) and plant parameters (root growth system, soybean grain yield, and oat dry matter production) were evaluated five years after setting up the experiment. Incorporation of lime neutralized exchangeable Al up to a depth of 20 cm without affecting the soil physical properties. The soybean root system reached depths of 40 cm or more with incorporated limestone, increasing grain yield an average of 31 % in relation to surface application, which limited the effect of lime up to a depth of 5 cm and root growth up to 20 cm. It was concluded that incorporation of limestone at the beginning of a no-tillage system ensures a favorable environment for root growth and soybean yield, while this intervention does not show long-term effects on soil physical properties under no-tillage. This suggests that there is resilience in the physical properties evaluated.

Download Full-text

Implications of agricultural management on the epigeic fauna and soil physical properties of a clayey Oxisol

Revista CERES ◽

10.1590/0034-737x201865050009 ◽

2018 ◽

Vol 65 (5) ◽

pp. 443-449 ◽

Cited By ~ 2

Author(s):

Lidiane Martins da Costa ◽

Marta Sandra Drescher

Keyword(s):

Land Use ◽

Physical Properties ◽

Crop Production ◽

Species Abundance ◽

Total Porosity ◽

Biological Properties ◽

Soil Physical Properties ◽

No Tillage ◽

Pampa Biome ◽

Tillage System

ABSTRACT The intensive use of land based on non-conservation practices contributes to the reduction of soil quality. In this sense, the objective of this work was to evaluate the influence of farming systems on clayey Oxisol in the northwest of the state of Rio Grande do Sul on the epigeic fauna and on the soil physical properties. The treatments were composed of land use with Native field, Pasture, Transition, Crop and livestock integration, No-tillage and No-tillage system. The epigeic fauna was evaluated by the installation of seven traps per treatment. The physical properties of density, total porosity, microporosity, macroporosity and soil resistance to penetration were evaluated in samples with undisturbed structure at the 0- 0.07, 0.07-0.15 and 0.15- 0.22m depths, with four replicates. The results indicated that land use only for crop production reduced the abundance of organisms in comparison to the crop-livestock integration. The conversion of the Pampa Biome to the crop system altered its soil physical and biological properties with the transition area presenting intermediate characteristics to both environments. Grazing in the remaining areas of the Pampa Biome, without native field improvement strategies, reduced species abundance and richness. No-tillage and No-tillage system promoted the compaction of the 0.07 -0.15 m layer in a clayey Oxisol.

Download Full-text

ATRIBUTOS FÍSICOS DO SOLO E DESENVOLVIMENTO DO ALGODOEIRO EM SEMEADURA DIRETA / SOIL PHYSICAL PROPERTIES AND DEVELOPMENT OF COTTON CROP IN NO-TILLAGE SYSTEM

Revista Brasileira de Engenharia de Biossistemas ◽

10.18011/bioeng2014v8n1p73-83 ◽

2014 ◽

Vol 8 (1) ◽

pp. 73

Author(s):

S. Ferrari ◽

E. Furlani Junior ◽

J.V. Ferrari ◽

P.F. Vargas ◽

R. Montanari ◽

...

Keyword(s):

Physical Properties ◽

Soil Physical Properties ◽

No Tillage ◽

Cotton Crop ◽

Tillage System

Download Full-text

Crambe oil yield and soil physical properties responses to no-tillage, cover crops and chiseling

Industrial Crops and Products ◽

10.1016/j.indcrop.2020.113174 ◽

2021 ◽

Vol 161 ◽

pp. 113174

Author(s):

Deonir Secco ◽

Doglas Bassegio ◽

Bruna de Villa ◽

Araceli Ciotti de Marins ◽

Luiz Antônio Zanão Junior ◽

...

Keyword(s):

Physical Properties ◽

Cover Crops ◽

Soil Physical Properties ◽

Oil Yield ◽

No Tillage ◽

Crambe Oil

Download Full-text

Stabilization of soil hydraulic properties under a long term no-till system

Revista Brasileira de Ciência do Solo ◽

10.1590/s0100-06832014000400024 ◽

2014 ◽

Vol 38 (4) ◽

pp. 1281-1292 ◽

Cited By ~ 11

Author(s):

Luis Alberto Lozano ◽

Carlos Germán Soracco ◽

Vicente S. Buda ◽

Guillermo O. Sarli ◽

Roberto Raúl Filgueira

Keyword(s):

Hydraulic Conductivity ◽

Physical Properties ◽

Hydraulic Properties ◽

Sandy Loam ◽

Soil Physical Properties ◽

Water Retention Curve ◽

Mean Values ◽

Tillage System ◽

Crop Sequence

The area under the no-tillage system (NT) has been increasing over the last few years. Some authors indicate that stabilization of soil physical properties is reached after some years under NT while other authors debate this. The objective of this study was to determine the effect of the last crop in the rotation sequence (1st year: maize, 2nd year: soybean, 3rd year: wheat/soybean) on soil pore configuration and hydraulic properties in two different soils (site 1: loam, site 2: sandy loam) from the Argentinean Pampas region under long-term NT treatments in order to determine if stabilization of soil physical properties is reached apart from a specific time in the crop sequence. In addition, we compared two procedures for evaluating water-conducting macroporosities, and evaluated the efficiency of the pedotransfer function ROSETTA in estimating the parameters of the van Genuchten-Mualem (VGM) model in these soils. Soil pore configuration and hydraulic properties were not stable and changed according to the crop sequence and the last crop grown in both sites. For both sites, saturated hydraulic conductivity, K0, water-conducting macroporosity, εma, and flow-weighted mean pore radius, R0ma, increased from the 1st to the 2nd year of the crop sequence, and this was attributed to the creation of water-conducting macropores by the maize roots. The VGM model adequately described the water retention curve (WRC) for these soils, but not the hydraulic conductivity (K) vs tension (h) curve. The ROSETTA function failed in the estimation of these parameters. In summary, mean values of K0 ranged from 0.74 to 3.88 cm h-1. In studies on NT effects on soil physical properties, the crop effect must be considered.

Download Full-text