No-Tillage Agriculture of Korean-Style on Recycled Ridge Ⅱ. Changes in Physical Properties :Water-Stable Aggregate, Bulk density, and Three Phase Ratio to Retain Water at Plastic Film Greenhouse Soil in No-Tillage System

2016 ◽  
Vol 24 (4) ◽  
pp. 719-733
Author(s):  
Seung-Koo Yang ◽  
◽  
Gil-Ho Shin ◽  
Sun-Kook Kim ◽  
Hee-Kwon Kim ◽  
...  
Keyword(s):  
Physical Properties ◽  
Bulk Density ◽  
Phase Ratio ◽  
Plastic Film ◽  
No Tillage ◽  
Greenhouse Soil ◽  
Water Stable Aggregate ◽  
Three Phase ◽  
Tillage System ◽  
Stable Aggregate

scholarly journals Ferralsol Porosity and Density After Mechanical Scarification and Crop Rotation Systems

2020 ◽  
Vol 12 (10) ◽  
pp. 316
Author(s):  
Monica C. Sustakowski ◽  
Edleusa P. Seidel ◽  
Renata F. Barabasz ◽  
Rayssa H. da Silva ◽  
Willian dos Reis ◽  
...  
Keyword(s):  
Experimental Design ◽  
Physical Properties ◽  
Bulk Density ◽  
Crop Rotation ◽  
Total Porosity ◽  
Soil Porosity ◽  
No Tillage ◽  
Tillage System ◽  
Soil Preparation ◽  
Lower Bulk Density

With intensive cultivation and the lack of crop rotation, the no-tillage system has been showing compacted areas. For its reduction, mechanical scarification and crop rotation has been recommended. Thus, the present study aimed to evaluate in a no-tillage system the effect of mechanical scarification and crop rotation systems on soil porosity and density after 18 months. The experimental design used was randomized blocks in a split-plot scheme, with four replications. The main plots consisted of maintaining the no-tillage system and minimal soil preparation with a chisel, carried out before the cultivation of cover plants. The subplots were composed of different plant species grown in winter: wheat, consortium of forage pea + black oat and consortium of black oat + forage turnip. Both were succeeded by cultivation of soy and lupin. Macroporosity, microporosity, total porosity and bulk density were evaluated. After 18 months, the scarified soil showed a higher bulk density (0.10-0.15 m layer) when compared to the no-tillage system, demonstrating that this isolated decompression alternative does not improve the physical properties of the soil. The area in succession to oat + turnip/soybean/lupin showed lower bulk density.

scholarly journals Injection of liquid swine slurry and effects on properties of a Nitossolo Vermelho

2018 ◽  
Vol 53 (4) ◽  
pp. 518-521 ◽  
Author(s):  
Cleber Rech ◽  
Jackson Adriano Albuquerque ◽  
Juliano Corulli Corrêa ◽  
Alvaro Luiz Mafra ◽  
Diego Bortolini
Keyword(s):  
Organic Carbon ◽  
Physical Properties ◽  
Carbon Content ◽  
Bulk Density ◽  
Soil Bulk Density ◽  
Organic Carbon Content ◽  
No Tillage ◽  
Swine Slurry ◽  
Tillage System ◽  
Liquid Slurry

Abstract: The objective of this work was to evaluate the superficial and injected applications of swine slurry and urea to the soil, regarding their effects on the physical properties of a Nitossolo Vermelho distroférrico under a no-tillage system. The treatments were: injected slurry into the groove with a liquid swine slurry injector (LSSI); slurry on surface, applied on the lines by the LSSI kept raised; urea injected by opening the groove with the LSSI and distributed manually; and corn, under no-tillage, as a control. Sowing and the injection of liquid slurry or urea do not modify the organic carbon content, pH, and aggregation, but alter the soil bulk density and porosity in the mobilized line, and increase the macropores.

scholarly journals PROPRIEDADES FÍSICAS DE UM LATOSSOLO VERMELHO CULTIVADO NO SISTEMA PLANTIO DIRETO

Irriga ◽  
2008 ◽  
Vol 13 (2) ◽  
pp. 191-204 ◽  
Author(s):  
Fernanda De Fátima da Silva ◽  
Onã Da Silva Freddi ◽  
José Frederico Centurion ◽  
Ricardo Garcia Aratani ◽  
Fabrícia Flávia Andrioli ◽  
...  
Keyword(s):  
Organic Matter ◽  
Hydraulic Conductivity ◽  
Physical Properties ◽  
Bulk Density ◽  
Soil Aggregates ◽  
Sao Paulo ◽  
Soil Porosity ◽  
No Tillage ◽  
Wooded Area ◽  
Tillage System

PROPRIEDADES FÍSICAS DE UM LATOSSOLO VERMELHO CULTIVADO NO SISTEMA PLANTIO DIRETO  Fernanda de Fátima da Silva; Onã da Silva Freddi; José Frederico Centurion; Ricardo Garcia Aratani; Fabricia Flavia Andrioli; Itamar Andrioli  Departamento de Solos e Adubos, Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterináiras, Jaboticabal, São Paulo, [email protected]  1 RESUMO A pressão exercida pelo tráfego de máquinas necessário ao cultivo das culturas pode levar à compactação do solo com o tempo de uso do sistema plantio direto. O objetivo do trabalho foi avaliar o efeito do tempo de adoção do sistema plantio direto em algumas propriedades físicas, índice S, e matéria orgânica (MO) de um Latossolo Vermelho distrófico de textura argilosa localizado em Jaboticabal, SP. O delineamento experimental foi o inteiramente casualizado com parcelas subdivididas (quatro sistemas de uso e três camadas do solo avaliadas). Os quatros sistemas de uso foram: sistema plantio direto por 2 anos (PD2), plantio direto por 4 anos (PD4), plantio direto por 6 anos (PD6) e uma área de mata nativa (MN). As camadas do solo avaliadas foram: 0-0, 10; 0,10-0,20 e 0,20-0,30 m, nas quais foram determinadas a porosidade do solo, o diâmetro médio ponderado, a densidade do solo, índice S, condutividade hidráulica e o teor de matéria orgânica. Os resultados foram submetidos à análise de variância e, quando esta indicou diferença entre médias, utilizou-se o teste de Tukey a 5% de probabilidade para compará-las. A mata nativa apresentou o maior teor de matéria orgânica, macroporosidade, condutividade e Índice S; já entre os sistemas de plantio direto não houve diferença entre os parâmetros analisados no experimento, demonstrando que o tempo de seis anos de adoção do sistema não foi suficiente para alterar a qualidade física do solo.UNITERMOS: densidade do solo, porosidade do solo, índice S, condutividade hidráulica, agregados do solo  SILVA, F. F.; FREDDI, O. S.; CENTURION, J. F.; ARATANI, R. G.; ANDRIOLI, F. F.; ANDRIOLI, I. PHYSICAL PROPERTIES OF AN OXISOL UNDER NO-TILLAGE SYSTEM  2 ABSTRACT             The pressure caused by agricultural machinery traffic many result in soil compactation in no-tillage system. The aim of this work was to evaluate no-tillage system onset time on some physical properties, index S and organic matter (OM) of an oxysol located in Jaboticabal,Sao Paulo State,Brazil. The experiment had completely randomized split-splot design .The treatments consisted of four no-tillage systems: no-tillage for 2 years, no-tillage for 4 years, no-tillage for 6 years and one natural wooded area. The evaluated layers were: 0-0.10m, 0.10-0.20m and 0.20-030m. The following were determined: soil porosity, soil aggregates, bulk density, index S and organic matter. The results were submitted to variance analysis and when there was a difference between averages, Tukey’s test was used to compare them. The natural wooded area showed higher organic matter, macroporosity, hydraulic conductivity and Index S. There was no difference between the studied parameters showing that the no-tillage system for six years was not enough to change the soil physical property. KEY WORDS: bulk density, soil porosity, index S, hydraulic conductivity, soil aggregates.

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

2016 ◽  
Vol 40 (0) ◽  
Author(s):  
Camila Jorge Bernabé Ferreira ◽  
Cássio Antonio Tormena ◽  
Wagner Henrique Moreira ◽  
Lincoln Zotarelli ◽  
Edner Betioli Junior ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Physical Properties ◽  
No Tillage ◽  
Sampling Position ◽  
Tillage System

scholarly journals Effects of soil management systems on soil microbial activity, bulk density and chemical properties

2001 ◽  
Vol 36 (12) ◽  
pp. 1539-1545 ◽  
Author(s):  
Maria Alexandra Reis Valpassos ◽  
Eloiza Gomes Silva Cavalcante ◽  
Ana Maria Rodrigues Cassiolato ◽  
Marlene Cristina Alves
Keyword(s):  
Bulk Density ◽  
Chemical Properties ◽  
Soil Management ◽  
Soil Microbial Activity ◽  
Management Systems ◽  
No Tillage ◽  
Soil Microbial ◽  
Tillage System ◽  
Crop Sequence ◽  
And Chemical Properties

The objective of this experiment was to study the effects of soil management systems on the bulk density, chemical soil properties, and on the soil microbial activity on a Latossolo Vermelho distrófico (Oxisol). Soil samples were collected from plots under the following management conditions: a) natural dense "cerrado" vegetation (savanna); b) degraded Brachiaria decumbens pasture, 20 years old; c) no-tillage treatment with annual crop sequence (bean, corn, soybean and dark-oat in continuous rotation), 8 years old; d) conventional tillage treatment with crop residues added to the soil, and annual crop sequence, 10 years old. The continuous use of no-tillage system resulted in an increase in microbial biomass and decrease in soil basal respiration, therefore displaying evident long-term effects on the increase of soil C content. The no-tillage system also provided an improvement in bulk density and chemical properties of the soil. Hence, the no-tillage management system could be an alternative for the conservation and maintenance of physical and chemical conditions and the productive potential of "cerrado" soils.

scholarly journals Soil Aggregation, Organic Carbon Concentration, and Soil Bulk Density As Affected by Cover Crop Species in a No-Tillage System

2015 ◽  
Vol 39 (3) ◽  
pp. 871-879 ◽  
Author(s):  
Adriano Stephan Nascente ◽  
Yuncong Li ◽  
Carlos Alexandre Costa Crusciol
Keyword(s):  
Organic Carbon ◽  
Bulk Density ◽  
Cover Crops ◽  
Cover Crop ◽  
Soil Bulk Density ◽  
Soil Aggregation ◽  
Soil Tillage ◽  
Panicum Maximum ◽  
No Tillage ◽  
Tillage System

Soil aggregation and the distribution of total organic carbon (TOC) may be affected by soil tillage and cover crops. The objective of this study was to determine the effects of crop rotation with cover crops on soil aggregation, TOC concentration in the soil aggregate fractions, and soil bulk density under a no-tillage system (NTS) and conventional tillage system (CTS, one plowing and two disking). This was a three-year study with cover crop/rice/cover crop/rice rotations in the Brazilian Cerrado. A randomized block experimental design with six treatments and three replications was used. The cover crops (treatments) were: fallow, Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, and millet (Pennisetum glaucum). An additional treatment, fallow plus CTS, was included as a control. Soil samples were collected at the depths of 0.00-0.05 m, 0.05-0.10 m, and 0.10-0.20 m after the second rice harvest. The treatments under the NTS led to greater stability in the soil aggregates (ranging from 86.33 to 95.37 %) than fallow plus CTS (ranging from 74.62 to 85.94 %). Fallow plus CTS showed the highest number of aggregates smaller than 2 mm. The cover crops affected soil bulk density differently, and the millet treatment in the NTS had the lowest values. The cover crops without incorporation provided the greatest accumulation of TOC in the soil surface layers. The TOC concentration was positively correlated with the aggregate stability index in all layers and negatively correlated with bulk density in the 0.00-0.10 m layer.

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