Sampling plan for using a motorized penetrometer in soil compaction evaluation
ABSTRACT This study aimed to estimate the size of blocks of observations of resistance to penetration, obtained by a motorized digital penetrometer, and the number of blocks with semi-amplitude of the confidence interval between 5 and 20% of the mean penetration resistance, for different soil depth...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Campina Grande
2016-03-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300250&lng=en&tlng=en |
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| author | Lindolfo Storck Sarha G. K. Kobata Betania Brum André B. Soares Alcir J. Modolo Tangriani S. Assmann |
| author_facet | Lindolfo Storck Sarha G. K. Kobata Betania Brum André B. Soares Alcir J. Modolo Tangriani S. Assmann |
| author_sort | Lindolfo Storck |
| collection | DOAJ |
| description | ABSTRACT This study aimed to estimate the size of blocks of observations of resistance to penetration, obtained by a motorized digital penetrometer, and the number of blocks with semi-amplitude of the confidence interval between 5 and 20% of the mean penetration resistance, for different soil depth ranges and cone diameters. Data were collected in two contrasting plots of a crop-livestock integration experiment, located in Abelardo Luz, SC, Brazil. Ten blocks were delimited and the resistance to penetration was determined in 20 points spaced by 20 cm, using a motorized digital soil penetrometer. To estimate the mean of resistance to penetration, 12 blocks of four points per experimental plot should be used for a semi-amplitude of the confidence interval equal to 10% of the mean (1 - p = 0.95). Twenty random points may be sampled to estimate mean of penetration resistance for a semiamplitude confidence interval of 10% of the man (1 - p = 0.95). The sample size for the layer of 0-10 cm is larger than in the deeper layers (0-20, 0-30 and 0-40 cm) and smaller for cones with larger diameter. |
| format | Article |
| id | doaj-art-6c4f3e606d604a71b47c8a77c8b2fad9 |
| institution | DOAJ |
| issn | 1807-1929 |
| language | English |
| publishDate | 2016-03-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-6c4f3e606d604a71b47c8a77c8b2fad92025-08-20T03:18:20ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292016-03-0120325025510.1590/1807-1929/agriambi.v20n3p250-255S1415-43662016000300250Sampling plan for using a motorized penetrometer in soil compaction evaluationLindolfo StorckSarha G. K. KobataBetania BrumAndré B. SoaresAlcir J. ModoloTangriani S. AssmannABSTRACT This study aimed to estimate the size of blocks of observations of resistance to penetration, obtained by a motorized digital penetrometer, and the number of blocks with semi-amplitude of the confidence interval between 5 and 20% of the mean penetration resistance, for different soil depth ranges and cone diameters. Data were collected in two contrasting plots of a crop-livestock integration experiment, located in Abelardo Luz, SC, Brazil. Ten blocks were delimited and the resistance to penetration was determined in 20 points spaced by 20 cm, using a motorized digital soil penetrometer. To estimate the mean of resistance to penetration, 12 blocks of four points per experimental plot should be used for a semi-amplitude of the confidence interval equal to 10% of the mean (1 - p = 0.95). Twenty random points may be sampled to estimate mean of penetration resistance for a semiamplitude confidence interval of 10% of the man (1 - p = 0.95). The sample size for the layer of 0-10 cm is larger than in the deeper layers (0-20, 0-30 and 0-40 cm) and smaller for cones with larger diameter.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300250&lng=en&tlng=entamanho de amostraresistência à penetraçãopressão de pastejomanejo do solo |
| spellingShingle | Lindolfo Storck Sarha G. K. Kobata Betania Brum André B. Soares Alcir J. Modolo Tangriani S. Assmann Sampling plan for using a motorized penetrometer in soil compaction evaluation Revista Brasileira de Engenharia Agrícola e Ambiental tamanho de amostra resistência à penetração pressão de pastejo manejo do solo |
| title | Sampling plan for using a motorized penetrometer in soil compaction evaluation |
| title_full | Sampling plan for using a motorized penetrometer in soil compaction evaluation |
| title_fullStr | Sampling plan for using a motorized penetrometer in soil compaction evaluation |
| title_full_unstemmed | Sampling plan for using a motorized penetrometer in soil compaction evaluation |
| title_short | Sampling plan for using a motorized penetrometer in soil compaction evaluation |
| title_sort | sampling plan for using a motorized penetrometer in soil compaction evaluation |
| topic | tamanho de amostra resistência à penetração pressão de pastejo manejo do solo |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300250&lng=en&tlng=en |
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