Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn
Tillage affects soil physical properties, e.g., porosity, and leads to different amounts of mulch on the soil surface. Consequently, tillage is related to the soil temperature and moisture regime. Soil cover, temperature and moisture were measured under corn (Zea mays) in the tenth year of five till...
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Sociedade Brasileira de Ciência do Solo
2010-12-01
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doaj-b99d11b02ca04b80a4c09e6ed2babe752021-01-02T12:57:14ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572010-12-013462011202010.1590/S0100-06832010000600025S0100-06832010000600025Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under cornMilton da Veiga0Dalvan José Reinert1José Miguel Reichert2University of Western Santa CatarinaUniversidade Federal de Santa MariaUniversidade Federal de Santa MariaTillage affects soil physical properties, e.g., porosity, and leads to different amounts of mulch on the soil surface. Consequently, tillage is related to the soil temperature and moisture regime. Soil cover, temperature and moisture were measured under corn (Zea mays) in the tenth year of five tillage systems (NT = no-tillage; CP = chisel plow and single secondary disking; CT = primary and double secondary disking; CTb = CT with crop residues burned; and CTr = CT with crop residues removed). The tillage systems were combined with five nutrient sources (C = control; MF = mineral fertilizer; PL = poultry litter; CS = cattle slurry; and SS = swine slurry). Soil cover after sowing was greatest in NT (88 %), medium in CP (38 %) and lowest in CT treatments (< 10 %), but differences decreased after corn emergence. Soil temperature was related with soil cover, and significant differences among tillage were observed at the beginning of the growing season and at corn maturity. Differences in soil temperature and moisture in the surface layer of the tilled treatments were greater during the corn cycle than in untilled treatments, due to differences in intensity of soil mobilization and mulch remaining after soil management. Nutrient sources affected soil temperature and moisture in the most intense part of the corn growth period, and were related to the variation of the corn leaf area index among treatmentshttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000600025&lng=en&tlng=enplantio diretopreparo conservacionistapreparo convencionalestercosLatossolo |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Milton da Veiga Dalvan José Reinert José Miguel Reichert |
spellingShingle |
Milton da Veiga Dalvan José Reinert José Miguel Reichert Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn Revista Brasileira de Ciência do Solo plantio direto preparo conservacionista preparo convencional estercos Latossolo |
author_facet |
Milton da Veiga Dalvan José Reinert José Miguel Reichert |
author_sort |
Milton da Veiga |
title |
Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn |
title_short |
Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn |
title_full |
Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn |
title_fullStr |
Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn |
title_full_unstemmed |
Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn |
title_sort |
tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn |
publisher |
Sociedade Brasileira de Ciência do Solo |
series |
Revista Brasileira de Ciência do Solo |
issn |
1806-9657 |
publishDate |
2010-12-01 |
description |
Tillage affects soil physical properties, e.g., porosity, and leads to different amounts of mulch on the soil surface. Consequently, tillage is related to the soil temperature and moisture regime. Soil cover, temperature and moisture were measured under corn (Zea mays) in the tenth year of five tillage systems (NT = no-tillage; CP = chisel plow and single secondary disking; CT = primary and double secondary disking; CTb = CT with crop residues burned; and CTr = CT with crop residues removed). The tillage systems were combined with five nutrient sources (C = control; MF = mineral fertilizer; PL = poultry litter; CS = cattle slurry; and SS = swine slurry). Soil cover after sowing was greatest in NT (88 %), medium in CP (38 %) and lowest in CT treatments (< 10 %), but differences decreased after corn emergence. Soil temperature was related with soil cover, and significant differences among tillage were observed at the beginning of the growing season and at corn maturity. Differences in soil temperature and moisture in the surface layer of the tilled treatments were greater during the corn cycle than in untilled treatments, due to differences in intensity of soil mobilization and mulch remaining after soil management. Nutrient sources affected soil temperature and moisture in the most intense part of the corn growth period, and were related to the variation of the corn leaf area index among treatments |
topic |
plantio direto preparo conservacionista preparo convencional estercos Latossolo |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000600025&lng=en&tlng=en |
work_keys_str_mv |
AT miltondaveiga tillagesystemsandnutrientsourcesaffectingsoilcovertemperatureandmoistureinaclayeyoxisolundercorn AT dalvanjosereinert tillagesystemsandnutrientsourcesaffectingsoilcovertemperatureandmoistureinaclayeyoxisolundercorn AT josemiguelreichert tillagesystemsandnutrientsourcesaffectingsoilcovertemperatureandmoistureinaclayeyoxisolundercorn |
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