Condutividade hidráulica e resistência à penetraçao do solo influenciada por diferentes sistemas de manejo


Autoria(s): Moreti, D.; Alves, M. C.; Perozini, A. Caetano; Paz González, A.; Silva, E. C.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/12/2006

Resumo

Soil management measures that increase the efficiency of organic matter cycling and maintain favorable soil structure are needed for improving soil quality. On the other hand, soil structure degradation due to inadequate soil management systems is widespread. Among the indicators of soil physical quality, saturated hydraulic conductivity and penetration resistance are thought to be sensitive to soil management system. The aim of this work was to study the influence of soil tillage system and organic fertilization on selected soil physical properties after the first year of treatment. The field work was conducted in Selviria, MS, Brazil on an Oxisol. The experimental design was randomized complete blocks with split-plots, with 12 treatments and 4 repetitions. Tillage treatments included conventional ploughing (CT) and direct drilling (DD). Fertilizer treatments were: 1) manure, 2) manure plus mineral, 3) traditional mineral 4) plant residues of Crotalaria juncea, 5) plant residues of Pennisetum americanum and 6) control plot. The plots were cropped to bean in winter and to cotton in summer, and both cultures were irrigated. After one year no significant differences between treatments in mechanical resistance and porosity were found. However, saturated hydraulic conductivity and infiltration were higher in the conventional tillage treatment at the 0.00-0.10 m depth. Moreover, an improvement in soil physical condition by organic fertilizers was shown.

Formato

29-42

Identificador

http://www.iux.es/?page=15&arts=84&id=2

Cadernos do Laboratorio Xeoloxico de Laxe, n. 31, p. 29-42, 2006.

0213-4497

http://hdl.handle.net/11449/69362

2-s2.0-33947512393

Idioma(s)

spa

Relação

Cadernos do Laboratorio Xeoloxico de Laxe

Direitos

openAccess

Palavras-Chave #Conventional tillage #Cover crops #Hydraulic conductivity #No-tillage #Organic manure #Penetration resistance #fertilizer application #infiltration #manure #soil management #soil organic matter #soil structure #zero tillage #Brazil #South America #Crotalaria juncea #Gossypium hirsutum #Pennisetum glaucum
Tipo

info:eu-repo/semantics/article