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Effects of amounts of surface mulch on physical and chemical properties of an alfisol from Nigeria

โœ Scribed by Dirk De Vleeschauwer; Rattan Lal; Robinson Malafa

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
433 KB
Volume
31
Category
Article
ISSN
0022-5142

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โœฆ Synopsis

Abstract

Three consecutive mulch applications were made to a freshly cleared alfisol in Nigeria at 6โ€month intervals at rates of 0, 2, 4, 6 and 12 t ha^โˆ’1^. Residues remaining after 6 months were removed prior to replacement additions. Pore size distribution and soil temperature are significantly affected by mulch rate. Total porosity, aggregation and infiltration rate increase with increasing mulch rate. A high correlation was found between mulch rate and earthworm activity. Due to differences in infiltration rate, runโ€off and soil losses decrease with higher mulch rates. After 18 months continuous mulching, potassium content, phosphorus concentration, pH and organic carbon show an exponential increase with mulch rate. The decomposition rate of the mulch material is higher for lower mulch rates.

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