Nitrogen mineralization of agroforestry tree mulches under saline soil conditions

Soil erosion, land degradation and social transition. Geoecological analysis of a semi-arid tropical region, Kenya

Auteurs :
YOBTERIK, A.C.
TIMMER, V.R.
BRYAN, R.B.

Description :
Laboratory incubation experiments were conducted to study the effects of mulch incorporations of Leucaena leucocephala, Gliricidia sepium, Grevillea robusta and Cassia siamea residues on soil N mineralization under saline conditions for 10 weeks. The results suggest that agroforestery under saline irrigation should favour salt tolerant species preferring ammonium-N to nitrate-N as a N source. Ammonium production was unaffected by salinity levels suggesting that oorganic mulch incorporation may buffer excess salinity on soil microbes.


Type de document :
Article de monographie

Source :
Catena Verlag: Advances in geoecology, 1994, n°. 27, p. 181-194, Collation : Illustration, Références bibliographiques : 48 ref.

Date :
1994

Identifiants :
isbn : 3-923881-36-0

Editeur :
Pays édition : Allemagne