The effect of various sources and dose of phosphorus on residual soil test phosphorus in different soils

Auteur(s) et Affiliation(s)

SHAFQAT, M.N.

Dept. of Biosciences, COMSATS Inst. of Information Technology, Islamabad, Pakistan

Dept. of Agronomy, Kansas State Univ., Manhattan, Etats-Unis

PIERZYNSKI, G.M.

Dept. of Agronomy, Kansas State Univ., Manhattan, Etats-Unis

Description :
Soil test phosphorus (STP) finds its agronomic utility for the recommendation of phosphorus (P) fertilizer to crops and in risk assessment of offsite soil P movement from an environmental perspective. The aim of this research was to understand the influence of P from several P sources applied on Soil test phosphorus (STP) in 6 different soils both before crop P removal (NBP0) and after the first (NBP1) and seventh harvest (NBP7) of corn (Zea mays L.). The P was extracted with Bray1 solution from animal P sources alone as well as from soils amended with P sources. The results suggested that monogastric P sources contained relatively large proportions of Bray1 than ruminants. It is shown that all soils amended with turkey litter contained the least amounts of NBP0 and NBP1; The greatest proportion of residual P measured as Bray1P was seen in hog manure.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 105, p. 21-28, nombre de pages : 8, Références bibliographiques : 38 ref.

Date :
2013

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais