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Titolo:
Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial
Autore:
Lalande, R; Gagnon, B; Simard, RR; Cote, D;
Indirizzi:
Agr & Agroalimentaire Canada, Ctr Rech & Dev Sols & GRandes Cultures, St Foy, PQ G1V 2J3, Canada Agr & Agroalimentaire Canada St Foy PQ Canada G1V 2J3 PQ G1V 2J3, Canada Inst Rech & Dev Agroenvironm, St Foy, PQ G1P 3W8, Canada Inst Rech & Dev Agroenvironm St Foy PQ Canada G1P 3W8 PQ G1P 3W8, Canada
Titolo Testata:
CANADIAN JOURNAL OF SOIL SCIENCE
fascicolo: 2, volume: 80, anno: 2000,
pagine: 263 - 269
SICI:
0008-4271(200005)80:2<263:SMBAEA>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORGANIC-MATTER QUALITY; CATTLE SLURRY; AMENDED SOILS; PIG SLURRY; NITROGEN; CORN; MINERALIZATION; GRASSLAND; AMMONIUM; TILLAGE;
Keywords:
corn; pig slurry; microbial biomass; monoculture; soil enzyme;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Lalande, R Agr & Agroalimentaire Canada, Ctr Rech & Dev Sols & GRandes Cultures, 2560Boul Hochelaga, St Foy, PQ G1V 2J3, Canada Agr & AgroalimentaireCanada 2560 Boul Hochelaga St Foy PQ Canada G1V 2J3
Citazione:
R. Lalande et al., "Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial", CAN J SOIL, 80(2), 2000, pp. 263-269

Abstract

Liquid hog manure (LHM) addition to soils in corn silage (Zea mays L.) production may benefit microbial activity by providing C and other nutrients. The objective of this study was to compare the effects of a LHM applicationto that of inorganic fertilizers (IF) on the biological activity of a Le Bras silt loam soil (Humic Gleysol) under continuous com production and LHM fertilization. Amounts of 0 to 120 m(3) LHM ha(-1) and 150 N-150 P2O5-150 K2O kg ha(-1) were applied to silage corn. The 0- to 15-cm and 15- to 30-cm soil layers were sampled 28 d after the 18th yearly LHM application. The LHM inputs, particularly at 90 m(3) ha(-1), resulted in higher enzyme activities and microbial biomass C (MBC) than IF or the unamended control in the 0- to 15-cm soil layer. The 90 m(3) LHM ha(-1) also gave higher microbial biomass N (MBN) than IF in this soil layer. Application of LHM had no effect on the activities of the enzymes studied or on the MBC and MBN contents in the 15- to 30-cm layer. Ammonifier population was highest with 60 m(3) LHM ha(-1) in both soil layers. Nitrifier population was not affected by LHM inthe top soil layer, but was linearly increased by LHM rates in the 15- to 30-cm layer. This study showed that LHM addition may enhance enzyme activities, microbial biomass and the N mineralizer population in the plow layer of a soil in a corn silage monoculture.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 16:36:41