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Titolo:
SOIL-NITROGEN AND MOISTURE AS INFLUENCED BY COMPOSTS AND INORGANIC FERTILIZER RATE
Autore:
GAGNON B; SIMARD RR; GOULET M; ROBITAILLE R; RIOUX R;
Indirizzi:
AGR & AGROALIMENTAIRE CANADA,CTR RECH SOLS & GRANDES CULTURES,2560 BLVD HOCHELAGA ST FOY PQ G1V 2J3 CANADA AGR & AGROALIMENTAIRE CANADA,CTR RECH SOLS & GRANDES CULTURES ST FOY PQ G1V 2J3 CANADA CTR AGR BIOL LA POCATIERE PQ G0R 1Z0 CANADA AGR & AGROALIMENTAIRE CANADA,FERME RECH MOUTON LA POCATIERE PQ G0R 1Z0 CANADA
Titolo Testata:
Canadian Journal of Soil Science
fascicolo: 1, volume: 78, anno: 1998,
pagine: 207 - 215
SICI:
0008-4271(1998)78:1<207:SAMAIB>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHEMICAL-PROPERTIES; MANURE; CORN; AVAILABILITY; MINERALIZATION; NITRATE; CARBON; FIELD; YIELD; UREA;
Keywords:
DAIRY MANURE COMPOST; SHRIMP WASTES; PEAT MOSS; WHEAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
B. Gagnon et al., "SOIL-NITROGEN AND MOISTURE AS INFLUENCED BY COMPOSTS AND INORGANIC FERTILIZER RATE", Canadian Journal of Soil Science, 78(1), 1998, pp. 207-215

Abstract

The addition of compost may mitigate soil degradation and contribute to the soil nutrient supply in spring cereal monoculture. A field study was carried out in eastern Quebec, Canada, to assess the impact of composts from four sources and ammonium nitrate (AN) applied at different rates in spring on soil moisture and inorganic N in spring wheat production (Triticum aestivum L. 'Messier'). The experiment was conducted in 1994 and 1995 on two different soils: a Kamouraska clay (Orthic Humic Gleysol) and a Saint-Andre sandy loam (Fragic Humo-Ferric Podzol). Composts were applied at rates of 0, 90, 180 and 360 kg total N ha(-1). Ammonium nitrate was applied at 0, 45, 90 and 180 kg N ha(-1). Treatments in which AN was added to composts were also included. Thirty days after N application, profile soil inorganic N increased linearly with rates of commercial composts and AN but not with farm composts, whereas at harvest, residual soil N was not affected by composts but wasincreased by AN. The relative contribution of the compost organic fraction was negligible in the first year of application. Soil inorganic N at 30 d after fertilizer applications was significantly related to plant N uptake at harvest (r(2) = 0.74), suggesting useful index of compost N availability. Large amounts of compost raised soil moisture content of the sandy loam by 3-5%, particularly under dry climatic conditions. Commercial composts have a small N fertilizer value, whereas composted dairy manure should be considered preferable as a soil amendment.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 16:47:59