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Titolo:
EFFECT OF COMPOSTS AND INORGANIC FERTILIZERS ON SPRING WHEAT GROWTH AND N UPTAKE
Autore:
GAGNON B; SIMARD RR; ROBITAILLE R; GOULET M; RIOUX R;
Indirizzi:
AGR & AGROALIMENTAIRE CANADA,CTR RECH & DEV SOLS & GRANDES CULTURES,2560 BOUL HOCHELAGA ST FOY PQ G1V 2J3 CANADA AGR & AGROALIMENTAIRE CANADA,CTR RECH & DEV 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: 3, volume: 77, anno: 1997,
pagine: 487 - 495
SICI:
0008-4271(1997)77:3<487:EOCAIF>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOIL CHEMICAL-PROPERTIES; NITROGEN; MANURE; MINERALIZATION; INDEXES; MAIZE;
Keywords:
COMPOSTED DAIRY MANURE; SHRIMP WASTES; PEAT MOSS; APPARENT N RECOVERY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
B. Gagnon et al., "EFFECT OF COMPOSTS AND INORGANIC FERTILIZERS ON SPRING WHEAT GROWTH AND N UPTAKE", Canadian Journal of Soil Science, 77(3), 1997, pp. 487-495

Abstract

The nutrient availability of composts has to be known for their safe use in crop production. A field study was carried out to assess the effect of a spring application of composts and inorganic fertilizers on spring wheat (Triticum aestivum L. 'Messier') growth and N uptake in eastern Quebec (Canada). The experiment was conducted in 1994 and 1995 on two different soils: a Kamouraska clay (Orthic Humic Gleysol) and aSaint-Andre sandy loam (Fragic Humo-Ferric Podzol). Four composts were applied at rates of 0, 90, 180 and 360 kg total N ha(-1). Inorganic fertilizers were applied at rates of 0, 50, 100 and 200% of wheat N, Por K requirements. Treatments in which inorganic fertilizers (IN) were added to composts were also included. Grain yield was increased by Nrates whereas composts alone at 90 kg total N ha(-1) resulted in lower yields than the central in the first year on the sandy loam. Commercial composts resulted in higher yields than dairy manure composts. Wheat showed no significant response to P and K fertilizers on either soil. Compost rates had no effect on grain N content but commercial composts increased straw N by 36 to 63%. Addition of IN to composts increased grain yield by 0.1 to 1.5 Mg ha(-1) and N uptake by 4 to 55 kg N ha(-1), depending on soil and weather conditions. Apparent recovery efficiency of added N for composts was -14 to 15% whereas it ranged from 24 to 56% for M. In spring wheat production, composts should be considered more as organic matter amendments because of their limited N efficiency.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 23:44:40