Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
SIMULATING CORN YIELDS OVER 16 YEARS ON 3 SOILS UNDER INORGANIC FERTILIZER AND HOG MANURE FERTILITY REGIMES
Autore:
PARSONS RL; PEASE JW; MARTENS DC;
Indirizzi:
VIRGINIA POLYTECH INST & STATE UNIV,DEPT AGR & APPL ECON BLACKSBURG VA 24061 VIRGINIA POLYTECH INST & STATE UNIV,DEPT CROP & SOIL ENVIRONM SCI BLACKSBURG VA 24061
Titolo Testata:
Communications in soil science and plant analysis
fascicolo: 7-8, volume: 26, anno: 1995,
pagine: 1133 - 1150
SICI:
0010-3624(1995)26:7-8<1133:SCYO1Y>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
COPPER; MODEL; AVAILABILITY; FORM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
R.L. Parsons et al., "SIMULATING CORN YIELDS OVER 16 YEARS ON 3 SOILS UNDER INORGANIC FERTILIZER AND HOG MANURE FERTILITY REGIMES", Communications in soil science and plant analysis, 26(7-8), 1995, pp. 1133-1150

Abstract

Corn yields (Zea mays L.) on control treatments with inorganic fertilizer and on copper-enriched hog manure treatments with annual rates upto 168 mt/ha from a 16-year study were modelled with the Erosion Productivity Impact Calculator (EPIC) simulation model. The field researchstudy was conducted on three diverse soils, a Guemsey silt loam, a Bertie fine sandy loam, and a Starr-Dyke clay loam. Results indicated that EPIC simulated the manure and fertilizer treatments equally well. EPIC produced simulated yield means that were not different from measured yield means for all treatments (p less than or equal to 0.05). Goodness of fit tests indicate that simulated yields did not differ from measured yields for all simulation models except the Bertie manure treatment (p less than or equal to 0.05). For control and manure treatments, simulated yields explained 78% and 89% of variation in measured yields for the Guernsey soil, 55% and 42% for the Bertie soil, and 76% and 70% for the Starr-Dyke soil, respectively. Overall, these are reasonable yields estimates, but site-specific soil and other model parameter respecification is critical. Yield modeling with heavy applications of animal manure or inorganic fertilizer is feasible and useful.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 11:47:46