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Titolo:
Soil quality changes in eastern Washington with Conservation Reserve Program (CRP) take-out
Autore:
Gewin, VL; Kennedy, AC; Veseth, R; Miller, BC;
Indirizzi:
USDA ARS, Land Management, Washington, DC 20250 USA USDA ARS Washington DC USA 20250 and Management, Washington, DC 20250 USA Washington State Univ, Pullman, WA 99164 USA Washington State Univ Pullman WA USA 99164 te Univ, Pullman, WA 99164 USA Univ Idaho, Moscow, ID 83843 USA Univ Idaho Moscow ID USA 83843Univ Idaho, Moscow, ID 83843 USA
Titolo Testata:
JOURNAL OF SOIL AND WATER CONSERVATION
fascicolo: 1, volume: 54, anno: 1999,
pagine: 432 - 438
SICI:
0022-4561(1999)54:1<432:SQCIEW>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRESTED WHEATGRASS; CROP PRODUCTION; ORGANIC-MATTER; TILLAGE;
Keywords:
Conservation Reserve Program; crested wheatgrass; direct-seed; erosion; no-till; soil microbiology; soil quality; tillage;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Gewin, VL USDA ARS, Land Management, Washington, DC 20250 USA USDA ARS Washington DC USA 20250 ment, Washington, DC 20250 USA
Citazione:
V.L. Gewin et al., "Soil quality changes in eastern Washington with Conservation Reserve Program (CRP) take-out", J SOIL WAT, 54(1), 1999, pp. 432-438

Abstract

CRP lands in eastern Washington were eligible for dryland cropping production as of 1995. Conservation and conventional take-put practices were assessed at eight sites throughout eastern Washington to determine changes in soil quality parameters. The trials tested different tillage options: direct-seed/spring plant (DSP), conventional tillage/spring take-out (CSP), or conventional tillage/summer fallow (CSF). The eastern Washington sites range in annual precipitation from 23 to 36 cm (?? to ?? in) and in soil organic matter from 1.06 to 2.60%. Microbial biomass, readily-mineralized carbon (RMC), dehydrogenase activity, pH, organic matter content (OM), nitrate and ammonium concentrations, moisture, bulk density, and aggregate stability weremonitored from 1995 to 1996. Results showed that RMC and pH were lower after one year in conventionally-tilled plots as compared to CRP grassland. The direct-seed samples were more like CRP grassland with respect to pH, dehydrogenase activity, and RMC than conventional tillage treatments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 16:00:05