Soil quality of semi-arid conservation reserve program lands in Eastern New Mexico

Autor: Omololu J. Idowu, Patrick Kircher
Rok vydání: 2015
Předmět:
Zdroj: Arid Land Research and Management. 30:153-165
ISSN: 1532-4990
1532-4982
DOI: 10.1080/15324982.2015.1065932
Popis: A study was conducted to evaluate selected soil quality indicators in lands that have been in Conservation Reserve Program (CRP), which is a federal program in the United States offering annual rental payments and cost-share assistance to farmers who establish long-term vegetation covers on their erosion prone lands. The study site has semi-arid climate, and soils with grass vegetation covers for 15 years were compared with adjacent cultivated croplands that have never been in the CRP. Field measurements were performed and surface soil samples (0–0.15 m) were collected from multiple sites having either coarse textured or fine textured soils. Soil measurements assessed included bulk density (BD), penetration resistance (PR), wet aggregate stability (WAS), dry aggregate size distribution (DASD), soil organic matter (SOM), permanganate oxidizable carbon, nitrate nitrogen, extractable potassium and phosphorus, electrical conductivity, pH, sodium adsorption ratio, and soil micronutrients (copper, iron,...
Databáze: OpenAIRE