Background: Free-living amoebae have various genera that are found in several environmental niches such as soil, freshwater, dust, seawater and hotsprings. Most of Free-living amoebae are normally harmless to humans. However, some ameoba such as Acanthamoeba and also Naegleria fowleri, Balamuthia manderillaris and Sappinia are identified as opportunistic and pathogenic amoebae that can cause ey...

An experiment was conducted to determine population changes and niche variation in the soil at two depths (0 to 20 cm and 20 to 40 cm) of Paratrichodorus minor and Belonolaimus longicaudatus populations following fumigation. Eight plots each of potato (Solanum tuberosum) and cabbage (Brassica oleracea var. capitata), fumigated with 1, 3-dichloropropene or nonfumigated, were established. Eight p...

Soil quality (SQ) assessment is a proactive process for evaluating soil and crop management effects on biological, chemical, and physical indicators of soil health. Our objectives were to evaluate several SQ indicators within five Agricultural Research Service (ARS) experimental watersheds (WS) and determine if those indicators were affected by manure, tillage, or crop rotation histories. Ten s...

Measurement of natural radionuclides concentration in Samosir area of Sumatera island of Indonesia aims to obtain basis data of the content of radionuclides that could be tended in the development of the area. This research was conducted using Neutron Activation Analysis (NAA), which consists of a sampling of soil of Samosir Island as the residential area and the soil surrounding of Pangururan ...

Background: Soil structure is mainly composed of sand, silt, clay, and organic materials. Organisms can live in the soil. The large number of stray cats in the cities of Iran is a major environmental and health problem. Toxoplasma oocysts are shed with the feces of cats, so soil is known as a potential source of transmission of toxoplasmosis. The aim of this study was to determine the soil cont...

BACKGROUND Toxoplasma gondii is a zoonotic pathogen that can infect a range of animals and humans. Ingestion of T. gondii oocysts in soil is a significant transmission route for humans and animals acquiring toxoplasmosis. In the present study, we developed a new semi-nested PCR method to determine T. gondii oocysts distribution in soils in northwestern China. RESULTS The one tube semi-nested ...

ing. The band control received a coulterknife pass without fertilizer. Soybean response to direct P application was evaluated in seven trials (Sites 1 through 7). The treatments were applied in the fall (October or November) after harvesting the previous corn crop and before soils had frozen. At the remaining seven trials (Sites 8 through 14), P was applied 1 year earlier (in the fall prior to ...