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You searched for: Journal name Transactions of the ASAE Remove constraint Journal name: Transactions of the ASAE Publication year rev 7996-2004 Remove constraint Publication year rev: 7996-2004 Source 2004 v.47 no.6 Remove constraint Source: 2004 v.47 no.6
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1. Calibration methods for nondestructive microwave sensing of moisture content and bulk density of granular materials

Author:
Trabelsi, S.; Nelson, S.O.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 1999-2008
ISSN:
0001-2351
Subject:
dielectric properties; calibration; soybeans; corn; wheat; bulk density; water content; microwave radiation; nondestructive methods
Abstract:
... The principles of a nondestructive multiparameter microwave sensor operating at a single frequency are presented. Two calibration methods are reviewed and compared for simultaneous, independent determination of bulk density and moisture content in granular materials. The first calibration method is based on measurement of attenuation and phase shift through a layer of material in free space. The a ...
Handle:
10113/9732

2. Limits of volatile chemical detection of a parasitoid wasp, Microplitis croceipes, and an electronic nose: a comparative study

Author:
Rains, G.C.; Tomberlin, J.K.; D'Alessandro, M.; Lewis, W.J.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 2145-2152
ISSN:
0001-2351
Subject:
parasitoids; antennating; Microplitis croceipes; volatile organic compounds; cadaverine; bioassays; smell; putrescine; searching behavior; electronic nose; myrcene
Abstract:
... Volatile chemical signals are used by many animals to find food, mates, or hosts. While the keen sense of smell of dogs has been used for centuries, other animals have not been significantly utilized. Recent studies have indicated that many insect species have the ability to learn volatile chemical compounds in association with food or other resources. These insects present a novel approach to vol ...
Handle:
10113/9734

3. Sensor components for PCR detection of Salmonella in alfalfa sprout irrigation water

Author:
Jackson, E.; Delwiche, M.; Barak, J.; Charkowski, A.; Suslow, T.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 2137-2144
ISSN:
0001-2351
Subject:
sprouts (food); bacterial contamination; biosensors; polymerase chain reaction; Medicago sativa; automation; food processing; water; food pathogens; Salmonella enterica
Abstract:
... Salmonella has been associated with a number of recent outbreaks of foodborne illness involving sprouted seeds. In this research, we addressed the design of sensor components intended for use in a fully automated detection system. A real-time PCR assay was developed to detect Salmonella in sprout irrigation water. Specific detection was achieved by targeting a region of the invasion gene, invA. Th ...
Handle:
10113/9733

4. Soil moisture effects on energy requirements and soil disruption of subsoiling a coastal plain soil

Author:
Raper, R.L.; Sharma, A.K.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 1899-1905
ISSN:
0001-2351
Subject:
sandy loam soils; coastal plain soils; soil water content; subsoiling; soil compaction; power requirement; minimum tillage
Abstract:
... An experiment was conducted to determine the optimum moisture content to subsoil based on tillage forces and soil disruption. Two different shanks, a straight shank and a "minimum-tillage" shank, were tested in a Coastal Plain soil in the soil bins of the National Soil Dynamics Laboratory in Auburn, Alabama. A three-dimensional dynamometer measured tillage forces, and a laser profilometer measured ...
Handle:
10113/9728

5. Farm-level optimization of BMP placement for cost-effective pollution reduction

Author:
Gitau, M.W.; Veith, T.L.; Gburek, W.J.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 1923-1931
ISSN:
0001-2351
Subject:
best management practices; Soil and Water Assessment Tool model; nonpoint source pollution; algorithms; pollution control; agricultural runoff; pollutants; agricultural land; agricultural watersheds; phosphorus; phosphorus fertilizers; water pollution; fertilizer application; New York
Abstract:
... With best management practices (BMPs) being used increasingly to control agricultural pollutant losses to surface waters, establishing the environmental effectiveness of these practices has become important. Additionally, cost implications of establishing and maintaining environmentally effective BMPs are often a crucial factor in selecting and adopting BMPs. This article considers both water qual ...
Handle:
10113/9729

6. Real-time measurement of drainage from pot-in-pot container nurseries

Author:
Zhu, H.; Krause, C.R.; Derksen, R.C.; Brazee, R.D.; Zondag, R.; Fausey, N.R.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 1973-1979
ISSN:
0001-2351
Subject:
forest nurseries; container-grown plants; pot culture; plant containers; drainage water; Acer rubrum; microirrigation; irrigation scheduling; irrigation requirement
Abstract:
... In pot-in-pot nursery production, information on the amount of drainage water loss from the pots due to irrigation and rainfall is beneficial to improving irrigation water use efficiency and optimizing nutrition management. An experimental field site was established to determine drainage water loss from pot-in-pot container nurseries with micro-irrigation. The site consisted of 50 container-grown ...
Handle:
10113/9731

7. Use of floating vegetation to remove nutrients from swine lagoon wastewater

Author:
Hubbard, R.K.; Gascho, G.J.; Newton, G.L.
Source:
Transactions of the ASAE 2004 v.47 no.6 pp. 1963-1972
ISSN:
0001-2351
Subject:
waste lagoons; pig manure; biological treatment; aquatic plants; nutrient uptake; wastewater; Typha latifolia; Juncus effusus; Panicum hemitomon; nitrogen; phosphorus; potassium
Abstract:
... Methods are needed to remove nutrients contained within wastewater lagoons. Potential exists for nutrient removal directly from lagoons if vegetation can be grown on floating mats in the lagoon and periodically harvested and removed. Vegetative cover of lagoons may also help reduce odor problems. A study was conducted to determine the feasibility of using floating mats of vegetation on swine lagoo ...
Handle:
10113/9730