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You searched for: Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject term biogeochemical cycles Remove constraint Subject term: biogeochemical cycles Subject term Texas Remove constraint Subject term: Texas
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1. Rye Cover Crop Impacts Soil Properties in a Long-Term Cotton System

Author:
P. B. DeLaune; P. Mubvumba; K. L. Lewis; J. W. Keeling
Source:
Soil Science Society of America journal 2019 v.83 no.5 pp. 1451-1458
ISSN:
0361-5995
Subject:
biogeochemical cycles; bulk density; conventional tillage; cotton; cover crops; cropping systems; growing season; nitrate nitrogen; no-tillage; resistance to penetration; rye; semiarid zones; soil compaction; soil function; soil organic carbon; soil properties; water conservation; High Plains (United States); Texas
Abstract:
... Adoption of conservation tillage in cotton cropping systems lags well behind other major crops in the United States. The Texas High Plains region is the largest cotton-producing region in the United States and is in an area where soil and water conservation are of utmost importance. There is little information of the impacts of conservation tillage on soil function within this environment, and lon ...
DOI:
10.2136/sssaj2019.03.0069

2. Simultaneous determination of β-glucosidase, β-glucosaminidase, acid phosphomonoesterase, and arylsulfatase activities in a soil sample for a biogeochemical cycling index

Author:
Verónica Acosta-Martínez; Lumarie Pérez-Guzmán; Jane M.F. Johnson
Source:
Applied soil ecology 2019 v.142 pp. 72-80
ISSN:
0929-1393
Subject:
Conservation Reserve Program; acetates; acid phosphatase; agroecosystems; air drying; arylsulfatase; beta-N-acetylhexosaminidase; beta-glucosidase; bioavailability; biogeochemical cycles; buffers; cotton; enzyme activity; grasses; nutrients; p-nitrophenol; pH; soil; soil organic carbon; soil quality; total nitrogen; Minnesota; Texas
Abstract:
... Four enzymes activities (EAs) have been targeted as soil health indicators for their important role in reactions releasing bioavailable nutrients within C (β-glucosidase), N and C (β-glucosaminidase), P (acid phosphomonoesterase) and S (arylsulfatase) cycling. Traditionally these EAs are assayed independently on air-dried soil by measuring the release of p-nitrophenol from a substrate analog. Prev ...
DOI:
10.1016/j.apsoil.2019.05.001

3. Soil microbial community size and composition changes along a tanglehead (Heteropogon contortus) gradient in a semiarid region

Author:
Joshua L. Grace; Veronica Acosta-Martínez; Sandra Rideout-Hanzak; Randy Stanko; Alfonso Ortega-S.; David B. Wester
Source:
Applied soil ecology 2019 v.138 pp. 37-46
ISSN:
0929-1393
Subject:
Heteropogon contortus; biogeochemical cycles; community structure; ecosystems; energy; fatty acid methyl esters; grasses; habitat destruction; invasive species; microbial carbon; microbial communities; nitrogen; plant communities; rangelands; sand; saprophytes; semiarid zones; soil; soil microorganisms; wildlife habitats; Texas
Abstract:
... Invasive plants are a serious concern throughout many rangelands in North America because of their detrimental effects on vegetation community composition, diversity and wildlife habitat. Growing evidence shows that invasive plants affect ecosystem processes such as energy and nutrient cycling and soil microbial associations. Tanglehead (Heteropogon contortus [L.] P. Beauv. ex Roem and Schult.) is ...
DOI:
10.1016/j.apsoil.2019.02.012