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You searched for: Journal name Soil Science Society of America journal Remove constraint Journal name: Soil Science Society of America journal Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject term biogeochemical cycles Remove constraint Subject term: biogeochemical cycles
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1. Cover Crops and Compost Influence Soil Enzymes during Six Years of Tillage-Intensive, Organic Vegetable Production

Author:
Eric B. Brennan; Veronica Acosta-Martinez
Source:
Soil Science Society of America journal 2019 v.83 no.3 pp. 624-637
ISSN:
0361-5995
Subject:
alkaline phosphatase; asparaginase; beta-N-acetylhexosaminidase; beta-glucosidase; biogeochemical cycles; composts; cover crops; enzyme activity; microbial biomass; organic matter; organic production; rye; shoots; soil enzymes; soil quality; vegetable growing; vegetables; winter; yard wastes; California
Abstract:
... Soil enzymes are considered sensitive indicators of soil health but are not well understood in tillage-intensive vegetable systems. The activities of soil enzymes involved in nutrient cycling (β-glucosidase, β-glucosaminidase, alkaline phosphatase, dehydrogenase, aspartase, and L-asparaginase) were evaluated during 6 yr of commercial-scale production in five organic vegetable systems in Salinas, C ...
DOI:
10.2136/sssaj2017.12.0412

2. 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

3. Soil Extracellular Enzymatic Stoichiometry along a Hydrologic Gradient of Hillslope Riparian Zone of the Three Gorges Reservoir

Author:
Hongyun Qu; Guomei Jia; Xiao Liu; Hanyu Xiang; Yunfei Yue; Hailing Zhang
Source:
Soil Science Society of America journal 2019 v.83 no.5 pp. 1575-1584
ISSN:
0361-5995
Subject:
altitude; biogeochemical cycles; ecosystems; enzymes; hydrology; microbial growth; nutrient availability; pH; riparian areas; soil; soil carbon; soil enzymes; soil nutrients; stoichiometry; topographic slope; water reservoirs
Abstract:
... The riparian zone of reverse seasonal flooding caused by dam operation has become a nutrient availability and biogeochemical “hot spot.” However, the limitations of soil nutrient availability on soil microbial growth in these ecosystems are poorly understood. Four subsites with different inundation durations (longer-term inundation [LI] at 145–155 m asl, middle inundation [MI] at 155–165 m asl, sh ...
DOI:
10.2136/sssaj2018.12.0509