Cover Crop Effects on Near-Surface Soil Aggregate Stability in the Southern Mississippi Valley Loess (MLRA 134)
نویسندگان
چکیده
The use of cover crops (CC) during the agricultural fallow period has been shown to help alleviate soil compaction and provide stabilizing effects against erosion. These benefits are particularly important as many silty, loess-derived soils major land resource area (MLRA) 134, Southern Mississippi Valley Loess, have large erosion potentials. This study evaluated CC no-cover crop (NCC) treatments on a selection silt-loam in MLRA 134. Treatments were implemented Fall 2018 2019 consisted range species. Soil samples from top 10 cm collected evaluate suite properties. texture, pH, organic matter, Mehlich-3 extractable Mg, Na, Ca unaffected (P > 0.05) by treatment. Total water-stable aggregate concentration was treatment depth (i.e., 0 - 5 cm). bulk density greater •cm−3) than under (1.24 g•cm−3). Water-stable depth, but 21.5 times •g−1) 4-mm (0.05 g•g−1) size class. Study results indicate that, even among sites with variability, can consistent, short-term, positive properties, long-term commitment continuous, annual is necessary for full realization potential benefits.
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ژورنال
عنوان ژورنال: Agricultural sciences
سال: 2022
ISSN: ['2156-8553', '2156-8561']
DOI: https://doi.org/10.4236/as.2022.136048