Rill erosion of a self-mulching black earth. I. Effects of tillage

Soil Research ◽  
1989 ◽  
Vol 27 (3) ◽  
pp. 525 ◽  
Author(s):  
RJ Loch ◽  
TE Donnollan
Keyword(s):  
Overland Flow ◽  
Aggregate Size ◽  
Size Distributions ◽  
Silt Loam ◽  
Rill Erosion ◽  
Tillage Practices ◽  
Sediment Size ◽  
Stubble Retention ◽  
Silt Loam Soil ◽  
Loam Soil

The effects of three tillage treatments-rough-, fine- and zero-tilled-on rill erosion of a bare, self-mulching black earth were tested to determine whether tillage practices could reduce susceptibility of such soils to entrainment and transport by overland flow. In contrast to reported results for a silt loam soil, rill erosion was greatest for zero-tilled soil, and similar for the two tilled treatments. Sediment size distributions were independent of initial dry aggregate size distributions. It seems that, for self-mulching soils, stubble retention is the only method available to increase resistance to erosion by overland flow.

scholarly journals VEGETATIVE GROWTH AND NUTRIENT LEVELS OF LINGONBERRIES GROWN IN FOUR ALASKAN SUBSTRATES

1982 ◽  
Vol 62 (4) ◽  
pp. 969-977 ◽  
Author(s):  
PATRICIA S. HOLLOWAY ◽  
ROBERT M. VAN VELDHUIZEN ◽  
CECIL STUSHNOFF ◽  
DAVID K. WILDUNG
Keyword(s):  
Vegetative Growth ◽  
Sandy Loam ◽  
Leaf Size ◽  
Maximum Growth ◽  
Stem Length ◽  
Dry Matter Accumulation ◽  
Silt Loam ◽  
Tissue Samples ◽  
Silt Loam Soil ◽  
Loam Soil

Vegetative growth of lingonberries was observed on plants growing in four unsterilized, native-Alaskan substrates: coarsely-ground Lemeta peat, Fairbanks silt loam soil, a mixture of peat and silt loam soil and washed Chena very fine sandy loam soil. Following three growing seasons, plants in the peat treatment showed the greatest increase in vegetative growth as revealed by the number of new stems produced, stem length and dry weight per plant. Leaf size did not differ among substrate treatments. The leaves on plants grown in the peat substrate remained green throughout the entire experiment. The leaves of plants in all other treatments showed varying degrees of chlorosis followed by reddening and necrosis. Differences in concentration of N, P, K, Mn, Fe, Zn and Al in whole-plant tissue samples were recorded. The results indicate lingonberries should be grown in a peat substrate for maximum growth and dry matter accumulation.

Lignin-based Hydrogel for Water Retention in Silt Loam Soil

2021 ◽  
Author(s):  
Toby A Adjuik ◽  
Sue E Nokes ◽  
Michael D Montross ◽  
Ole Wendroth
Keyword(s):  
Water Retention ◽  
Silt Loam ◽  
Silt Loam Soil ◽  
Loam Soil
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