Dynamics and losses of soil organic matter and nutrients by water erosion in cover crop management systems in olive groves, in tropical regions

Influences of a hairy vetch cover crop and residual herbicides were examined in field corn in 1991 and 1992. Hairy vetch was seeded in mid-August and killed the following May with tillage, mowing, or glyphosate plus 2,4-D (no-till). These cover crop management systems were compared with a no-cover treatment. Residual herbicides including atrazine plus metolachlor applied PRE at three rates and nicosulfuron plus thifensulfuron applied POST at a single rate were compared within cover crop management systems. All cover crop management systems effectively controlled hairy vetch except mowing in 1992. The corn population was reduced in mow treatments containing uncontrolled vetch. Hairy vetch mulch suppressed some weeds in the no-till treatments in 1991, but more annual grass was noted late in the season with no-till into hairy vetch than with the no-cover treatments in 1992. Residual herbicide performance was similar across cover crop management systems, except for fall panicum control which decreased in some no-till systems. Unlike soil-applied herbicides, performance of POST herbicides was unaffected by cover crop management systems.

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Short-term Effects of Cover Crop Management on Soil Organic Matter and Soil Alteration Index Three in the Western Cape Province

SETWM-20, ACBES-20 & EEHSS-20 Nov. 16-17, 2020 Johannesburg (SA) ◽

10.17758/eares10.eap1120123 ◽

2020 ◽

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Cover Crop ◽

Crop Management ◽

Western Cape ◽

Western Cape Province ◽

Short Term ◽

Short Term Effects

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Properties of Soil in Orchard as Influenced by Travel and Cover Crop Management Systems 1

Agronomy Journal ◽

10.2134/agronj1963.00021962005500020030x ◽

1963 ◽

Vol 55 (2) ◽

pp. 188-191 ◽

Cited By ~ 3

Author(s):

D. E. Miller ◽

Wm. C. Bunger ◽

E. L. Proebsting

Keyword(s):

Cover Crop ◽

Crop Management ◽

Management Systems ◽

Crop Management Systems ◽

Properties Of Soil

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PHYSICAL SOIL ATTRIBUTES IN DIFFERENT EUCALYPTUS CROP MANAGEMENT SYSTEMS IN WESTERN MATO GROSSO, BRAZIL

FLORESTA ◽

10.5380/rf.v50i4.57466 ◽

2020 ◽

Vol 50 (4) ◽

pp. 1679

Author(s):

Elyson Thiago De Souza Florentim ◽

Helen Caroline Rodrigues Correa ◽

Paloma Emanuela Braga Martins ◽

Fulvianny Cristina da Silva ◽

Walmes Marques Zeviani ◽

...

Keyword(s):

Weed Control ◽

Cover Crop ◽

Crop Management ◽

Soil Management ◽

Management Systems ◽

Mato Grosso ◽

Soil Attributes ◽

Eucalyptus Forest ◽

Forest Establishment ◽

Crop Management Systems

Physical soil attributes in different eucalyptus crop management systems in western Mato Grosso, Brazil. The aim of this study was to determine the effect of four soil management systems on the physical attributes of an Oxisol for Eucalyptus crops in western Mato Grosso, Brazil. The management systems are differentiated by the soil preparation form during the implantation and initial forest establishment phases, namely a conventional system (plowing, harrowing and subsoiling for preparation and harrows for weed control after planting ) and a conservationist system (pasture desiccation, subsoiling, herbicide weed control and cover crop), with added differences in the eucalyptus fertilizer supply manner (haul and furrow). Nine soil layers were sampled continuously for each management system in between the sowing lines using 100 cm³ volumetric rings (0.05 m in diameter and height), totaling a studied layer of 0.45 m. The following variables were evaluated: total pore volume, microporosity, macroporosity, density and soil resistance to penetration. The different managements did not lead to significant differences for the studied attributes two years after forest establishment, with only a small depth effect observed. The attribute values are within the appropriate limits for eucalyptus crop development, indicating good soil quality under the eucalyptus forest for the study conditions.Keywords: Cover crop, Eucalyptus, soil management, soil penetration resistance.

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