scholarly journals Performance of Willow Clones on Sharkey Clay

1983 ◽  
Author(s):  
Robert B. Ferguson
Keyword(s):  
Sharkey Clay

Effect of tillage on microbial characteristics and herbicide degradation in a Sharkey clay soil

Weed Science ◽  
2001 ◽  
Vol 49 (5) ◽  
pp. 685-693 ◽  
Author(s):  
Simone Seifert ◽  
David R. Shaw ◽  
Robert M. Zablotowicz ◽  
Richard A. Wesley ◽  
William L. Kingery
Keyword(s):  
Clay Soil ◽  
Herbicide Degradation ◽  
Microbial Characteristics ◽  
Sharkey Clay

Hemp Sesbania (Sesbania exaltata) Competition in Soybeans (Glycine max)

Weed Science ◽  
1979 ◽  
Vol 27 (1) ◽  
pp. 58-64 ◽  
Author(s):  
C. G. McWhorter ◽  
J. M. Anderson
Keyword(s):  
Glycine Max ◽  
Critical Period ◽  
Soybean Seed ◽  
Foreign Material ◽  
Early Season ◽  
Competitive Effects ◽  
Sesbania Exaltata ◽  
Sharkey Clay ◽  
Hemp Sesbania

The competitive effects of hemp sesbania [Sesbania exaltata(Raf.) Cory] on soybeans [Glycine max(L.) Merr. ‘Forrest’] were studied on Sharkey clay for 2 yr. In full-season competition, hemp sesbania populations of 1,600, 3,200, 3,900, and 5,500 plants/ha did not reduce adjusted soybean yields, but populations of 8,100 to 129,200 plants/ha reduced yields 10 to 80%. Competition by hemp sesbania at 68,000 plants/ha for 1 to 4 weeks after soybean emergence reduced soybean yields 8% or less, whereas competition by the same population for 6, 8, and 10 weeks after soybean emergence reduced adjusted yields 18, 27, and 43%, respectively. Hemp sesbania populations of 3,200 plants/ha or more reduced the grade of harvested soybeans and populations of 5,500 plants/ha increased the level of foreign material found in seed samples taken at harvest. Hemp sesbania populations above 10,700 plants/ha increased the levels of damaged kernels and moisture in harvested soybean seed. Early-season control was required for highest soybean yields and total returns. The most critical period for control was 4 to 10 weeks after emergence of soybeans.

scholarly journals EVALUATION OF SEED TREATEMENTS ON A SHARKEY CLAY SOIL, 2001

2002 ◽  
Vol 27 (1) ◽  
Author(s):  
R. Costello ◽  
E. Burris ◽  
K. Sanders
Keyword(s):  
Clay Soil ◽  
Sharkey Clay

Oak Seeding—It Can Work

1981 ◽  
Vol 5 (1) ◽  
pp. 28-33 ◽  
Author(s):  
R. L. Johnson
Keyword(s):  
Clay Soil ◽  
Mississippi Delta ◽  
Ground Level ◽  
Average Height ◽  
Quercus Nuttallii ◽  
Direct Seeded ◽  
Sharkey Clay ◽  
Forest Openings

Abstract Nearly 20,000 acorns of Nuttall oak (Quercus nuttallii Palmer) were direct-seeded in Sharkey clay soil in the Mississippi Delta. Acorns sown 1 inch deep in January gave significantly better germination, 55 percent of total sown, than did eight other combinations of three storage treatments with three sowing depths. Rodents destroyed most acorns sown in the understory and in forest openings <1/10-acre but hardly bothered acorns sown in 350-foot square forest openings cleared to ground level. After 10 years in the larger areas, 75 percent of the seedspots, spaced at 5- x 10-feet and sown with four acorns each, were stocked with one or more living trees. About one-third of the oaks were in a free-to-grow position. Average height and d.b.h. of the largest oaks, one from each of 162 treatment rows, were 17.8 feet and 1.8 inches. Five-foot wide strips were mowed between the 10-foot spacing. After 10 years, there were 14,142 total trees per unmowed acre.

Tolerance of Three Soybean (Glycine max) Cultivars to Metribuzin

Weed Science ◽  
1982 ◽  
Vol 30 (4) ◽  
pp. 344-348 ◽  
Author(s):  
William L. Barrentine ◽  
Edgar E. Hartwig ◽  
Calton J. Edwards ◽  
Thomas C. Kilen
Keyword(s):  
Glycine Max ◽  
Field Studies ◽  
Field Conditions ◽  
Silt Loam ◽  
Nutrient Culture ◽  
Parent Selection ◽  
Sharkey Clay ◽  
Dinitroaniline Herbicides

‘Tracy′, ‘Tracy-M′, and ‘Centennial′, soybean [Glycine max(L.) Merr.] cultivars were evaluated under greenhouse and field conditions for their tolerance to metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5 (4H)-one]. The I50(50% injury) concentration of metribuzin, as determined in nutrient culture, for Tracy-M was more than three times the I50for Tracy, but was equivalent to the I50for Centennial. Data from greenhouse and field studies on Sharkey clay and Dundee silt loam soils indicated that Tracy-M was more tolerant to metribuzin than its parent selection, Tracy, but no more tolerant than Centennial when metribuzin was applied preplant soil incorporated or surface preemergence alone or in combination with several dinitroaniline herbicides.

scholarly journals Evaluation of Thrips Densities in At-Planting Seed and Soil Treatments on Sharkey Clay, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 243-243
Author(s):  
D. R. Cook ◽  
E. Burris ◽  
B. R. Leonard ◽  
J. B. Graves
Keyword(s):  
Sharkey Clay
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