TY - JOUR
T1 - Management of warm-season annual grass residue on annual ryegrass establishment and production
AU - Cuomo, Gregory J.
AU - Redfearn, Daren D.
AU - Beatty, J. F.
AU - Anders, R. A.
AU - Martin, F. B.
AU - Blouin, David C.
PY - 1999
Y1 - 1999
N2 - Early-season forage production of annual ryegrass (Lolium multiflorum Lam.) is reduced in the southeastern USA when established no-till rather than with conventional tillage. We hypothesized that annual warm-season grass residue interferes with seedling establishment under no-till. In a two-year study, we evaluated six strategies for managing residue from warm-season annual grass on annual ryegrass establishment, forage production, and soil moisture. Treatments were (i) no herbicide, mow, and leave residue; (ii) tillage 30 and 7 d before planting; (iii) apply glyphosate [isopropylamine salt of N(phosphonomethyl)glycine] 30 d before planting, mow, and leave residue; (iv) apply glyphosate 7 d before planting, mow, and leave residue; (v) apply glyphosate 7 d before planting, apply additional residue from twice the plot area (i.e., three times the other residue treatments); and (vi) apply glyphosate 7 d before planting, burn residue 1 d before planting. Better stands and more forage production at first harvest of annual ryegrass were obtained by spraying and burning residue (two-year average of 96% stand and 0.92 Mg ha-1 yield at the first harvest) or spraying 30 d before planting (92% stand, 0.92 Mg ha-1) than when annual ryegrass was planted into a 3x residue (55% stand, 0.24 Mg ha-1). Soil moisture at planting did not cause differences in stand establishment among treatments. We conclude that managing residue during no-till establishment by controlling warm-season annual grasses and burning or controlling warm-season annual grasses 30 d before planting can improve stands and forage production of annual ryegrass.
AB - Early-season forage production of annual ryegrass (Lolium multiflorum Lam.) is reduced in the southeastern USA when established no-till rather than with conventional tillage. We hypothesized that annual warm-season grass residue interferes with seedling establishment under no-till. In a two-year study, we evaluated six strategies for managing residue from warm-season annual grass on annual ryegrass establishment, forage production, and soil moisture. Treatments were (i) no herbicide, mow, and leave residue; (ii) tillage 30 and 7 d before planting; (iii) apply glyphosate [isopropylamine salt of N(phosphonomethyl)glycine] 30 d before planting, mow, and leave residue; (iv) apply glyphosate 7 d before planting, mow, and leave residue; (v) apply glyphosate 7 d before planting, apply additional residue from twice the plot area (i.e., three times the other residue treatments); and (vi) apply glyphosate 7 d before planting, burn residue 1 d before planting. Better stands and more forage production at first harvest of annual ryegrass were obtained by spraying and burning residue (two-year average of 96% stand and 0.92 Mg ha-1 yield at the first harvest) or spraying 30 d before planting (92% stand, 0.92 Mg ha-1) than when annual ryegrass was planted into a 3x residue (55% stand, 0.24 Mg ha-1). Soil moisture at planting did not cause differences in stand establishment among treatments. We conclude that managing residue during no-till establishment by controlling warm-season annual grasses and burning or controlling warm-season annual grasses 30 d before planting can improve stands and forage production of annual ryegrass.
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U2 - 10.2134/agronj1999.914666x
DO - 10.2134/agronj1999.914666x
M3 - Article
AN - SCOPUS:0032879274
SN - 0002-1962
VL - 91
SP - 666
EP - 671
JO - Agronomy Journal
JF - Agronomy Journal
IS - 4
ER -