Alfalfa establishment without tillage as influenced by insecticide and vegetation suppression

Roth, Grégory; Wolf, Douglas A.; Hagood, Edward S.

doi:10.1111/j.1365-2494.1985.tb01779.x

Cited by 3 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The date of seeding (mid-February or mid-March) did not consistently a1fect the growth of alfalfa, as excellent yields resulted from both dates. In Virginia (12), greater alfalfa yields were obtained when seeded in late April as compared to early April or August.…”

Section: Discussionmentioning

confidence: 98%

“…C OOL SEASON LEGUMES (especially alfalfa) in the southeastern USA have traditionally been established in late summer or early autumn (3,6). Recent studies have demonstrated that insects (I ,4,5, 11 ), disease (6), and/or moisture supply (5,11,12) may limit autumn establishment of alfalfa. Establishment by conventional tillage in spring (April or May) frequently results in stand failure or poor growth of the alfalfa the I st yr, due to early summer moisture stress and extreme weed competition.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Late‐Winter No‐Till Seeding of Alfalfa into Autumn‐Suppressed Tall Fescue

et al. 1990

View full text Add to dashboard Cite

Alfalfa (Medicago sativa L.) has traditionally been established in the autumn in the southeastern USA, even though insects, disease, and/or moisture supply may limit successful conventional or notillage establishment. In previous studies, late‐winter (February or March) no‐till seedings failed because chemicals applied at time of seeding failed to suppress the grass. The objective of this study was to evaluate autumn chemical suppression and/or killing of tall fescue (Festuca arundinacea Schreb. ‘Kentucky 31’), late‐winter seeding date (February or March), and weed control in the seeding year on no‐till establishment of ‘Cimarron’ alfalfa into a tall fescue dominant sward. Three, 2‐yr field experiments were conducted during 1985 to 1987 on Typic Hapludult soils. Common to all experiments was a 23 factorial arrangement of treatments consisting of; (i) two late‐winter seeding dates of alfalfa, mid‐February or mid‐March, (ii) autumn applied paraquat (1‐1′‐dimethyl‐4,4′‐bipyridinium ion) at 0.28 kg ha−1 a.i. or glyphosate [N‐(phosphonomethyl) glycine] at 2.24 kg ha−1 a.i. for grass suppression, and (iii) the use of no weed control in the seeding year vs. weed control during the seeding year. A no‐grass suppression treatment was included for each seeding date. Insect grazing damaged 15% of the alfalfa seedlings, with an average damage per plant of 4%. Autumn grass suppression followed by late‐winter (February or March) no‐till seeding of alfalfa resulted in alfalfa yields of 6.77 Mg ha−1 as compared to no‐grass suppression yields of 3.27 Mg ha−1 for the seeding year. Weed control in the seeding year increased alfalfa yields in the March seeding 2.51 Mg ha−1 as compared to no‐weed control in the seeding year. We conclude that late‐winter (February or March) no‐till seeding alfalfa into a cool‐season perennial grass sward in the southeast region of the USA is an excellent alternative to autumn providing the grass is killed in the autumn prior to seeding.

show abstract

Section: Discussionmentioning

confidence: 98%

mentioning

confidence: 99%

Late‐Winter No‐Till Seeding of Alfalfa into Autumn‐Suppressed Tall Fescue

et al. 1990

View full text Add to dashboard Cite

show abstract

Herbicide Treatments for No-Till Alfalfa, Medicago sativa L., Establishment in Sod

Hagood

1988

Weed technol.

View full text Add to dashboard Cite

Field experiments were established to evaluate the effect of herbicide treatments on control of tall fescue before spring or fall no-till alfalfa planting and to determine the effect of fescue control on alfalfa seedling establishment, forage yield, and forage quality. No treatment provided significantly greater tall fescue control than the standard two applications of paraquat at 13- to 21-day intervals. Fescue control values with this treatment ranged from 86 to 99% over experiments and were associated with maximum values for alfalfa ground-cover and alfalfa yield percentage parameters, 52 to 83% and 64 to 96%, respectively. Glyphosate and SC-0224 at 2.2 kg/ha and greater generally gave tall fescue control equivalent to the paraquat treatment in both spring and fall seedings as did sethoxydim at 0.6 kg/ha in spring seedings. Applications of fluazifop or HOE-0661 did not result in satisfactory tall fescue control or alfalfa establishment. Adding nonionic surfactant to glyphosate or SC-0224 did not increase tall fescue control. There was a direct linear relationship between tall fescue control and both alfalfa seedling establishment and yield percentage.

show abstract

Effects of sowing date, placement of seed, vegetation suppression, slugs, and insects upon establishment of no‐till alfalfa in orchardgrass sod†

Byers¹,

Templeton

1988

Grass and Forage Science

View full text Add to dashboard Cite

Four treatments designed to affect some environmental factors during germination and establishment of alfalfa were: two sowing dates (March and May) to produce differences in temperature, light and soil moisture; two sowing methods (notill drill and hand sowing) for creating different degrees of soil-seed contact; mowing and banded and broadcast sprays of glyphosate to produce varying degrees of plant competition; and methiocarb bait combined with carbofuran granules vs. no pesticide to establish different levels of invertebrate feeding.Alfalfa dry matter (DM) production was affected very little by sowing date in two identical experiments. It was unaffacted by sowing method in experiment 1 (1983) but was significantly higher when alfalfa was sown with a drill in the second trial (1984). Highest alfalfa DM yields were achieved when competition was suppressed by broadcast spraying rather than bands, but details of effect differed in the two experiments.Pesticide treatments yielded more alfalfa DM in the year of establishment. Slugs, Deroceras laeve (MuUer) and D. reticulatum (Mtiller), and

show abstract

Alfalfa establishment without tillage as influenced by insecticide and vegetation suppression

Cited by 3 publications

References 11 publications

Late‐Winter No‐Till Seeding of Alfalfa into Autumn‐Suppressed Tall Fescue

Late‐Winter No‐Till Seeding of Alfalfa into Autumn‐Suppressed Tall Fescue

Herbicide Treatments for No-Till Alfalfa, Medicago sativa L., Establishment in Sod

Effects of sowing date, placement of seed, vegetation suppression, slugs, and insects upon establishment of no‐till alfalfa in orchardgrass sod†

Contact Info

Product

Resources

About