Evaluation of Different Weed Control Techniques in Soyabean (Glycine max L.Merr) Production

2010 ◽  
Vol 6 (1) ◽  
Author(s):  
JK Omisore ◽  
JA Olofintoye
Keyword(s):  
Glycine Max ◽  
Weed Control ◽  
Control Techniques

scholarly journals PENGARUH ALELOPATI SERESAH DAUN BAMBU (Dendrocalamus asper) PADA PERKECAMBAHAN KEDELAI (Glycine max L. Merril)

2019 ◽  
Vol 6 (1) ◽  
pp. 16
Author(s):  
Lutfy Ditya Cahyanti
Keyword(s):  
Glycine Max ◽  
Sustainable Agriculture ◽  
Weed Control ◽  
Leaf Litter ◽  
Growth And Development ◽  
Control Techniques ◽  
Randomized Design ◽  
Sprout Length ◽  
Glycine Max L ◽  
Dendrocalamus Asper

<p><em>Weeds are an important factor in the decline of soybean  production. One of weed control techniques that can be done is to use alelopati as an bioherbicide. One source of allelopathy that can be utilized as bioherbicide is bamboo leaf litter. Problems arise if this alelopati also affect the pattern of germination cultivation plants because one of the main requirements of bioherbisida is not to affect the growth and development of crops. The purpose of this study was to determine whether leaf litter alelopathy would affect the germination of soybeans. The hypothesis this research is that bamboo leaf litter alelopathy will not affect the germination of soybean crops so it will be safe to use as a pre-plant bioherbicide. The treated treatment is without litter solution of bamboo leaf, and dosage of 5%, 10%, and 15% bamboo leaf litter solution. The design used was a complete non factorial randomized design with 5x replication. The conclusion of this research is the treatment of allelopathy given by application of bamboo leaf litter with various doses has no significant effect on the germination, sprout length, and germination time of soybean crop, so that bamboo leaf litter solution is safe to be used as bioherbicide on sustainable agriculture.</em></p>

Weed Control with Reduced Rates of Chlorimuron Plus Metribuzin and Imazethapyr in No-Till Narrow-Row Soybean (Glycine max)

1998 ◽  
Vol 12 (1) ◽  
pp. 32-36 ◽  
Author(s):  
William G. Johnson ◽  
Jeffrey S. Dilbeck ◽  
Michael S. Defelice ◽  
J. Andrew Kendig
Keyword(s):  
Glycine Max ◽  
Weed Control ◽  
Field Studies ◽  
Weed Suppression ◽  
Crop Response ◽  
Soybean Production ◽  
No Till ◽  
Giant Foxtail ◽  
The Difference ◽  
Narrow Row

Field studies were conducted at three locations in 1993 and 1994 to evaluate weed control and crop response to combinations of glyphosate, metolachlor, 0.5 X and 1 X label rates of chlorimuron plus metribuzin applied prior to planting (PP), and 0.5 X and 1 X label rates of imazethapyr applied early postemergence (EPOST) or postemergence (POST) in no-till narrow-row soybean production. Giant foxtail densities were reduced with sequential PP followed by (fb) EPOST or POST treatments. Large crabgrass was reduced equivalently with all herbicide combinations involving chlorimuron plus metribuzin PP fb imazethapyr. Common cocklebur control was variable but was usually greater with treatments that included imazethapyr. Ivyleaf morningglory densities were not reduced with any herbicide combinations. Sequential PP fb EPOST or POST treatments tended to provide slightly better weed suppression than PP-only treatments, but the difference was rarely significant. Soybean yields with treatments utilizing 0.5 X rates were usually equal to 1 X rates.

Effect of herbicides on the weed infestation and grain yield of soybean (Glycine max)

2004 ◽  
Vol 52 (2) ◽  
pp. 199-203 ◽  
Author(s):  
G. Singh ◽  
R. S. Jolly
Keyword(s):  
Glycine Max ◽  
Grain Yield ◽  
Weed Control ◽  
Negative Correlation ◽  
Rainy Season ◽  
Dry Matter ◽  
Field Experiments ◽  
Sand Soil ◽  
Loamy Sand Soil ◽  
Weed Infestation

Two field experiments were conducted during the kharif (rainy) season of 1999 and 2000 on a loamy sand soil to study the effect of various pre- and post-emergence herbicides on the weed infestation and grain yield of soybean. The presence of weeds in the weedy control plots resulted in 58.8 and 58.1% reduction in the grain yield in the two years compared to two hand weedings (HW) at 30 and 45 days after sowing (DAS), which gave grain yields of 1326 and 2029 kg ha-1. None of the herbicides was significantly superior to the two hand weedings treatment in influencing the grain yield. However, the pre-emergence application of 0.75 kg ha-1 S-metolachlor, and 0.5 kg ha-1 pendimethalin (pre-emergence) + HW 30 DAS were at par or numerically superior to this treatment. There was a good negative correlation between the weed dry matter at harvest and the grain yield of soybean, which showed that effective weed control is necessary for obtaining higher yields of soybean.

Preplant Weed Control in a Ridge-Till Soybean (Glycine max) and Grain Sorghum (Sorghum bicolor) Rotation

1989 ◽  
Vol 3 (4) ◽  
pp. 621-626 ◽  
Author(s):  
David L. Regehr ◽  
Keith A. Janssen
Keyword(s):  
Glycine Max ◽  
Sorghum Bicolor ◽  
Weed Control ◽  
Grain Sorghum ◽  
Planting Time ◽  
Common Lambsquarters ◽  
Weed Growth ◽  
Herbicide Treatments ◽  
Dry Down ◽  
Sorghum Grain

Research in Kansas from 1983 to 1986 evaluated early preplant (30 to 45 days) and late preplant (10 to 14 days) herbicide treatments for weed control before ridge-till planting in a soybean and sorghum rotation. Control of fall panicum and common lambsquarters at planting time averaged at least 95% for all early preplant and 92% for late preplant treatments. Where no preplant treatment was used, heavy weed growth in spring delayed soil dry-down, which resulted in poor ridge-till planting conditions and reduced plant stands, and ultimately reduced sorghum grain yields by 24% and soybean yields by 12%. Horsenettle population declined significantly, and honeyvine milkweed population increased. Smooth groundcherry populations fluctuated from year to year with no overall change.

Soybean (Glycine max) Response to Thifensulfuron and Bentazon Combinations

1998 ◽  
Vol 12 (1) ◽  
pp. 179-184 ◽  
Author(s):  
Stephen E. Hart ◽  
Gordon K. Roskamp
Keyword(s):  
Glycine Max ◽  
Grain Yield ◽  
Weed Control ◽  
Field Studies ◽  
Soybean Yield

Field studies were conducted in 1995 and 1996 at three locations in Illinois to determine soybean response to combinations of thifensulfuron and bentazon. Thifensulfuron was applied at 2.2 to 8.8 g ai/ha alone or in combination with 280 to 560 g/ha of bentazon. Soybean injury 30 d after treatment ranged from 0 to 22% when thifensulfuron was applied alone at 2.2 g/ha. Increasing thifensulfuron rate to 8.8 g/ha increased soybean injury to a range of 12 to 44%. Soybean grain yield was significantly reduced compared to the yield of untreated soybean when thifensulfuron was applied at 4.4 and 8.8 g/ha in two of five and four of five experiments, respectively. The addition of bentazon to thifensulfuron consistently reduced soybean injury and stunting. In many cases, increasing the bentazon rate to 420 g/ha decreased soybean injury from thifensulfuron to a greater extent than 280 g/ha. In cases where thifensulfuron decreased soybean yield, the addition of 420 or 560 g/ha of bentazon restored yields to levels that were not lower than untreated soybeans. These studies demonstrate that thifensulfuron at 2.2 to 8.8 g/ha in combination with bentazon at 420 g/ha may be safely applied to soybean for broadleaf weed control.

Comparison of Six Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Weed Science ◽  
1983 ◽  
Vol 31 (1) ◽  
pp. 63-67 ◽  
Author(s):  
P. E. Keeley ◽  
R. J. Thullen ◽  
J. H. Miller ◽  
C. H. Carter
Keyword(s):  
Solanum Tuberosum ◽  
Glycine Max ◽  
Hordeum Vulgare ◽  
Control Systems ◽  
Weed Control ◽  
Cropping Systems ◽  
Cyperus Esculentus ◽  
Similar Reduction ◽  
Yellow Nutsedge ◽  
Double Cropping

Six cropping/weed control systems were evaluated from 1978 to 1980 for the control of yellow nutsedge (Cyperus esculentusL.). Supplementing cultivation of cotton (Gossypium hirsutumL. ‘Acala SJ-2′) with either preplant applications of fluridone {1 - methyl - 3 - phenyl - 5 - [3 - (trifluoromethyl)phenyl] -4(1H-pyridinone} or two hoeings for 2 yr preceding cotton treated with DSMA (disodium methanearsonate) and MSMA (monosodium methanearsonate) reduced populations of viable yellow nutsedge tubers 98 to 99% within 3 yr. Dry- or wet - fallowing plus tillage after barley (Hordeum vulgareL. ‘Kombyne’), and double cropping potatoes (Solanum tuberosumL. ‘White Rose’) treated with EPTC (S-ethyl dipropylthiocarbamate) with soybeans [Glycine max(L.) Merr. ‘Williams’] treated with alachlor [2-chloro - 2′, 6’ - diethyl -N- (methoxymethyl)acetanilide] for 2 yr preceding cotton, reduced populations of tubers 98 to 99% within 3 yr. A similar reduction of tubers (97%) was obtained by double cropping potatoes with milo [Sorghum bicolor(L.) Moench. ‘NK- 265′] for 2 yr preceding cotton.

Influence of Shading by Soybeans (Glycine max) on Weed Suppression

Weed Science ◽  
1981 ◽  
Vol 29 (5) ◽  
pp. 610-615 ◽  
Author(s):  
T. R. Murphy ◽  
B. J. Gossett
Keyword(s):  
South Carolina ◽  
Glycine Max ◽  
Weed Control ◽  
Field Studies ◽  
Weed Suppression ◽  
Planting Dates ◽  
Early Season ◽  
Soybean Yield ◽  
Annual Weeds

Field studies were conducted at Florence and Clemson, South Carolina to measure the influence of soybean [Glycine max(L.) Merr.] planting dates on the length of early-season weed control needed to prevent yield reductions, the rate of shade development, and suppression of annual weeds by soybeans. The rate of shade development was similar for both planting dates during the 9- to 11-week period after planting for Florence and Clemson, respectively. The period of weed-free maintenance required to prevent soybean yield reductions was not affected by planting dates. With cultivation between rows, early- and late-planted soybeans required 3 weeks of weed-free maintenance to achieve maximum yields. Lower weed weights resulted from late than early soybean plantings. At Clemson, 3 weeks of weed-free maintenance for early and late plantings reduced weed weights 97 and 91%, respectively. Weed weights at Florence were reduced 85% with 3 weeks of weed-free maintenance for the late plantings, whereas 5 weeks were required to reduce weed weights 88% for early plantings.

Weed Control from Imazaquin and Metolachlor in No-till Soybeans (Glycine max)

Weed Science ◽  
1989 ◽  
Vol 37 (3) ◽  
pp. 392-399 ◽  
Author(s):  
Douglas D. Buhler ◽  
Virginia L. Werling
Keyword(s):  
Glycine Max ◽  
Weed Control ◽  
Untreated Control ◽  
Growing Season ◽  
Common Lambsquarters ◽  
No Till ◽  
Herbicide Treatments

In 1985, when weed densities were low (169 plants/m2in untreated control), imazaquin applied at 0.07 kg ai/ha early preplant controlled over 90% of all weeds before no-till planting of soybeans. In 1986 and 1987 when weed densities were higher (589 plants/m2in untreated control), addition of 1.1 kg ai/ha or more of metolachlor to imazaquin (0.07 kg/ha) before soybean planting controlled 95% or more of the grass weeds and 83% or more of the broadleaf weeds. Imazaquin plus metolachlor applied less than 1 day after soybean planting controlled less than 70% of the emerged weeds in 1986 and 1987; common lambsquarters was most tolerant. Early preplant treatments controlled more weeds throughout the growing season than treatments applied after planting. Splitting herbicide treatments among application times generally did not increase weed control compared to single applications. Early preplant applications resulted in higher soybean densities and taller soybeans 30 days after planting in 1986 and 1987 than treatments applied after planting. Soybean yields increased as weed control increased. Weed control and soybean yields were greater with early preplant treatments than paraquat plus alachlor plus metribuzin applied preemergence in 1986 and 1987. No carryover of imazaquin residue was detected through corn bioassay in the field.

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