Weed Management in the Soybean Crop

Multivariate analysis using a discriminant method for evaluating the techniques of weed management in soybean crop

Planta Daninha ◽

10.1590/s0100-83582020380100077 ◽

2020 ◽

Vol 38 ◽

Author(s):

Alexandre Bianchini ◽

Pedro V.D. Moraes ◽

Solon J. Longhi ◽

Paulo F. Adami ◽

Patricia Rossi ◽

...

Keyword(s):

Multivariate Analysis ◽

Weed Management ◽

Soybean Crop

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Performance of Crops Grown in Succession to Soybeans Treated with Different Residual Herbicides

Planta Daninha ◽

10.1590/s0100-83582018360100011 ◽

2018 ◽

Vol 36 (0) ◽

Author(s):

J.B. SOUSA ◽

M.B. TEIXEIRA ◽

A. JAKELAITIS ◽

F.N. CUNHA ◽

N.F. SILVA

Keyword(s):

Experimental Design ◽

Weed Management ◽

Residual Activity ◽

Residual Effect ◽

The Other ◽

Agronomic Performance ◽

Adzuki Bean ◽

Soybean Crop ◽

Manual Weeding ◽

Block Arrangement

ABSTRACT: Herbicides with residual effect applied in soybeans may affect the productivity of late harvest crops grown in succession. Thus, the objective of this research was to evaluate the agronomic performance of adzuki bean crops, crambe, millet and palisade grass pasture grown in succession to soybean crop treated with residual herbicides, as well as assess the contribution in weed management. Four trials were conducted in field conditions at the soybean crop in the harvest and then succeeded by adzuki bean crops, crambe, millet and palisade grass as late harvest. An experimental design was adopted in a randomized block arrangement with four replications and nine treatments represented by the application of residual herbicides: imazethapyr (1.0 and 1.5 L ha-1), chlorimuron (60 and 90 g ha-1), fomesafen (1.0 and 1.5 L ha-1) and chloransulan methyl (74.6 and 71.4 g ha-1) and without herbicide control, kept in manual weeding. The herbicides were efficient in weed control in soybeans, not affecting crop yield. However, there was no residual activity of herbicides contribution in reducing infestation in the late harvest crops. The herbicides did not promote phytotoxicity to crops of crambe, beans, millet and palisadegrass pasture when they were compared with the other treatments. The beans treated with methyl chloransulan, regardless of dose, showed a higher yield. The absence of phytotoxicity to crops can be associated with rainfall incident on soybens which contributed to the dissipation of herbicides.

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Weed Management in Small Grains Harvested for Grain

EDIS ◽

10.32473/edis-wg009-2020 ◽

2020 ◽

Vol 2020 (3) ◽

Author(s):

Jason Ferrell ◽

Gregory MacDonald ◽

Pratap Devkota

Keyword(s):

Weed Control ◽

Weed Management ◽

Chemical Control ◽

Management Practices ◽

Good Management ◽

Small Grains ◽

Crop Competition

Successful weed control in small grains involves using good management practices in all phases of production. In Florida, winter weeds compete with small grains for moisture, nutrients, and light, with the greatest amount of competition occurring during the first six to eight weeks after planting. Weeds also cause harvest problems the following spring when the small grain is mature. This 4-page publication discusses crop competition, knowing your weeds, and chemical control. Written by J. A. Ferrell, G. E. MacDonald, and P. Devkota, and published by the UF/IFAS Agronomy Department, revised May 2020.

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Weed Management in Peanuts

EDIS ◽

10.32473/edis-wg008-2020 ◽

2020 ◽

Vol 2020 (3) ◽

Author(s):

Pratap Devkota

Keyword(s):

Weed Control ◽

Weed Management ◽

Management Practices ◽

Application Rate ◽

Good Management ◽

Peanut Production

Successful weed control in peanuts involves use of good management practices in all phases of peanut production. This 11-page document lists herbicide products registered for use in Florida peanut production, their mode of actions group, application rate per acre and per season, and reentry interval. It also discusses the performance of these herbicides on several weeds under Florida conditions. Written by J. A. Ferrell, G. E. MacDonald, and P. Devkota, and published by the UF/IFAS Agronomy Department, revised May 2020.

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