scholarly journals Advances in mechanical weed control technologies

2022 ◽  
Author(s):  
Bo Melander ◽  
◽  
Margaret R. McCollough ◽  
Keyword(s):  
Weed Control ◽  
Full Width ◽  
Control Technologies ◽  
Mechanical Devices ◽  
Mechanical Weed Control

Mechanical weed control can be grouped into three categories: full-width cultivators, inter-row cultivators and intra-row cultivators. This chapter will highlight the most recent and relevant advances within each category. The focus will be on novel inventions and developments of mechanical devices, designs, and the weed problems they are meant to solve. Moreover, automation technologies that assist weeding operations are becoming increasingly important and will be given special attention.

scholarly journals The effect of different weed control technologies on yield of maize and profitability of maize production

2019 ◽  
Vol 7 (1-2) ◽  
pp. 72-76
Author(s):  
István Kristó ◽  
Gábor Vaczkó ◽  
Melinda Tar ◽  
Péter Jakab ◽  
László Hódi
Keyword(s):  
Plant Height ◽  
Weed Control ◽  
Seed Weight ◽  
Control Strategies ◽  
Corn Cob ◽  
Maize Production ◽  
Control Technologies ◽  
One Year ◽  
Mechanical Weed Control ◽  
Thousand Seed Weight

In our investigation, we used different weed control technologies in the different phenology states of the maize. The farm experiment has been carried out in 2017, in Hungary, Kunágota, on good quality chernozem soil, on 20 x 50 m plots. The experiment can be regarded as 9 weed-control strategies where, in addition to the untreated control, two chemicals are applied (Laudis, Capreno) in different doses, two mechanical weed-control technologies, and two combination of chemicals and mechanical weed-control technologies were used. Mechanical weed-control was connected to the herbicide treatments in different times: until 4-6-leaves age weedless, in 4-6-leaves age hoed once, in 4-6-leaves age cultivation once. In our farm experiment, there were assessed the number of plants, length of plants, leaf number of maize, corncob-number, corncob-length, line number of corncob, thousand seed weight yield and profitability of maize production. Our results were evaluated by a one-factor analysis of variance. Our one-year weed control experiment show that Capreno performed better, than Laudis with respect of plant height, number of leaves, length of corn-cob, number of lines of corn-cob, thousand seed weight and yield. By increasing the dose of Capreno, all the tested values of crop elements degraded except for plant height, so the crop yield also decreased.

scholarly journals The effect of different weed control technologies on weed species composition of maize

2019 ◽  
Vol 7 (1-2) ◽  
pp. 67-71
Author(s):  
Gábor Vaczkó ◽  
László Hódi ◽  
Melinda Tar ◽  
Péter Jakab ◽  
István Kristó
Keyword(s):  
Weed Control ◽  
Flat Surface ◽  
Control Strategies ◽  
Chernozem Soil ◽  
Weed Species ◽  
Chemical Efficiency ◽  
Herbicide Treatments ◽  
Control Technologies ◽  
Mechanical Weed Control ◽  
Different Doses

In our investigation we used different weed control technologies in the different phenology states of the maize. The farm experiment has been carried out in Hungary, Kunágota, on flat surface, homogeneous quality chernozem soil, on 1000 m2 plots, in 4 replications. The experiment can be regarded as 9 weed-control strategies where, in addition to the untreated control, two chemicals are applied (Laudis, Capreno) in different doses, two mechanical weed-control technologies, and two combination of chemicals and mechanicals weed-control technologies were used. Mechanical weed-control place connected to the herbicide treatments in different times: until 4-6-leave age weedless, in 4-6-leave age hoed once, in 4-6-leave age cultivation once. Our results were assessed by chemical efficiency examination in five periods. Our resoult show that the two tested herbicides were efficient against weeds. Laudis was more effective, than Capreno against Setaria pumila. The dose enlargement of Capreno only slightly increased the herbicidal efficiency. The decreased dosage of Capreno was not efficient enough against Abutilon theophrasti.

scholarly journals Demographic and Socioeconomic Factors Influencing Uptake of Striga Weed Control Technologies in Kenya

2021 ◽  
pp. 51-59
Author(s):  
Godfrey Nakitare Nambafu ◽  
Richard Ndemo Onwonga
Keyword(s):  
Socioeconomic Factors ◽  
Weed Control ◽  
New Technologies ◽  
Control Strategies ◽  
Sampling Technique ◽  
Modern Technology ◽  
Sample Population ◽  
Population Type ◽  
Control Technologies ◽  
Land Size

Over the years, new technologies have been tested and introduced to control Striga in maize producing areas but adoption has remained low. The study done in 2013, determined the demographic and socioeconomic factors that influenced the adoption of Striga control technologies in Kisumu West, Bumula and Teso South sub counties of Western Kenya. Through Multi stage sampling technique, 40 households were selected per sub county for questionnaire administration; to gather information on demographic profiles of the sample population, type of fertilizer and seed variety used, income of the household, source of credit facilities and challenges faced in weed control. Chi square test at P<0.05 and logistic regression analysis, using R software was used to determine the relationship between demographic and socioeconomic factors and uptake of Striga control technologies. Farmers cited high cost, poor availability of improved varieties and lack of adequate knowledge as reasons for non-adoption of the Striga control strategies. Farmer’s age, education, land size and hiring of labour were found to significantly influence the adoption of the Striga control technologies. The low levels of adoption of modern technology indicate that they were not meeting farmers’ expectations, thus, researchers should put into consideration farmers’ education, age, land size and ability to high labour in their planning for an informed technology adoption. In addition, alternative options should be extended to farmers who are not able to use expensive technologies.

scholarly journals Economic and Horticultural Evaluation of Chemical and Mechanical Weed Control Strategies for Cowpea

1992 ◽  
Vol 117 (2) ◽  
pp. 255-259
Author(s):  
Brian A. Kahn ◽  
Raymond Joe Schatzer
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Control Strategies ◽  
Dry Weight ◽  
Farm Income ◽  
Control Chemical ◽  
Biological Yield ◽  
Cowpea Seed ◽  
Main Effects ◽  
Mechanical Weed Control

The herbicides paraquat, trifluralin, and metolachlor were compared for efficacy of weed control in cowpea [Vigna unguiculata (L.) Walp.] with and without cultivation as a supplemental strategy. Herbicides also were compared against a no cultivation-no herbicide treatment (control) and against cultivation without an herbicide. Cultivation had no significant effect on seed yield, biological yield, or harvest index of cowpea. Paraquat, applied before seeding but after emergence of weeds, was ineffective for weed control and usually did not change cowpea yield from that obtained without an herbicide. Trifluralin and metolachlor more than tripled cowpea seed yield compared with that obtained without an herbicide in 1988, when potential weed pressure was 886 g·m-2 (dry weight). The main effects of trifluralin and metolachlor were not significant for cowpea seed yield in 1989, when potential weed pressure was 319 g·m-2 (dry weight). However, in 1989, these two herbicides still increased cowpea seed yield compared with that of the control and increased net farm income by more than $300/ha compared with the income obtained from the control. Chemical names used 1,1'-dimethyl-4,4' -bipyridlnium salts (paraquat); 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl) benzenamine (trifluralin); 2-chloro-N-(2-ethyl-6 -methylphenyl)-N-(2-methoxy-l-methylethyl) acetamide (metolachlor).

scholarly journals Sensor-based mechanical weed control: Present state and prospects

2020 ◽  
Vol 176 ◽  
pp. 105638 ◽  
Author(s):  
Jannis Machleb ◽  
Gerassimos G. Peteinatos ◽  
Benjamin L. Kollenda ◽  
Dionisio Andújar ◽  
Roland Gerhards
Keyword(s):  
Weed Control ◽  
Present State ◽  
Mechanical Weed Control

Increased seeding rate and multiple methods of mechanical weed control reduce weed biomass in a poorly competitive organic crop

2020 ◽  
Vol 245 ◽  
pp. 107648 ◽  
Author(s):  
Oleksandr S. Alba ◽  
Lena D. Syrovy ◽  
Hema S.N. Duddu ◽  
Steven J. Shirtliffe
Keyword(s):  
Weed Control ◽  
Seeding Rate ◽  
Multiple Methods ◽  
Weed Biomass ◽  
Mechanical Weed Control

Experiments on mechanical weed control in saffron crops in Spain

2014 ◽  
Vol 121 (5) ◽  
pp. 223-228 ◽  
Author(s):  
Alicia Cirujeda ◽  
Ana Isabel Marí ◽  
Joaquín Aibar ◽  
Sonsoles Fenández-Cavada ◽  
Gabriel Pardo ◽  
...  
Keyword(s):  
Weed Control ◽  
Mechanical Weed Control

Field Pea and Lentil Tolerance to Interrow Cultivation

2017 ◽  
Vol 32 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Katherine A. Stanley ◽  
Steven J. Shirtliffe ◽  
Dilshan Benaragama ◽  
Lena D. Syrovy ◽  
Hema S. N. Duddu
Keyword(s):  
Weed Control ◽  
Field Experiments ◽  
Yield Loss ◽  
Growing Season ◽  
Field Pea ◽  
Crop Damage ◽  
Growth Stages ◽  
Row Crops ◽  
Narrow Row ◽  
Mechanical Weed Control

AbstractInterrow cultivation is a selective, in-crop mechanical weed control tool that has the potential to control weeds later in the growing season with less crop damage compared with other in-crop mechanical weed control tools. To our knowledge, no previous research has been conducted on the tolerance of narrow-row crops to interrow cultivation. The objective of this experiment was to determine the tolerance of field pea and lentil to interrow cultivation. Replicated field experiments were conducted in Saskatchewan, Canada, in 2014 and 2015. Weekly cultivation treatments began at the 4-node stage of each crop, continuing for 6 wk. Field pea and lentil yield linearly declined with later crop stages of cultivation. Cultivating multiple times throughout the growing season reduced yield by 15% to 30% in both crops. Minimal yield loss occurred when interrow cultivation was conducted once at early growth stages of field pea and lentil; however, yield loss increased with delayed and more frequent cultivation events.

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