Nanotechnology and Its Role in Agronomic Crops

Interaction of dicamba, fluthiacet-methyl, and glyphosate for control of velvetleaf (Abutilon theopharsti) in dicamba/glyphosate-resistant soybean

Weed Technology ◽

10.1017/wet.2021.40 ◽

2021 ◽

pp. 1-21

Author(s):

Jose H. S. de Sanctis ◽

Amit J. Jhala

Keyword(s):

United States ◽

Field Experiments ◽

The United States ◽

Application Rate ◽

Herbicide Application ◽

Soybean Yield ◽

Agronomic Crops ◽

Split Plot ◽

Main Plot ◽

Biomass Reduction

Abstract Velvetleaf is an economically important weed in agronomic crops in Nebraska and the United States. Dicamba applied alone usually does not provide complete velvetleaf control, particularly when velvetleaf is greater than 15 cm tall. The objectives of this experiment were to evaluate the interaction of dicamba, fluthiacet-methyl, and glyphosate applied alone or in a mixture in two- or three-way combinations for velvetleaf control in dicamba/glyphosate-resistant (DGR) soybean and to evaluate whether velvetleaf height (≤ 12 cm or ≤ 20 cm) at the time of herbicide application influences herbicide efficacy, velvetleaf density, biomass, and soybean yield. Field experiments were conducted near Clay Center, Nebraska in 2019 and 2020. The experiment was arranged in a split-plot with velvetleaf height (≤ 12 cm or ≤ 20 cm) as the main plot treatment and herbicides as sub-plot treatment. Fluthiacet provided ≥ 94% velvetleaf control 28 d after treatment (DAT) and ≥ 96% biomass reduction regardless of application rate or velvetleaf height. Velvetleaf control was 31% to 74% at 28 DAT when dicamba or glyphosate was applied alone to velvetleaf ≤ 20 cm tall compared with 47% to 100% control applied to ≤ 12 cm tall plants. Dicamba applied alone to ≤ 20 cm tall velvetleaf provided < 75% control and < 87% biomass reduction 28 DAT compared with ≥ 90% control with dicamba at 560 g ae ha−1 + fluthiacet at 7.2 g ai ha−1 or glyphosate at 1,260 g ae ha−1. Dicmaba at 280 g ae ha−1 + glyphosate at 630 g ae ha−1 applied to ≤ 20 cm tall velvetleaf resulted in 86% control 28 DAT compared with the expected 99% control. The interaction of dicamba + fluthiacet + glyphosate was additive for velvetleaf control and biomass reduction regardless of application rate and velvetleaf height.

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Response of growth and yield of two soybean varieties to seed pre-treatment applications

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/883/1/012052 ◽

2021 ◽

Vol 883 (1) ◽

pp. 012052

Author(s):

N Herawati ◽

A R Aisah ◽

I Mardian ◽

B N Hidayah ◽

B T R Erawati

Keyword(s):

Plant Height ◽

Seed Treatment ◽

Seed Quality ◽

Block Design ◽

Growth And Yield ◽

Agronomic Crops ◽

Randomized Block Design ◽

Two Factors ◽

Pre Treatment ◽

Four Levels

Abstract Plant growth is influenced by seed quality. Seeds need to be treated to prevent pest and disease disorders or to increase seed germination. Soybean planting was carried out in this study by the treatment of varieties and seed pre-treatment application before planting. The study aimed to measure the growth and yield of soybeans by varieties and seed treatment before planting, carried out in the Village of Nggembe, District of Bolo, Bima Regency. The study used factorial randomized block design with two factors. The first factor was soybean varieties consisting of two levels, namely Devon and Dena varieties, and the second factor was the application of pre-planting seed treatments consisting of four levels namely Cruiser, Marshall, Agrisoy, and without seed treatment, each treatment was repeated three times. Observations were made on the performance of agronomic crops and soybean yields. The results showed that the treatment of soybean varieties and the application of seed treatment had a significant influence on plant height and soybean productivity, and both treatments had interactions on parameters of plant height, number of filled pods, weight of 100 seeds, and soybean productivity with the best results successively produced by a combination of Devon-Control, Devon-Marshall, Devon-Agrisoy, and Dena-Cruiser.

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Efficacy of Synthetic Pesticides Against Thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) on Okra Abelmoschus esculentus (L.) Moench

Journal of Agricultural Science ◽

10.5539/jas.v13n9p148 ◽

2021 ◽

Vol 13 (9) ◽

pp. 148

Author(s):

Hira Mannan ◽

Qurban Ali Nahiyoon ◽

Jilian Li

Keyword(s):

Insect Pests ◽

Thrips Tabaci ◽

Abelmoschus Esculentus ◽

Vegetable Crops ◽

Vegetable Crop ◽

Agronomic Crops ◽

Wide Range ◽

Field Efficacy ◽

Synthetic Pesticides ◽

Pre Treatment

Okra (Abelmoschus esculentus L.) is an essential vegetable crop with good nutritional significance. Insect pests are the major threat for poor production of the okra crop. Thrips of vegetable crops are known to be serious pests on a wide range of fruit, vegetable, flower, and agronomic crops. The present field study was carried out to know the efficacy of different insecticides (acetamiprid 19% weightable water (ww), lambda 25% ww, colarphipare 32% ww, lambda 2.5% ww and abamectin 1.3% ww) against Thrips, Thrips tabaci (Lindeman) on okra crop during the year 2019, and observations against T. tabaci (Lindeman) were recorded after 24 hrs, 48 hrs, 72 hrs and 07 days of each spray in all the treatments. The pre-treatment count of thrips on okra was non-significant (P > 0.05); while the evaluated efficacy of different insecticides against thrips was significant (P < 0.01). It was noted that all the insecticides showed their highest efficacy after 7 days of spray and acetamiprid 19% weightable water (ww) was more efficient to combat the T. tabaci as compared to other pesticides that produced field efficacy of 73.92 and 74.91% against thrips after 7 days of 1st and 2nd spray respectively. Abamectin, 1.3% ww, was reasonably successful, yielding 53.81 and 56.66% field efficacy against T. tabaci (Lindeman) after 7 days of first and second spray. Also, moderately effective was colarphipare 32% ww, which developed field effectiveness of 56.41 and 61.49% against T. tabaci (Lindeman) after 7 days of first and second spray, respectively.

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Impact of Foliar Application of Magnesium Fertilizer on Agronomic Crops: A Review

Indian Journal of Pure & Applied Biosciences ◽

10.18782/2582-2845.8465 ◽

2020 ◽

Vol 8 (6) ◽

pp. 281-288

Author(s):

Muhammad Adnan ◽

Keyword(s):

Foliar Application ◽

Agronomic Crops

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Potential new tool for weed control in organically grown agronomic crops

Journal of Agricultural Sciences Belgrade ◽

10.2298/jas0702095k ◽

2007 ◽

Vol 52 (2) ◽

pp. 95-104 ◽

Cited By ~ 5

Author(s):

Stevan Knezevic ◽

Santiago Ulloa

Keyword(s):

Field Experiments ◽

Logistic Models ◽

Amaranthus Retroflexus ◽

Sorghum Halepense ◽

Setaria Viridis ◽

Agronomic Crops ◽

Green Foxtail ◽

Baseline Information ◽

Weed Tolerance ◽

Organically Grown

Field experiments were conducted during summer 2007 to determine a baseline information on crop and weed tolerance to broadcast flaming utilizing different rates of propane. The species evaluated were: maize (Zea mays), sorghum (Sorghum halepense), soybean (Glycine max), sunflower (Helianthus annuus), barnyardgrass (Echinocloa crus-galli), green foxtail (Setaria viridis), velvetleaf (Abutilon theophrasti) and redroot pigweed (Amaranthus retroflexus). The propane rates applied were 0, 12.1, 30.9, 49.7, 68.5 and 87.22 kg/ha. The response of the plants to propane rates were described by log-logistic models. Plant response to flame varied depending on the species, growth stage and propane rate. Broadleaf weeds were more susceptible to flames than grasses. Field maize and sorghum were less susceptible, while soybean and sunflower were severely injured. Of all crops tested, broadcast flaming has the most potential for use in field maize.

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Use of Telone II and Temik 15G to Improve Yields and Returns of Cotton Grown in Northwest Florida Fields Infested with Root-Knot Nematodes

EDIS ◽

10.32473/edis-fe318-2004 ◽

1969 ◽

Vol 2004 (17) ◽

Author(s):

D. J. Zimet ◽

J. L. Smith ◽

R. A. Kinloch ◽

Jimmy R. Rich ◽

Timothy D. Hewitt

Keyword(s):

Crop Rotation ◽

Resource Economics ◽

Cooperative Extension Service ◽

The State ◽

Extension Service ◽

Management Option ◽

Root Knot Nematodes ◽

University Of Florida ◽

Nematode Management ◽

Agronomic Crops

In Florida, nematicides are the most viable nematode management option because many growers only produce monoculture cotton and the low prices of other agronomic crops in the state make crop rotation expensive. The two primary nematicides used and recommended in Florida are Telone II and Temik 15G (Kinloch and Rich, 2000). This is EDIS document FE 318, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL. Published November 2004. https://edis.ifas.ufl.edu/fe318

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