Effect of herbicides on weed control efficiency (WCE) and yield attributes in brinjal (Solanum melongena L.)

A field experiment was conducted during Kharif seasons of 2014 and 2015 at Udaipur (Rajasthan) to find out the effect of weed management on productivity of clusterbean under varying fertility levels. The results revealed that among various weed management practices, two hand weeding 20 and 40 DAS recorded significantly lower weed dry matter, higher weed control efficiency, higher values of yield attributes, seed, haulm and biological yield during both the years over rest of the treatments except sequential application of pendimethalin fb imazethapyr which was statistically at par. Further, application of Imazethapyr fb hand weeding and pendimethalin fb hand weeding also gave comaparable results with pendimethalin fb imazethapyr in terms of weed control efficiency and yields. Among the fertility levels application 20 Kg N + 40 Kg P2O5 ha-1 significantly increased pods plant-1 (24.04), seeds pod-1, (7.12), test weight ( 25.33 g), seed ( 1035 kg ha-1), haulm (2161 kg ha-1) and biological (3196 kg ha-1 ) yield and harvest index ( 31.98 %) of clusterbean over 10 Kg N + 20 Kg P2O5 ha-1 however, it was found statistically at par with fertility level 30 Kg N + 60 Kg P2O5 ha-1. Therefore, clusterbean should be fertilized with 20 Kg N + 40 Kg P2O5 ha-1 and weeds must be controlled with pendimethalin (PE) fb imazethapyr 0.1 kg ha-1 20 DAS .

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Influence of integrated weed management on growth and yield of Kharif maize (Zea mays L.)

INTERNATIONAL JOURNAL OF AGRICULTURAL SCIENCES ◽

10.15740/has/ijas/17-aaebssd/292-296 ◽

2021 ◽

Vol 17 (AAEBSSD) ◽

pp. 292-296

Author(s):

A. S. Bade ◽

J. B. Patil ◽

R. H. Shinde ◽

I. Sarwar ◽

V. R. Bavdekar

Keyword(s):

Zea Mays ◽

Weed Control ◽

Weed Management ◽

Zea Mays L ◽

Growth And Yield ◽

Integrated Weed Management ◽

Yield Attributes ◽

Control Efficiency ◽

Weed Control Efficiency ◽

Hand Weeding

A field experiment entitled, “Integrated weed management in Kharif maize (Zea mays L.)” was conducted during Kharif, 2020 at Post Graduate Research Farm, RCSM College of Agriculture, Kolhapur. The experiment was laid out in Randomized Block Design (RBD) having three replications and twelve treatments. The soil of the experimental plot was medium black clay (vertisol) with 90 cm depth, low in available N (250 kg ha-1), high in available P2O5 (30.60 kg ha-1) and medium in available K2O (290.67 kg ha- 1). The status of organic carbon content (0.34%) was low. The electrical conductivity and pH values were 4.2 dSm-1 and 7.10, respectively.Weed free check and tank mixure application of Tembotrinone 42 SC @ 120gm a.i.ha-1 + Atrazine 50 WP @ 500 gm a.i.ha-1 + surfactant @ 2ml/l of water EPoE At 20-25 DAS + fb hand weeding at 40 DAS were on par with each other and recorded significantly the higher growth and yield contributing characters viz., plant height (cm), number of functional leaves plant-1, leaf area plant-1(dm2), dry matter plant-1(g), length of cob (cm), diameter of cob(cm), number of grains, weight of grains cob-1and test weight resulting into significant increase in grain and straw yields of maize as compared to remaining weed management treatments. Tank mixure application of Tembotrinone 42 SC @ 120gm a.i.ha-1 + Atrazine 50 WP @ 500 gm a.i.ha-1 + surfactant @ 2ml/l of water EPoE At 20-25 DAS + fb hand weeding at 40 DAS recorded minimum dry weight of weed, highest weed control efficiency (86.94 %) and lowest weed index (1.79%).Significantly lowest values for growth, yield and yield attributes as well as weed control efficiency was observed in weedy check treatment.

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Topramezone: A selective post-emergence herbicide in chickpea for higher weed control efficiency and crop productivity

Crop Protection ◽

10.1016/j.cropro.2021.105814 ◽

2021 ◽

Vol 150 ◽

pp. 105814

Author(s):

C.P. Nath ◽

Narendra Kumar ◽

K.K. Hazra ◽

C.S. Praharaj ◽

S.S. Singh ◽

...

Keyword(s):

Weed Control ◽

Crop Productivity ◽

Control Efficiency ◽

Weed Control Efficiency

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Optimizing the Application Time of Pre-emergence Herbicide Pendimethalin and Oxyfluorfen Application for Effective Weed Management in Irrigated Blackgram (Vigna mungo L.) and Its Residue Persistence

Legume Research - An International Journal ◽

10.18805/lr-4478 ◽

2021 ◽

Author(s):

S. Selvakumar ◽

R. Ajaykumar ◽

A. Ammaiyappan

Keyword(s):

Field Experiment ◽

Weed Control ◽

Weed Management ◽

Block Design ◽

Vigna Mungo ◽

Application Time ◽

Herbicide Application ◽

Control Efficiency ◽

Randomized Block Design ◽

Weed Control Efficiency

Background: Time of pre-emergence herbicide application is an important factor that decides the efficiency of herbicide. If the pre-emergence herbicide is not applied at appropriate time, it may cause ineffective weed control or toxicity to crops. With this background, a field experiment was conducted at TNAU, Madurai to optimize the time of pre-emergence herbicides namely pendimethalin and oxyfluorfen application for effective weed management in irrigated blackgram. Methods: The experiment was laid out in randomized block design with three replication. Treatments were application of pendimethalin at 0.75 kg ha-1 and oxyfluorfen at 0.2 kg ha-1 on 1, 2, 3, 4 days after sowing, weed free check and unweeded check. Result: Results of the study revealed that oxyfluorfen gave maximum weed control efficiency as compared to pendimethalin, but toxicity to the crop was observed when oxyfluorfen was sprayed after 2 days of sowing. Yield and economics were achieved higher with application of 0.75 kg ha-1 of pendimethalin at 2 DAS, which was on par with application of 0.2 kg ha-1 of oxyfluorfen at 1 DAS due to lesser toxicity. Application of 0.75 kg ha-1 of pendimethalin and 0.2 kg ha-1 of oxyfluorfen didn’t leave any herbicide residue after harvest. Hence, application of 0.75 kg ha-1 of pendimethalin at 2 DAS and 0.2 kg ha-1 of oxyfluorfen at 1 DAS can be recommended for effective weed management in irrigated balckgram.

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Herbicide selectivity on macauba seedlings and weed control efficiency

Industrial Crops and Products ◽

10.1016/j.indcrop.2020.112725 ◽

2020 ◽

Vol 154 ◽

pp. 112725

Author(s):

Yanna Karoline Santos da Costa ◽

Francisco Cláudio Lopes de Freitas ◽

Hellen Martins da Silveira ◽

Roxana Stefane Mendes Nascimento ◽

Carlos Sigueyuki Sediyama ◽

...

Keyword(s):

Weed Control ◽

Control Efficiency ◽

Weed Control Efficiency

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Weed dynamics and weed control efficiency under different weed management practices for increased productivity of mustard

Indian Journal of Weed Science ◽

10.5958/0974-8164.2016.00119.2 ◽

2016 ◽

Vol 48 (4) ◽

pp. 458

Author(s):

Sumitra Devi Bamboriya ◽

M.K. Kaushik ◽

Shanti Devi Bamboriya ◽

R.C. Tiwari

Keyword(s):

Weed Control ◽

Weed Management ◽

Management Practices ◽

Control Efficiency ◽

Weed Control Efficiency ◽

Weed Dynamics

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Integration of Chemical and Cultural Methods for Weed Control Management in Soybean (Glycin Max. L)

Legume Research - An International Journal ◽

10.18805/lr-3944 ◽

2019 ◽

Author(s):

R L Rajput ◽

Brajraj Singh Kasana

Keyword(s):

Weed Control ◽

Seed Yield ◽

Growth Yield ◽

Yield Attributes ◽

Pooled Data ◽

Cultural Methods ◽

Weed Control Efficiency ◽

Hand Weeding ◽

College Farm ◽

Control Management

A field experiment was conducted during kharif season 2012 and 2013 at Rajmata Vijayaraje Scindia Krishi Vishwa Vidhyalaya RVSKVV, College Farm Gwalior (M.P.) to asses the suiTable method for weed control in soybean. On the basis of two years pooled data results weeding twice at 20 and 40 DAS significantly highest growth, yield attributes and seed yield as compared to the un-weeded control and was at par with pendimethalin (750 g a.i./ha) + one hand weeding, trifluralin (1000 g a.i./ha) + one hand weeding at 20 DAS and imezathapyr(100 g a.i./ha) + one hand weeding at 40 DAS. These treatments also recorded lower weed dry biomassand higher weed control efficiency. Pendimethalin (750 g a.i./ha) + one hand weeding at 20 DAS resulted higher net return (` 63500) and B:C (2.58) ratio followed by trifluralin + one hand weeding and hand weeding twice at 20 and 40 DAS. In addition to hand weeding twice, pre emergence herbicide Pendimethalin (750g a,i/ha) + one hand weeding at 20 DAS can be effectively used as an alternative for controlling weeds for obtaining optimum seed yield in soybean.

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