Growth and Yield of Summer Sesamum (Sesamum indicum L.), Dry Weight of Weeds and Weed Control Efficiency Influence by Different Row Spacing and Weed Management under South Gujarat Condition

ABSTRACT. The responds of weed and soybean by gluphosate dosage and time application research was conducted Experimental Farm, Syiah Kuala University since June to September 1999. The research was designed according to Completely Randomize Design. The aimed of the research is to know weed and soybean respons by glyphosate dosage and time application. The result shown that the glyphosate dosage had significant effect on weed control efficiency but hat no effect to soybean growth and yield. For the time of glyphosate application show that significant effect to number of grain, grain dry weight, but hat no significant effect to weed control efficiency and number of pod.

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Effect of nitrogen and weed management on weed control efficiency and yield of fodder turnip

Agricultural Science Digest - A Research Journal ◽

10.18805/asd.v35i4.6871 ◽

2015 ◽

Vol 35 (4) ◽

Author(s):

Govind Kumar ◽

Magan Singh ◽

Rakesh Kumar ◽

Koushik Paul ◽

Pooja Gupta Soni ◽

...

Keyword(s):

Weed Control ◽

Weed Management ◽

Management Practices ◽

Growth Yield ◽

Growth And Yield ◽

Control Efficiency ◽

Weed Control Efficiency ◽

Four Levels ◽

Hand Weeding ◽

Nitrogen Treatments

A field experiment was conducted at Forage Research and Management Centre, NDRI, Karnal during <italic>rabi</italic> season in 2013-14 to study the effect of nitrogen application and weed management on growth and yield of fodder turnip (<italic>Brassica compestris</italic> var. rapa) with four levels of nitrogen (0, 50, 100, and 150 kg N/ha) and four weed management practices (pendimethalin @ 1.0 kg a.i./ha, hand weeding, isoproturon @ 0.75 kg a.i./ha and weedy check) in split plot design. Among the nitrogen treatments 150 kg nitrogen/ha gave the highest growth, yield and better quality of fodder turnip. Application of pendimethalin @1.0 kg a.i. proved better in terms of growth and yield of turnip. Weed control efficiency was 65% with 150 kg N/ha and 83.23% with pendimethalin 1.0 kg a.i./ha.

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Effect of planting methods and weed management practices on yield of green gram {Vigna radiata (L.) R. Wilczek}, weed dynamics vis a vis phytotoxicity in green gram

Indian Journal of Agricultural Research ◽

10.18805/a-4976 ◽

2019 ◽

Author(s):

Rekha Yadav ◽

Satish Kumar ◽

Anil Kumar Dhaka ◽

Neeraj Kumar

Keyword(s):

Weed Control ◽

Weed Management ◽

Dry Weight ◽

Green Gram ◽

Control Efficiency ◽

Planting Methods ◽

Weed Control Efficiency ◽

Raised Bed ◽

Planting Method ◽

Number Of Seeds

An experiment was carried out to find out suitable method of planting and weed management in green gram grown during the kharif season of 2014 and 2015. The density of E. colona and C. rotundus was significantly reduced in raised bed planting method. Significant reduction in total dry weight of weeds was obtained in raised bed planting method as compared to conventional and zero till planting method. Maximum weed control efficiency was found in raised bed planting method. Significantly more number of seeds pod-1 were observed in raised bed planting method as compared to conventional and zero till planting method. Seed yield and straw yield were found maximum in raised bed planting method during both years of study and were statistically at par in conventional and zero till planting method. Harvest index was not influenced by planting methods. Phytotoxicity on crop due to different herbicides was similar under different planting methods. Among different weed management treatments, HW at 15 and 30 DAS was found most effective in reducing density and dry weight of weeds during crop growing period except at 15 DAS (where weeding was done after taking observation). Maximum weed control efficiency was observed in HW (15 and 30 DAS). Weedy check treatment resulted in minimum while weed free treatment resulted in maximum number of seeds pod-1. Among the treatments having herbicide application, post emergence application of Imazethapyr @ 100 g ha-1 resulted in maximum seed and stover yield.

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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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Effect of Maize (Zea mays L.) and Legume Intercropping Systems on Weed Dynamics

International Journal of Bio-resource and Stress Management ◽

10.23910/1.2021.2427 ◽

2021 ◽

Vol 12 (5) ◽

pp. 463-467

Author(s):

Chongtham Roben Singh ◽

◽

L. Tongpang Longkumer ◽

Keyword(s):

Weed Control ◽

Weed Management ◽

Field Experiments ◽

Dry Weight ◽

Black Gram ◽

Fresh Weight ◽

Weed Population ◽

Control Efficiency ◽

Weed Control Efficiency ◽

Equivalent Yield

The field experiments were conducted during two consecutive seasons of kharif (June to October), 2016 and 2017 at the Experimental Research Farm, ICAR Research Complex for NEH Region, Nagaland Centre, Medziphema, Nagaland, India. The treatments consisted of four planting geometries i.e. maize+black gram (1:1), maize+black gram (2:2), maize+soybean (1:1) and maize+soybean (2:2) and three weed management practices i.e. weedy check, pre-emergence application of pendimethalin @ 1.0 kg a.i. ha-1+one hand weeding (1HW) at 30 DAS and two hand weedings (2HW) at 20 and 40 DAS. The experiment was laid out in Randomized Block Design with two factors comprising twelve treatment combinations and replicated three times. The results revealed that among the planting geometry, maize+soybean (2:2) recorded the highest weed control efficiency (WCE) and reduced the weed population, fresh weight and dry weight of monocot and dicot weed at 60 DAS and gave the maximum maize equivalent yield (4374.96 kg ha-1). Among the weed management, 2HW at 20 and 40 DAS recorded the lowest weed population, fresh weight, dry weight and the highest weed control efficiency (WCE) of monocot and dicot weed at 60 DAS and the maximum maize equivalent yield as 4591.10 kg ha-1 which was at par with the pre-emergence application of pendimethalin @ 1.0 kg a.i. ha-1+1HW at 30 DAS as 4461.80 kg ha-1. The highest net return (` ha-1), return per rupee invested and B: C ratio were recorded from the pre-emergence application of pendimethalin @ 1.0 kg a.i. ha-1+1HW at 30 DAS with ` 36624.05 ha-1 which was closely followed by 2HW at 20 and 40 DAS with Rs. 35428.81 ha-1.

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Effect of Weed Management Practices on Weed Control, Yield and Economics of Soybean [Glycine max (L.) Merrill]

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2020/v39i930620 ◽

2020 ◽

pp. 114-120

Author(s):

R. K. Raj ◽

K. K. Sinha ◽

Shalu Kumari ◽

Anup Kumar Choubey ◽

Ashok Pandit ◽

...

Keyword(s):

Glycine Max ◽

Weed Control ◽

Weed Management ◽

Management Practices ◽

Dry Weight ◽

Cost Ratio ◽

Control Efficiency ◽

Weed Control Efficiency ◽

Glycine Max L ◽

Hand Weeding

The experiment was laid out Tirhut College of Agriculture, farm Dholi, Muzaffarpur, Bihar during kharif season 2016, to study the effect of weed management practices on weed control, yield and economics of soybean [Glycine max (L.)]. Hand weeding twice at 25 and 45 DAS was found most effective to control weeds in soybean and recorded lowest weed count, weed dry matter and highest weed control efficiency. Among herbicide, application of Pendimethalin 1.0 kg/ha as PE (Pre-emergance) and Imazethapyr 55 g/ha as PoE (Post-emergance) at 25 DAS was found to be more efficient and cost effective to reduce weed population/m2 (53.94 & 67.22), dry weight of weeds/m2 (21.16 & 45.86 g) an increased weed control efficiency (53.86 & 68.83%) significantly in both the stages 30 and 60 DAS. Beside it, Pendimethalin 1.0 kg/ha + Imazethapyr 55 g/ha at 25 DAS, Pendimethalin 1.0 kg/ha + one hand weeding at 40 DAS and hand weeding twice at 25 and 45 DAS were equally efficient in increasing the grain yield, straw yield, weed index and gross returns than control but net returns (39870/ha) and benefit-cost ratio (1.70) was obtained maximum only with Pendmethalin 1.0 kg/ha and Imazethapyr 55 g/ha at 25 DAS.

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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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