Development of Efficient Weed Management Practices for Drilled Paddy Production under Gujarat condition

2019 ◽  
Vol 6 (02) ◽  
Author(s):  
R, V Hajari ◽  
R G MACHHAR ◽  
A. K. Mahida ◽  
G D HADIYA ◽  
A K MAHIDA
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Growth And Yield ◽  
Research Station ◽  
Yield Attributes ◽  
Straw Yield ◽  
Randomized Block Design ◽  
Hand Weeding

To study the weed management in drilled paddy an experiment was conducted at Agriculture Research Station, Anand Agricultural University, Derol Dist: panchmahal, Gujarat during kharif seasons of the years 2012-13, 2013-14 ,2014-15 and 2015 -16 . Ten treatments for weed management were studied in randomized block design with four replications. Results that all the growth and yield attributes except plant height and test weight were significantly influenced due to different weed control treatments. The grain and straw yield of drilled paddy were also altered significant due to weed control treatments. In general, T2 (two hand weeding at 20 and 40 DAS) recorded the highest yield among all. It was, however, at par with three other treatments which included pre and post emergence application of herbicides. Since, the application of Oxadiargyl @ 90 g/ha f/b Bisbyribac sodium @ 25 g/ha at 20 DAS is one among the dual application of herbicide, it can be recommended for drilled paddy in options of two hand weeding.

scholarly journals Efficacy of Herbicides for Weed Control in Cauliflower (Brassica oleracea var. botrytis L.)

2021 ◽  
pp. 199-204
Author(s):  
K. Choube ◽  
D. K. Raidas ◽  
M. L. Jadav ◽  
N. S. Kirar
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Growth And Yield ◽  
Plastic Mulch ◽  
Net Return ◽  
Randomized Block Design ◽  
Black Plastic ◽  
Hand Weeding

A field experiment was conducted during Rabi, 2018-19 at Horticulture farm, RAK College of Agriculture, Sehore (M.P.) to study the effect of different weed management practices on growth and yield of cauliflower. The treatments namely - T1- Weedy check (control), T2- Weed free (through hand weeding) at 30 & 60 DAT, T3 -Pendimethalin 30% EC (PE) + one hand weeding at 30 DAT, T4 Oxyfluorfen 23.5% EC (PE) + one hand weeding at 30 DAT, T5 - Propaquizafop 10% EC (POE) + one hand weeding at 60 DAT, T6 -Wheat straw mulch 5kg/plot, T7- Black plastic mulch (150 mm) were evaluated in randomized block design with three replications. Results indicated that the there was no weed under T7 -black plastic mulch (150 mm) at all the stages. The maximum weed control efficiency (98%) was found with the treatment T7 - black plastic mulch (150 mm) at all the stages i.e. at 30, 60 and 90 DAT. The minimum weed index (0.00, 0.00 and 0.00%) was found with the treatment T7 (Black plastic mulch (150 mm) at all the stages. The maximum curd length, curd width, total curd weight (g) and curd yield (q ha-1) was recorded T7- black plastic mulch (150 mm) with the maximum net return (Rs. 75772.58 per ha).While the lowest net return was found under T1 (Weedy check) (Rs. 21405.34 per ha) treatment. The maximum B: C ratio (1:4.0) was recorded in case of treatment T3 [Pendimethalin 30% EC (PE) + 1HW at 30 DAT].

Effect of weed management practices on Sugarcane ratoon

2016 ◽  
Vol 36 (2) ◽  
Author(s):  
Mahima Begum ◽  
Bijnan Chandra Bordoloi
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Cultural Practices ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Cane Yield ◽  
Research Station ◽  
Randomized Block Design ◽  
Loam Soil

A field experiment was conducted during the three consecutive seasons from 2006-08 on clay loam soil of Sugarcane Research Station, Buralikson, Assam to study the effect of different herbicides along with other cultural practices of weed management of sugarcane. The experimental field was laid out in randomized block design with three replication with the following ten treatments viz. T<sub>1</sub>: control, T<sub>2</sub>: 3 hoeings (1<sup>st</sup> , 4<sup>th</sup> and 7<sup>th</sup> week), T<sub>3</sub>: Atrazine@ 2kg a.i/ha + 2,4-D @ 1kg a.i/ ha at 45 days after ratoon initiation, T<sub>4</sub>: atrazine @ 2 kg a.i/ha + 1 hoeing at 45 days after ratoon initiation, T<sub>5</sub>: metribuzine @1 kg a.i/ha + 2,4-D @1 kg a.i/ha at 45 days after ratoon initiation, T<sub>6</sub>: metribuzine @1 kg a.i/ha + 1 hoeing at 45 days after ratoon initiation , T<sub>7</sub>: glycel-41@ 0.4 kg a.i/ha at 3<sup>rd</sup> week stage, T<sub>8</sub>: glycel-41@ 0.4 kg a.i/ha at 3<sup>rd</sup> week + 1 hoeing at 60 days after ratoon initiation, T<sub>9</sub>: trash mulching in alternate rows + hoeing during 1<sup>st</sup> and 6<sup>th</sup> week, T<sub>10</sub>: trash mulching in all rows. Result revealed that all the weed management practices had a significant effect on growth and yield of sugarcane over control. Out of all treatments, pre-emergence spraying of metribuzine @1 kg a.i/ha followed by spraying of 2, 4-D @1 kg a.i/ha at 45 days after ratoon initiation recorded lesser number of weeds and weed dry weight with higher weed control efficiency (80.38%). The same treatment also recorded the higher cane yield (79.6 t/ha) which is followed by pre-emergence spraying of metribuzine @ 1 kg a.i/ha with 1 hoeing at 45 days after ratoon initiation.

scholarly journals Efficacy of chemical and cultural weed management practices on nutrient uptake in black gram (Phaseolus mungo)

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 121-125
Author(s):  
Kavita D. Rajput ◽  
J. P. Bholane ◽  
A.S. Latkar ◽  
V.M. Bhale
Keyword(s):  
Nutrient Uptake ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Cultural Practices ◽  
Block Design ◽  
Control Treatment ◽  
Black Gram ◽  
Randomized Block Design ◽  
Hand Weeding

The results of the field experiment carried out during kharif season of 2010 at agronomy department farm, Dr.P.D.K.V.,Akola revealed that N,P,K uptake by black gram (Phaseolus mungoL.) and weeds were significantly higher under weed free and weedy check treatments among all of the weed control treatments. The experiment was laid out in Randomized Block Design replicated three times with thirteen treatments, in that chemical and cultural treatments were compared with weedy check and weed free control. Herbicide application in general and pre-emergence application of pendimethalin @1.5kg/ha in particular reduced the nutrients removal by weeds and enhanced the nutrient uptake by the crop followed by cultural practices of two hand weeding at 15 & 30 days after sowing. The pre-emergence application of pendimethalin in @ 1.5 kg/ha recorded highest nutrient uptake in grain (34.92, 6.50, 34.16 NPK kg/ha resp.) and strover (63.26, 10.60, 57.60 NPK kg/ha resp.) among all the weed control treatment except weed free treatment. The crude protein content of grain was the highest with pre-emergence application of pendimethalin @ 1.5 kg/ha (21.65) followed by pendimethalin @ 1.0 kg/ha (21.55).

scholarly journals Impact of Weed Management Practices on Yield Attributes, Economics and Phytotoxicity of Kharif Maize

2021 ◽  
pp. 42-49
Author(s):  
Y. Lavanya ◽  
K. Srinivasan ◽  
C. R. Chinnamuthu ◽  
P. Murali Arthanari
Keyword(s):  
Weed Management ◽  
Tamil Nadu ◽  
Management Practices ◽  
Block Design ◽  
Maize Crop ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Hand Weeding ◽  
And Control ◽  
The Impact

A field experiment was conducted during 2018 and 2019 at Tamil Nadu Agricultural University, Agriculture College and Research Institute, Coimbatore to study the impact of weed management practices on yield attributes, economics and phytotoxicity of kharif maize. Ten treatments were tested in randomized block design with three replications viz., pre emergence (PE) atrazine at 0.5 kg a.i. ha-1 fb hand weeding (HW) at 20 DAS, PE atrazine at 0.5 kg a.i. ha-1 fb power weeder (PW) at 20 DAS, PE atrazine at 0.5 kg a.i. ha-1 + pendimethalin at 1 kg a.i. ha-1 (Tank mix), PE atrazine at 0.5 kg a.i. ha-1 + pendimethalin at 1 kg a.i. ha-1 fb HW at 20 DAS, early post emergence (EPoE) topramezone at 25.2 g a.i. ha-1, PE atrazine at 0.5 kg a.i. ha-1 fb EPoE topramezone at 25.2 g a.i. ha-1, EPoE tembotrione at 122 g a.i. ha-1, PE atrazine 0.5 kg a.i. ha-1 fb EPoE tembotrione 122 g a.i. ha-1, hand weeding twice at 20 and 45 DAS and control (weedy check). Among the different weed management practices significantly higher yield attributes viz., cob length, cob girth, weight of cob, No. of grain rows cob-1, No. of grains cob-1, grain yield cob-1 was found with hand weeding twice at 20 and 45 DAS and it was at par with atrazine at 0.5 kg a.i. ha-1 as PE  fb topramezone at 25.2 g a.i. ha-1 as EPoE and atrazine at 0.5 kg a.i. ha-1 as PE + tembotrione at 122 g a.i. ha-1 as EPoE. Maximum net return and B:C ratio were recorded under atrazine at 0.5 kg a.i. ha-1 as PE fb topramezone at 25.2 g a.i. ha-1 as EPoE followed by atrazine at 0.5 kg a.i. ha-1 as PE + tembotrione at 122 g a.i. ha-1 as EPoE. However, among the different herbicidal treatments used, all the herbicidal treatments were found to be safe to the maize crop without any caused phototoxic effect on maize during both the years of experimentation. Now-a-days, increased labour scarcity and costs are encouraging farmers to adopt labour and cost- saving options by using chemical method.

Effect of weed management practices on the yield attributes and yield of wet-seeded rice

2003 ◽  
Vol 51 (4) ◽  
pp. 461-464
Author(s):  
◽  
B. J. Pandian ◽  
P. Thukkaiyannan ◽  
N. Thavaprakash
Keyword(s):  
Weed Management ◽  
Tamil Nadu ◽  
Management Practices ◽  
Field Experiments ◽  
Block Design ◽  
Maximum Yield ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Agricultural College ◽  
Hand Weeding

Field experiments were conducted at the Agricultural College and Research Institute, Tamil Nadu Agricultural University, Killikulam, India during the kharif (July to November) and summer (December to April) seasons of 1999 and 2000 in a randomized block design. The treatment consisted of three pre-emergence herbicides (pretilachlor + safener 0.3 kg ha-1 4 days after sowing [DAS], butachlor 1.0 kg ha-1 8 DAS and pendimethalin 1.0 kg ha-1 8 DAS) and one early post-emergence herbicide (butanil 3.0 ha-1 15 DAS), each in combination with mechanical or hand weeding 30 and 45 DAS. In addition, green manure (Daincha) intercropping and incorporation, mechanical and hand weeding twice alone (25 and 50 DAS) were compared with the unweeded check. The results revealed that the pre-emergence application of pretilachlor + safener 0.3 kg ha-1 + hand weeding twice (30 and 45 DAS) promoted higher yield attributes and maximum yield in wet-seeded rice.

scholarly journals Effect of integrated weed management practices on performance of dry direct seeded rice (Oryza sativa L.)

2013 ◽  
Vol 3 ◽  
pp. 53-63 ◽  
Author(s):  
KP Bhurer ◽  
DN Yadav ◽  
JK Ladha ◽  
RB Thapa ◽  
K Pandey
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Growth And Yield ◽  
Integrated Weed Management ◽  
Research Station ◽  
Yield Attributes ◽  
Net Return ◽  
Free Treatment ◽  
Direct Seeded ◽  
Hand Weeding

Weeds are serious problem in dry direct seeded rice (DDSR). A field experiment was conducted during rainy seasons of 2010 and 2011 at research farm of the Regional Agricultural Research Station (RARS) Parwanipur, to study the effect of integrated weed management practices on the performance of dry direct seeded rice. Ten treatment combinations viz; weedy, weed free (weekly), Pendimethalin fb (followed by) Bispyribac, Pendimethalin fb two hand weeding, Stale seedbed fb Bispyribac, Stale seedbed fb Pendimethalin fb Bispyribac, Mulch 4 t/ha fb Bispyribac fb one hand weeding, Stale seedbed fb mulch 4 t/ha fb Bispyribac, Pendimethalin and Sesbania co-culture fb 2,4-D Na salt fb one hand weeding and Pendimethalin fb 2,4-D fb one hand weeding were tested in a randomized complete block design and replicated thrice. Observations were taken on weed, plant growth and yield attributes, yield, and socio-economic parameters. All weed control treatments significantly reduced the weed density and dry weight of weed resulting significant increase in yield of DSR over weedy check in both years. Weed free treatment resulted the highest yield, however, it was not economical due to high cost of cultivation. The use of Pendimethalin fb 2,4-D fb one hand weeding produced yield (5161 in 2010 and 6160 kg/ha in 2011) which were statistically at par with yield (5305 in 2010 and 6319 kg/ha in 2011) obtained under the weed free treatment. Further, the highest benefit cost ratio (CBR) 1.77 and 2.22 and net return Rs 47700 and 75084/ha during 2010 and 2011, respectively, were obtained under this treatment indicating its superiority over other treatments. The grain yield, yield attributing characters viz. panicles per m2, panicle weight, filled grain per panicle, thousand grain weight as influenced by different weed management practices revealed that higher yield resulted from weed free plot followed by Pendimethalin followed by two hand weeding and Pendimethalin followed by 2,4-D followed by one hand weeding. However, the net return per unit investment resulted highest in Pendimethalin followed by 2,4-D followed by one hand weeding. This proved that amid increasing wage rate and labor scarcity integrated weed management through Pendimethalin 30 EC (stomp) @ 1 kg a. i./ha as pre- emergence herbicide application followed by 2,4-D sodium salt 80 WP @ 0.5 kg a.i./ha followed by one hand weeding or stale seed bed followed by Pendimethalin 30 EC (stomp) @ 1 kg a. i./ha followed by Bispyribac (nominee gold) @ 25 g a. i./ha 10 % @ 200 ml/ha at 20 days of seeding resulted best alternative for manual hand weeding practices giving higher net return per unit investment. Agronomy Journal of Nepal (Agron JN) Vol. 3. 2013, Page 53-63 DOI: http://dx.doi.org/10.3126/ajn.v3i0.9006

scholarly journals Integration of chemical and manual control methods for sustainable weed management in inbred and hybrid rice

2017 ◽  
Vol 15 (2) ◽  
pp. 158-166
Author(s):  
Fahima Sultana Popy ◽  
AKM Mominul Islam ◽  
Ahmed Khairul Hasan ◽  
Md Parvez Anwar
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Hybrid Rice ◽  
Block Design ◽  
Yield Attributes ◽  
Free Treatment ◽  
Randomized Complete Block Design ◽  
Hand Weeding

Herbicidal weed control is gaining popularity in the developing countries but its efficacy still remains unclear. Therefore, an experiment was conducted to find out appropriate weed management practices for inbred and hybrid rice. The experiment comprised of inbred and hybrid varieties (two of each), and eight weed control treatments arranged in randomized complete block design with three replicates. Hybrid varieties performed better in terms of yield attributes and yield than inbred varieties. The highest grain yield (5.3 t ha−1) was obtained from the hybrid Agrodhan-12 and the lowest one (4.3 t ha−1) was from inbred Binadhan-7. Weed free treatment resulted in the highest grain yield (6.1 t ha−1) and the lowest one was with weedy treatment (1.96 t ha−1). The highest grain yield was obtained from Agrodhan-12 in weed free condition (6.9 t ha-1), while the lowest value was in inbred BRRI dhan49 under weedy condition (1.73 t ha−1). Weed-free treatment and the treatments of Pretilachlor fb Penoxsolum, Pretilachlor fb hand weeding, and Pendimethalin fb hand weeding showed similar performances in reducing weed density and eventually resulted in similar and the highest grain yield. Based on these results it may conclude that Pretilachlor applied at 2 days after transplanting (DAT) fb Penoxsolum at 21 DAT is the best weed management option. But from sustainability viewpoint, Pretilachlor or Pendimethalin applied at 2 DAT along with one hand weeding at 35 DAT may be recommended for effective weed management in inbred and hybrid rice during monsoon season.J. Bangladesh Agril. Univ. 15(2): 158-166, December 2017

scholarly journals Bio-efficacy of tank mixed herbicides for control of complex weed flora in soybean (Glycine max L. Merril)

2016 ◽  
Vol 8 (4) ◽  
pp. 2231-2234
Author(s):  
Mahender Singh ◽  
I. S. Tomar ◽  
J. Morya ◽  
Arjun K. Verma ◽  
R. K. Tripati
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Dry Matter ◽  
Management Practices ◽  
Block Design ◽  
Maximum Yield ◽  
Cost Ratio ◽  
Randomized Block Design ◽  
Chlorimuron Ethyl ◽  
Hand Weeding

A field experiment was conducted at ZARS, Jhabua (M.P.) during kharif 2014 to find out most suitable and efficient method of weed control in soybean. The experiment consisted of nine treatments laid out in randomized block design with three replications. All the weed management practices led to significant reduction in density and dry matter of weeds as compared to weedy check. Two hand weeding (20 & 40 DAS) recorded lowest weed density (4.9/ m2), weed dry matter (22.35 g/m2) with highest weed control efficiency of 59.67% and found at par with the application of Chlorimuron Ethyl @ 9gm /ha + Quizalofop-p-ethyl @ 50 g /ha (density 5.48/ m2, dry matter 26.62 g/m2 and WCE of 51.97%) and Imazethapyr @ 35 g /ha + Imazamox @ 35 g/ha (density 6.13/ m2, dry matter 26.00 g/m2 and WCE of 53.08%). Maximum yield of 1782 kg/ha was recorded in two hand weeding (20 & 40 DAS) closely followed by Chlorimuron Ethyl @ 9gm /ha + Quizalofop-p-ethyl @ 50 g /ha (1723 kg/ha) and Imazethapyr @ 35 g / ha + Imazamox @ 35 g/ha (1697 kg/ha). Reduction in soybean yield in weedy check to be recorded is 38.78 per cent when compared to weed free and 36.68 per cent in comparison to Chlorimuron Ethyl @ 9gm /ha + Quizalofopp-ethyl @ 50 g /ha. However, highest Benefit to Cost ratio is recorded in Chlorimuron Ethyl +Quizalofop-p-ethyl (3.26) closely followed by Imazethapyr + Imazamox (3.22) and Weed free (3.21).

scholarly journals Effect of Weed Management Practices on Weed Dynamics, Yield Attributes and Yield of Maize

2020 ◽  
Vol 11 (5) ◽  
pp. 488-493
Author(s):  
Suman Kantwa ◽  
◽  
C. K. Jadon ◽  
J. P. Tetarwal ◽  
Baldev Ram ◽  
...  
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Agricultural Research ◽  
Cyperus Rotundus ◽  
Research Station ◽  
Yield Attributes ◽  
Stover Yield ◽  
Weed Dynamics ◽  
Hand Weeding

A field experiment was conducted at Research Farm of Agricultural Research Station, Ummedganj, Kota (Agriculture University, Kota), Rajasthan, India during kharif 2019 to find out the most effective herbicide combination for limiting the menace of weeds in maize. Results showed that density of monocot weeds were observed more than dicot weeds during the experimentation. The prominent weeds were Echinochloa colona, Cyperus rotundus, Digera arvensis, Amaranthus viridis, Acalypha indica and Trianthema portulacastrum etc. caused about 58.3% reduction in grain yield as over two hand weeding at 20 and 40 DAS. In general, grassy weeds were better controlled by herbicides than broad leaves weeds. Among herbicides, maximum weed control efficiency (72.18%) was achieved with application of atrazine 500 g a.i. ha-1 (PE) followed by topramezone 25.2 g a.i. ha-1 at 20-25 DAS (72.18%) which is very close to two hand weeding at 20 and 40 DAS. Furthermore, this treatment also produced higher grain (3496 kg ha-1) and stover yield (6460 kg ha-1) which was at par with atrazine 500 g a.i. ha-1 (PE) followed by tembotrione 120.75 g a.i. ha-1 (20-25 DAS) and atrazine 500 g a.i. ha-1 (PE)+hand weeding 30 DAS with in-situ weeds mulching. Thus, pre-emergence application of atrazine 500 g a.i. ha-1 (PE) followed by topramezone 25.2 g a.i. ha-1 at 20-25 DAS is recommended for better weed control and yield of maize.

Residual Effect of Weed Management Practices Executed in Preceding Maize on Succeeding Greengram

2021 ◽  
Author(s):  
B. Sandhya Rani ◽  
V. Chandrika ◽  
G. Prabhakara Reddy ◽  
P. Sudhakar ◽  
K.V. Nagamadhuri ◽  
...  
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Residual Effect ◽  
Cropping System ◽  
Dry Weight ◽  
Microbial Count ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Weed Infestation

Background: Maize followed by summer pulses is the emerging cropping system in many places in India. Herbicides are the efficient tools for checking weed infestation and their usage is increasing throughout the globe due to increased labour cost and quick weed control. Some herbicides do not degrade quickly and may remain in the soil for weeks, months or years after application and may inhibit the growth of succeeding crops. Methods: Field experiment was conducted in a randomized block design (RBD) during rabi and summer seasons of 2017-18 and 2018-19 to know the residual effect of different herbicides applied in maize on succeeding greengram. Result: The present study revealed that lower density and dry weight of total weeds and higher yield attributes and yield was recorded with the practice of adopting two hand weedings at 15 and 30 DAS, which was however, at par with atrazine 1.0 kg ha-1 as PE fb one HW at 30 DAS, atrazine 1.0 kg ha-1 as PE fb topramezone 30 g ha-1 as PoE and atrazine 1.0 kg ha-1 as PE fb tembotrione 120 g ha-1 as PoE, without any significant disparity among them. Herbicides applied in maize did not alter statistically the enzyme activity and microbial count in the soil at harvest of succeeding greeengram. 

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