Effect of different weed control methods to yield of lowland transplanted rice in the Jaunpur district of Uttar Pradesh

2016 ◽  
Vol 1 (02) ◽  
pp. 174-178
Author(s):  
Somendra Nath ◽  
Sandeep Kumar ◽  
Suresh Kumar Kannaujiya
Keyword(s):  
Weed Control ◽  
Rice Yield ◽  
Oryza Sativa L ◽  
Block Design ◽  
Uttar Pradesh ◽  
Control Methods ◽  
Transplanted Rice ◽  
Randomized Block Design ◽  
Manual Weeding ◽  
Hand Weeding

An experiment was conducted during kharif season of 2014 at crop cafeteria form of Krishi Vigyan Kendra, Jaunpur to assess the effect of different weed control methods to yield of low land rice (Oryza sativa L.). Weed competition will reduce rice yield. It has been conducted from 15 June 2014 until October 2014 with variety Pusa Sugandha-5 (It is non basmati variety but aromatic) nursery was done on 15 June and 23 days old seedling were transplanted. The experiment laid out using Randomized Block design with five treatments (A = unweed control (Weedy check), B = manual weeding (Two hand weeding), C = herbicide containing Penoxulam + Cyhalofop- butyl, D = Bispyribac sodium, and E = 2, 4 D + Methyl metsulfuron). The results showed that weed control using herbicides containing Bispyribac sodium and 2.4 D + Methyl metsulfuron showed similar results as manual weed control on rice yield. The maximum weed index was observed in weedy check plots.

scholarly journals Efficacy of some weed control methods in soybean during kharif season

2016 ◽  
Vol 8 (1) ◽  
pp. 154-158
Author(s):  
R. Das ◽  
B. C. Patra ◽  
M. K. Mandal ◽  
A. Pathak ◽  
A. K. Dolai
Keyword(s):  
Weed Control ◽  
West Bengal ◽  
Block Design ◽  
Integrated Approach ◽  
Control Methods ◽  
Kharif Season ◽  
Randomized Block Design ◽  
Hand Weeding ◽  
Quizalofop Ethyl ◽  
Polyethylene Mulch

An experiment was undertaken at the C block research farm of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal, to find out the efficacy of some weed control methods in soybean (cv. Bragg) during kharif season of 2011 -12 and 2012-13. The experiment was conducted in randomized block design (RBD) with 8 treatments in 4 replications. Treatments comprised of two different kinds of mulching (paddy straw @ 5 t ha-1 and polyethylene), two herbicides (Flumioxazin @ 30 g a.i. ha-1 as pre-emergence and Quizalofop-ethyl @ 50 g a.i. ha-1 as post-emergence) alone and in combination, twice hand weeding at 25 and 50 days after sowing (DAS), integrated approach of Flumioxazin @ 30 g a.i. ha-1 as pre-emergence along with one hand weeding at 25 DAS and one weedy check treatment. Among the weed control treatments, twice hand weeding at 25 and 50 DAS resulted the highest control of weeds (5.91 gm-2, 6.09 gm-2 at 30 DAS and at harvest respectively) and produced the highest grain yield at harvest (2797 kg ha-1), followed by Flumioxazin @ 30 g a.i. ha-1 as pre-emergence along with one hand weeding at 25 DAS, straw mulch @ 5 t ha-1, polyethylene mulch and combination of Flumioxazin @ 30 g a.i. ha-1 as pre-emergence + Quizalofop-ethyl @ 50 g a.i. ha-1 as post-emergence.

scholarly journals Efektivitas herbisida bentazone sodium (370 g/L) dan MCPA DMA (62 g/L) dalam mengendalikan gulma pada budidaya padi sawah

Kultivasi ◽  
2018 ◽  
Vol 17 (3) ◽  
Author(s):  
Uum Umiyati ◽  
Denny Kurniadie ◽  
Dedi Widayat ◽  
Yayan Sumekar ◽  
A. Iim
Keyword(s):  
Weed Control ◽  
Rice Field ◽  
Rice Yield ◽  
Block Design ◽  
Treatment Control ◽  
Cyperus Difformis ◽  
Randomized Block Design ◽  
Herbicide Mixture ◽  
Manual Weeding ◽  
Ludwigia Adscendens

Sari. Pengendalian gulma pada budidaya padi sawah perlu dilakukan, karena gulma dapat menyebabkan penurunan hasil padi sawah. Penelitian bertujuan untuk mengetahui keefektifan campuran  herbisida Bentazone sodium dan MCPA DMA dalam mengendalikan gulma pada budidaya padi sawah. Percobaan dilaksanakan pada bulan November sampai bulan Desember 2017 di Kecamatan Ciparay Kabupaten Bandung. Rancangan percobaan yang dilakukan yaitu Rancangan Acak Kelompok dengan tujuh perlakuan dan empat kali ulangan, percobaan yang diuji yaitu: campuran herbisida Bentazone sodium + MCPA DMA dosis 0,75 L/ha; 1 L/ha; 1,25 L/ha; 1,5 L/ha; 1,75 L/ha; penyiangan manual, dan tanpa perlakuan (kontrol). Hasil percobaan menunjukkan bahwa perlakuan campuran herbisida Bentazone Sodium + MCPA DMA 0,75 L/ha efektif mengendalikan gulma Fimbristylis miliaceae, Ludwigia adscendes, Cyperus difformis, dan Leptochloa chinensis dan tidak menimbulkan keracunan pada tanaman padi. Campuran herbisida Bentazone Sodium + MCPA DMA 0,75 L/ha – 1,75 L/ha dapat meningkatkan bobot biji kering padi.Kata Kunci: Bentazone sodium, MCPA DMA, Herbisida Campuran, PadiAbstract. Weed control in rice cultivation must be improved, because weeds can decrease rice yield. The purpose of this experiment was to quantify the effectiveness of herbicide mixture of Bentazone sodium and MCPA DMA in controlling weeds on rice field.  The experiment was conducted in Ciparay district, Bandung Regency, from September to Desember 2017. The experiment used experimental method. It used Randomized Block Design (RBD) that consisted of 7 treatments and 4 replications. The treatment was  dosage 0,75 L/ha; 1 L/ha; 1,25 L/ha; 1,5 L/ha; and 1,75 L/ha of herbicide mixture Bentazone sodium + MCPA DMA, Manual weeding, and Without treatment (control). Dosage 0,75 L/ha of herbicide mixture of Bentazone sodium + MCPA DMA effectively control weeds Fimbristylis miliaceae, Ludwigia adscendens, Cyperus difformis, and Leptochloa chinensis. Herbicide mixture of Bentazone sodium + MCPA DMA at all tested doses showed that there was no symptoms of herbicide toxication in rice crops. Herbicide mixture of Bentazone sodium + MCPA DMA at dose 0,75 L/ha – 1,75 L/ha improved dry grain weight.Keyword ; Bentazone sodium, MCPA DMA, mixture herbicide, rice

scholarly journals Economics of Weed Control Methods in Transplanted Rice Fields in Mid-hill of Nepal

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Robinson Adhikary ◽  
Bishnu Bilas Adhikari ◽  
Bishnu Prasad Kandel
Keyword(s):  
Weed Control ◽  
Computer Software ◽  
R Package ◽  
Cost Ratio ◽  
Block Designs ◽  
Control Methods ◽  
Benefit Cost Ratio ◽  
Transplanted Rice ◽  
Hand Weeding ◽  
Benefit Cost

To assess economic of different weed control methods on transplanted rice, a research was conducted at farmers’ fields, Bhanu-11, Rupakot, Nepal during the rainy season of 2017. The experiment was laid out using single factorial Randomized Complete Block Designs (RCBD) with three replications of ten treatments as one hand weeding at 21 Days After Transplanting (DAT) (T1); two hand weedings at 21 and 42 DAT (T2); three hand weedings at 21 42 & 63 DAT (T3); single conoweeding at 21 DAT (T4); double cono weedings at 21 &42 DAT (T5); triple cono weedings at 21, 42 &63 DAT (T6); butachlor as pre emergence (T7); butachlor with single manual weeding at 21 DAT (T8); butachlor with double manual weedings at 21 & 42 DAT (T9) and weedy check (T10). All collected data were subjected to analyzed by computer software R package. The results revealed that butachlor as pre-emergence (T7), showed that significantly higher gross return (Rs. 167.51thousand/ha), net profit (Rs. 96.11thousand/ha) and higher benefit-cost ratio (2.346), which is economically viable and profitable and can recommend to the farmers for rainfed lowland condition.

scholarly journals Eco-Friendly Management Practices on Quality Characteristics of Transplanted Rice (Oryza sativa L.) as Influenced by Organic Manures

2020 ◽  
pp. 193-201
Author(s):  
R. Ajaykumar ◽  
K. Sivasabari
Keyword(s):  
Tamil Nadu ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Block Design ◽  
Farmyard Manure ◽  
Quality Characteristics ◽  
Physical Parameters ◽  
Inorganic Fertilizers ◽  
Transplanted Rice ◽  
Randomized Block Design

A field experiment was conducted at the farm of Tamil Nadu Agricultural University, Coimbatore during kharif season (Spring) to study the effect of eco-friendly management practices on quality characteristics of transplanted lowland rice. Rice CO(R) 48 was used as a test variety. The experiment was laid out in randomized block design (RBD) with three replications and nine treatments which are T1 –100 % N through dhaincha + balance P and K through inorganic fertilizers, T2 – 50 % N through dhaincha + balance N, P and K through inorganic fertilizers, T3 –100 % N through vermicompost + balance P & K through inorganic fertilizers, T4 –50 % N through vermicompost + balance N, P and K through inorganic fertilizers, T5 –100 % NPK (150 : 50 : 50 kg ha-1) through inorganic fertilizers, T6 –100 % NPK through inorganic fertilizers + 12.5 t farmyard manure, T7 – 100 % NPK through inorganic fertilizers + 6.25 t dhaincha, T8 – 100 % NPK through inorganic fertilizers + 5 t vermicompost, T9 – Control. The results revealed that higher quality characteristics of rice including physical parameters (grain length, grain breadth and L/B ratio), chemical parameters (moisture, protein, carbohydrate, amylose, fat and fibre) and cooking quality were obtained with application of 100 % N through dhaincha + balance P & K through inorganic fertilizers followed by application of 100 % NPK through inorganic fertilizers + 6.25 t dhaincha and it was par with application of 100 per cent NPK through inorganic fertilizers + 5 t ha-1 vermicompost and 100 per cent NPK through inorganic fertilizers + 12.5 t farmyard manure. Lower quality characteristics of rice were registered in absolute control.

Effect of weed control practices on weed dynamics, yield and economics of soybean [Glycine max (L.) Merrill]

2015 ◽  
Author(s):  
K. Nandini Devi ◽  
Kh. Lenin Singh ◽  
CNJS Arangba Mangang ◽  
N. Brajendra Singh ◽  
Herojit Singh Athokpam ◽  
...  
Keyword(s):  
Weed Control ◽  
Dry Matter ◽  
Block Design ◽  
Randomized Block Design ◽  
Glycine Max L ◽  
Chlorimuron Ethyl ◽  
Weed Dynamics ◽  
Hand Weeding ◽  
Quizalofop Ethyl ◽  
Weed Emergence

The experiment was laid out in randomized block design with three replications and eight weed control treatments viz., weedy check, polythene mulching as pre emergence (PE), pendimethalin30EC (PE), chlorimuron ethyl 9g ha-1as post emergence (POE), quizalofop ethyl 50g ha-1 (POE), imazethapyr 100g ha-1 as early post emergence (EPOE), one hand weeding at 40 days after sowing (DAS) and two hand weeding at 20 and 40 DAS. The results showed that polythene mulching had the lowest weed dry matter due to effectively suppression of weed emergence. It was followed by twice hand weeding at 20 and 40 days after sowing. Weed index was found to be the highest with weedy check (42.10%) followed by the pre-emergence application of pendimethalin (19.09%). The effect of herbicide applied as pre-emergence was subdued at this belated stage, which may possibly be on account of longer period after application and restricted effective residual period. Plant height, number of pods per plant and grain yield of soybean was found to be highest in the treatments twice hand weeding at 20 and 40 DAS as well as polythene mulching. However, the net return and B:C ratio was lower in comparison to imazethapyr and quizalofop ethyl due to higher cost of labour and polythene material respectively. On an average, the application of imazethapyr as early post emergence (3.17) and quizalofop ethyl (3.02) gave significantly highest B:C ratio than the other treatments for soybean.

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 Selectivity and Effectiveness of Herbicides in the Grain Sorghum Crop

2019 ◽  
Vol 37 ◽  
Author(s):  
G.V. PIMENTEL ◽  
D.F. GUIMARÃES ◽  
S.G. MOREIRA ◽  
M.O.T. ÁVILA ◽  
I.A. MARTINS ◽  
...  
Keyword(s):  
Weed Control ◽  
Block Design ◽  
Mineral Oil ◽  
Grain Sorghum ◽  
The Other ◽  
Randomized Block Design ◽  
Hand Weeding

ABSTRACT: Over the years, cultivated areas of sorghum have expanded considerably in Brazil. Chemical weed control has become an obstacle due to the scarcity of herbicides registered for the crop. The aim of this study was to evaluate the efficiency of weed control and selectivity of herbicides applied in pre and post emergence in the crop. Two experiments were conducted. In one of them, the hybrid BRS 310 was used while DKB 550 was used in the other. The experiments were performed in the field in randomized block design, evaluating seven treatments with four replications. The used treatments were: 1. Hand weeding, 2. S-metolachlor (1,440 g a.i. ha-1), 3. S-metolachlor (1,440 g a.i. ha-1) + atrazine (2,000 g a.i. ha-1), 4. atrazine (2,000 g a.i. ha-1), 5. atrazine (3,000 g a.i. ha-1), 6. atrazine (2,000 g a.i. ha-1) + mineral oil (0.25%), and 7. atrazine (2,000 g a.i. ha-1) + mineral oil (0.5%). It was verified that post-emergence atrazine was efficient in the weed control and selective to the sorghum crop, not affecting productivity, except in mixture with mineral oil (0.5%). S-metolachlor cannot be recommended in pre-emergence for the tested cultivars because it is not selective, reducing plants and productivity.

scholarly journals Weed control efficacy of hoe weeding and commercially formulated mixture of metolachlor + prometryn herbicide under maize production in soil amended with biochar

2019 ◽  
Vol 52 (2) ◽  
pp. 73-78
Author(s):  
Olusegun Raphael Adeyemi ◽  
David Obaloluwa Hosu ◽  
Patience Mojibade Olorunmaiye ◽  
Adeniyi Adebowale Soretire ◽  
Joseph Aremu Adigun ◽  
...  
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Block Design ◽  
Maize Yield ◽  
Field Trials ◽  
Growth And Yield ◽  
Control Methods ◽  
Maize Production ◽  
Randomized Design ◽  
Manual Weeding

Abstract Successful cultivation of maize depends largely on efficient weed control, adequate supply of essential nutrients and sufficient soil moisture. Screenhouse and field trials were conducted at the Teaching and Research Farm of the Federal University of Agriculture, Abeokuta, Nigeria during the early and late cropping season of 2013 to evaluate effects of biochar integrated with manual weeding and pre-emergence herbicides on weed control efficiency and productivity of maize. The screenhouse trial was a 6 × 5 factorial experiment fitted into Completely Randomized Design in three replicates. The two factors were biochar: 0, 2, 4, 6, 8 and 10 t ha−1 and weed control methods: weedy check, hoe weeding at 6 Weeks After Sowing (WAS), hoe weeding at 3, 6, and 9 WAS, pre-emergence herbicide application (Codal Gold) at 1.0 and 2.0 kg a.i./ha−1. The field trial was laid out in split-plot arrangement fitted into Randomized Complete Block Design with three replicates. The three main treatments plots on the field consisted of the optimum rates of biochar obtained in the screenhouse (10 t ha−1) compared with 20 t ha−1 and 0 t ha−1 which served as the control. The sub-plots treatments consisted of weed control methods used in the screen house experiment. Data were collected on grain yield and weed dry matter. The result showed that biochar at 10 and 20 t ha−1 in the screenhouse and field trials, respectively, resulted in significantly (P < 0.05) higher grain yield compared with other rates tested. Highest grain yield was obtained in pots hoe weeded thrice at 3, 6 and 9 WAS. Whereas similar grain yield was recorded in plot weeded once at 6 WAS and that hoe weeded at 3, 6 and 9 WAS in the field experiment. Biochar application of 20 t ha−1 gave optimum maize yield. Among the weed control treatments manual weeding either at 6 WAS or at 3, 6 and 9 WAS recorded the highest grain yields. Therefore, incorporation of biochar with either preemergence herbicide or manual hoe weeding would enhance the growth and yield of maize.

scholarly journals Chemical Weed Management in Transplanted Rice (Oryza sativa L.) under Rice – Mustard Cropping System

2020 ◽  
pp. 63-72
Author(s):  
Rupen Sharma ◽  
Jaladhar Gorain ◽  
Parthendu Poddar ◽  
Sagar Maitra ◽  
Manjil Pandey
Keyword(s):  
Sodium Salt ◽  
Weed Management ◽  
Oryza Sativa L ◽  
Management Practice ◽  
Block Design ◽  
Rice Variety ◽  
Cropping System ◽  
Transplanted Rice ◽  
Randomized Block Design ◽  
Stover Yield

An experiment was conducted at instructional farm Uttar Banga Krishi Viswavidyalaya during kharif season, 2017 to find out a suitable chemical weed management practice in transplanted rice. The experiment was laid out in randomized block design having 12 treatments replicated thrice. The treatments were T1: Weedy check, T2: Weed free, T3: Bispyribac sodium 10% SC @ 20 g a.i ha-1 at 14 DAT, T4: Bispyribac sodium 10% SC @ 30 g a.i  ha-1 at 14 DAT, T5: Butachlor 1.5 kg a.i ha-1 at 3 DAT, T6: Pendimethalin 1.0 kg a.i. ha-1 at 3 DAT, T7: Pretilachlor 0.60 kg a.i ha-1 at 3 DAT + 2,4-D sodium salt 0.50 kg a.i ha-1 at 30 DAT, T8: Butachlor 1.5 kg a.i ha-1 at 3 DAT + 2,4-D sodium salt 0.50 kg a.i ha-1 at 30 DAT, T9: Metsulfuron methyl 20% WP @ 8 g a.i ha-1 at 14 DAT, T10: Pretilachlor 0.60 kg a.i ha-1 at 3 DAT + Almix @ 20 g a.i. ha-1 at 21 DAT, T11: Butachlor 1.5 kg a.i. ha-1 at 3 DAT + Bispyribac sodium 10% SC @ 20 g a.i  ha-1 at 21 DAT and T12: Almix @ 20 g a.i ha-1 at 21 DAT. The rice variety used in the experiment was MTU 1075. It was observed that different herbicides treatments influenced weed control efficiency, weed index and yield components in transplanted rice. The highest number of filled grains (113.12 panicle-1), 1000 grain weight (22.90 g), grain yield (5.07 t ha-1) and straw yield (7.15 t ha-1) of rice was recorded with weed free (T2) treatment being at par with T11, T4, T3 and T10. In mustard, plots under weed free i.e. T2 treatment in rice performed the best in terms of every yield attribute viz. number of siliqua (77.00 plant-1), number of seeds (20.41siliqua-1), 1000 seed weight (3.14 g) as well as seed yield (1067.46 kg ha-1) and stover yield (2157.40 kg ha-1) being statistically at par with the plots under treatment T11 & plots under treatment T4. It can be concluded that the treatment comprising combination of pre-emergence & post-emergence herbicide like T11 i.e. Butachlor 1.5 kg a.i. ha-1 at 3 DAT + Bispyribac sodium 10% SC @ 20 g a.i. ha-1 at 21 DAT or application of higher dose of efficient & highly effective post-emergent herbicide molecule like T4 i.e. Bispyribac sodium 10% SC @ 30 g a.i  ha-1 at 14 DAT can be opted for sufficient control of weeds in transplanted kharif paddy in terai zone of West Bengal to maximize the economic return.

scholarly journals Weed control efficiency and weed index as influenced by weed management practices in machine transplanted rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 1947-1952
Author(s):  
R. B. Negalur ◽  
A. S. Halepyati
Keyword(s):  
Oryza Sativa ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Weed Population ◽  
Transplanted Rice ◽  
Hand Weeding ◽  
Row Space

Field experiment on effect of different weed management practices in machine transplanted rice (Oryza sativa L.) was conducted at ARS, Gangavathi, University of Agricultural Sciences, Raichur, Karnataka during kharif, 2012 and 2013 under irrigated condition in clay soil. Pooled mean indicated that, application of butachlor 50 EC fb passing of power operated low land rice weeder twice at 20 and 30 DAT with hand weeding in intra row space recorded significantly lower grassy weed population and dry weight at 40, 60 DAT and at harvest (1.98, 2.47, 2.97/0.25 m2 and 1.00, 1.20, 1.47 g /0.25 m2, respectively), sedge weed population and dry weight (2.61, 3.21, 3.52 /0.25 m2 and 1.19, 1.48, 1.71 g /0.25 m2, respectively) and broad leaved weed population and dry weight (1.68, 2.10, 2.52 / 0.25 m2 and 0.91, 1.06, 1.28 g /0.25 m2, respectively). Significantly higher WCE (87.53%), lower weed index (3.11 %), grain and straw yield (5160 and 6482 kg ha-1, respectively), gross and net returns (Rs. 92,212 and 50,410 ha-1, respectively), and B:C of 2.22 over unweeded check. Hence, application of butachlor 50 EC fb passing of power operated low land rice weeder at 20 and 30 DAT with hand weeding in intra row space was found to be the best weed control method as it recorded higher B:C. Present conventional manual weeding is which is not advantageous as it is costlier, time consuming and labour may trample and damage rice seedlings. Mechanical weeder and sequential application can overcome the same.

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