scholarly journals Impact of integrated weed management on yield and economics of Kharif maize (Zea mays L.)

2021 ◽  
Vol 16 (AAEBSSD) ◽  
pp. 73-76
Author(s):  
A. S. Bade ◽  
J. B. Patil ◽  
P. N. Gajbhiye ◽  
I. Sarwar ◽  
Kiran Yadav
Keyword(s):  
Zea Mays ◽  
Field Experiment ◽  
Weed Management ◽  
Zea Mays L ◽  
Block Design ◽  
Integrated Weed Management ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Hand Weeding ◽  
The Impact

A field experiment conducted to evaluate the impact of integrated weed management on economics of Kharif maize (Zea mays L.) during Kharif, 2020 at Post Graduate Research Farm, RCSM College of Agriculture, Kolhapur. The field experiment was laid out in Randomized Block Design (RBD) having eight treatments replicated thrice.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 increase in grain and straw yields of maize as compared to remaining weed management treatments. Significantly lowest values for yield and yield attributes was observed in weedy check treatment.Maximum gross monetary returns and net monetary returns were observed in weed free check treatment was Rs. 183225.5 ha-1 and Rs. 126320.7 ha-1, respectively. 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 recorded maximum B: C ratio (3.34).

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.

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

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.

scholarly journals Study the Impact of Vermicompost, Zinc and Iron on the Performance of Hybrid Maize (Zea mays L.)

2021 ◽  
pp. 1-11
Author(s):  
Hanuman Prasad Pandey ◽  
A. K. Sachan ◽  
R. K. Pathak ◽  
U. S. Tiwari ◽  
R. K. Pandey ◽  
...  
Keyword(s):  
Zea Mays ◽  
Field Experiment ◽  
Present Experiment ◽  
Zea Mays L ◽  
Block Design ◽  
Plant Population ◽  
Randomized Block Design ◽  
Maize Variety ◽  
Hybrid Maize ◽  
The Impact

A field experiment was conducted on student instructional farm (SIF) of Chandra Shekhar AzadUniversity of Agriculture and Technology, Kanpur, U.P. during kharif season 2019 and 2020, the present experiment having 32 treatments replicated thrice in factorial randomized block design on same laid out at same location. Hybrid maize variety Pioneer 3377 was sown at 60 × 20 cm (row×plant) during both the years, Soil application of Zinc (5.0 kg) and Iron (10 kg) along with 2.5 tonne vermicompost ha-1 gave significant increase (except plant population) in plant population m-2 (9.23 & 9.26), Plant height (195cm & 198 cm), number of cobs plant-1 (1.80 & 1.82), number of cobs m-2 (18 & 18) over control during 2019 and 2020.

scholarly journals STUDIES ON HETEROSIS AND COMBINING ABILITY THROUGH DIALLEL METHOD IN MAIZE (ZEA MAYS L.)

2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Mahipat Singh Yadav ◽  
B. Gangwar
Keyword(s):  
Zea Mays ◽  
Seed Yield ◽  
Combining Ability ◽  
Yield Components ◽  
Zea Mays L ◽  
Growth Parameters ◽  
Block Design ◽  
Rabi Season ◽  
Yield Attributes ◽  
Randomized Block Design

The present investigation was conducted using 28 different genotypes (seven parents and their 21 F1s) of maize under organic conditions at the Rain-fed Organic Research Farm, Narayanbag, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.) India, during kharif 2018 and rabi season 2018-19. In order to determine the general and specific combining ability of parents and the crosses, the growth parameters and yield components were evaluated in a 7×7 diallel fashion in maize in a Randomized Block Design (RBD) with three replications. In this study, the GCA effects suggested that parent P1, P2 and P4 were the most desirable as they possessed high GCA effect for most of the characters. Among F1 crosses, P4 x P3, P3 x P1, P5 x P3 and P7 x P5 having significant positive SCA were found to be desirable for yield and yield attributing characters. The maximum heterotic effects in desirable direction for yield attributes were showed by the cross combinations viz; P1 x P6, P2 x P7, P2 x P5, P1 x P2, P3 x P4, P5 x P7 and P3 x P5. The maximum heterosis was recorded in for Seed yield per plant P5 x P7 (39.32%) which ranged from -14.69 to 49.55.

scholarly journals ​Effect of Integrated Weed Management on Weed and Yield of Direct Seeded Rice

2021 ◽  
Author(s):  
Suryakanta Kashyap ◽  
V.P. Singh ◽  
S.K. Guru ◽  
Tej Pratap ◽  
S.P. Singh ◽  
...  
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Crop Yields ◽  
Block Design ◽  
Integrated Weed Management ◽  
Row Spacing ◽  
Weed Density ◽  
Direct Seeded ◽  
Hand Weeding ◽  
The Impact

Background: Weeds are the major threat to direct seeded rice and a single strategy of weed control may not be effective for season-long weed control. Intending to accomplish the long-term and sustainable weed management of direct seeded rice, the integration approach of weed management strategies seems a better alternative. The current field study was aimed to evaluate the impact of integration of different weed control methods on direct seeded rice under irrigated ecosystem on weed growth and rice yield. Methods: The experiment was laid out in randomized block design with three replications and twelve treatments during 2017 at G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India. The twelve treatments included the combination of cultural, mechanical, physical and chemical weed management methods. Result: Combination of stale seedbed technique integrated with pre-emergence application of pendimethalin with mechanical weeding at 25 DAS followed by 1 hand weeding at 45 DAS, Sesbania (line sowing) fb application of pendimethalin (PE) fb 1 mechanical weeding at 25 DAS fb 1 hand weeding at 45 DAS, stale seedbed with application of pendimethalin (PE) with Sesbania brown manuring supplemented with mechanical weeding (25 DAS) fb hand weeding at 45 DAS, mulching with wheat straw mulch along with post-emergence application of penoxsulam (20 DAS) fb 1 hand weeding at 45 DAS and application of pendimethalin (PE) fb penoxsulum (PoE) at 20 DAS fb 1 hand weeding at 45 DAS with a row spacing of 25 cm found to be similar in the suppression of weed population and weed density at 40 and 60 DAS and crop yields (4.3, 4.1, 4.2, 4.0 and 4.2 t/ha, respectively) were on par with weed free plot i.e. 4.4t/ha. Application of pendimethalin (PE) fb penoxsulum (PoE) at 20 DAS fb 1 hand weeding at 45 DAS with row spacing of 25cm recorded 93.7%, 90.6% and 4.5% weed control efficiency, weed control index and weed index respectively, which was similar with above integrated weed management treatments. A negative correlation of the weed density and dry matter with the yield of rice was recorded.

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.

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 Influence of Nitrogen and Zinc on Growth and Yield of Baby Corn (Zea mays L.)

2021 ◽  
pp. 64-70
Author(s):  
M. Tharaka ◽  
K. RaviChandra ◽  
Vikram Singh
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Research Station ◽  
Corn Yield ◽  
Area Index ◽  
Yield Attributes ◽  
Randomized Block Design

An experiment was conducted during the Rabi season of 2020 at Fodder Production Farm of Livestock Research Station (Sri Venkateswara Veterinary University), Lam Farm, Guntur. A.P, to find out the effect of basal application of Nitrogen and Zinc on growth and yield of Baby corn (Zea mays L.). The experiment was laid out in Randomized Block Design with 9 treatments and each treatment replicated thrice. Treatments consisted of combination of three levels of Nitrogen (80,100 and 120kg/ha) and three levels of Zinc (10, 20 and 30 kg/ha). It was observed that application of 100 kg Nitrogen /ha + 30 kg Zinc/ha, was found the best treatment for obtaining growth and yield attributes such as Plant height (178.46 cm), Plant dry weight (105.58 g), No. of leaves per plant (12.00), Leaf area index (3.07), No. of cobs per plant (4.19), Length of cob (20.72 cm), Length of the corn (9.06 cm), Girth of the cob (7.34 cm), Corn girth (3.42), Cob yield (16026.53 kg/ha) and Corn yield (2597.47 kg/ha in Krishna zone of Andhra Pradesh, India.

scholarly journals Effect of integrated weed management on groundnut (Arachis hypogea)

2021 ◽  
Vol 17 (2) ◽  
pp. 404-408
Author(s):  
J. P. Bholane ◽  
Y. R. Patil ◽  
V. M. Bhale
Keyword(s):  
Weed Management ◽  
Block Design ◽  
Bacterial Count ◽  
Integrated Weed Management ◽  
Free Condition ◽  
Arachis Hypogea ◽  
Pod Yield ◽  
Randomized Block Design ◽  
Soil Actinomycetes ◽  
Hand Weeding

An experiment on integrated weed management in groundnut (Arachis hypogea) was conducted at Department of Agronomy during 2009-10. Ten treatments which included three herbicides viz., Pendimethalin, Quizolofop ethyl, Imazethapyr with mechanical weeding were studied in Randomized Block Design. Complete weed free condition recorded highest dry pod yield (1786 kgha-1). Pre-emergence application of Pendimethalin 1.0 kg a.i./ha followed by one hand weeding at 15 days after sowing, recorded 10.8 pods/plant as against 4.97 pods/plant and 60.0 nodule per plant as against 37.5 in unweeded control. Preemergence application of Pendimethalin @ 1.0 kg a.i./ha followed by post-emergence Imazethapyr @ 75 g a.i./ha at 15 days after sowing increased pod yield (1255 kgha-1), shelling % and 100 kernal weight. Application of Pendimethalin recorded increased soil fungal count 16.0X104 cfu g-1, soil actinomycetes count 15.67X106 cfu g-1 and soil bacterial count 20.33X10 cfu g-1 compared to unweeded control.

scholarly journals Weed Dynamics in Maize (Zea mays L.) as Influenced by Pre and Post-emergence Herbicides under Temperate Conditions of Western Himalayan Region

2020 ◽  
pp. 123-131
Author(s):  
Faisul-ur- Rasool ◽  
M. I. Bhat ◽  
Z. A. Dar ◽  
S. A. Hakeem ◽  
S. Nasseer ◽  
...  
Keyword(s):  
Zea Mays ◽  
Sodium Salt ◽  
Field Experiments ◽  
Zea Mays L ◽  
Block Design ◽  
Research Station ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Weed Dynamics ◽  
Hand Weeding

Field experiments were conducted in 2017-18 during main cropping  seasons of the year 2017 and 2018 at Dryland (Karewa) Agriculture Research Station, SKUAST-K to determine the effect of different post and pre emergence herbicides application on weed dynamics in maize (Zea mays L.). The experiment was laid out in randomized block design with four replications and variety used was Bio-605. Five treatments Five treatments viz, Atrazine 50% WP @ 1.0 kg ha-1 as pre-emergence and Paraquat dichloride 24% SL @ 0.5 kg ha-1, 2,4-D sodium salt 58% WSC @ 1.0 kg ha-1 as post-emergence herbicides (application at 2-3 leaf stage of weeds), hand weeding as standard check and weedy check as control were used. Effect of different herbicides on weed density was found significant. in plots managed with hand weeding, no weed was recorded. The Atrazine treated plots @ 1.0 kg ai ha-1 as pre-emergence had the weed population of 5.51, 5.4, 3.73, 5.12, 4.28 and 41.4m-2 , respectively in Echinochloa spp., Eleusine indica, Digitaria sanguinalis, Amaranthus viridis, Sorghum halepense and Cyperus spp.  However, the maximum population of weeds was recorded in weedy check with 21.54 m-2, 20.87 m-2, 19.16  m-2, 21.5 m-2, 16.7 m-2 and 60.7 m-2. No significant difference was observed between Paraquat dichloride 24% SL @ 0.5 kg ai ha-1 and 2,4- D Sodium salt 58% WSC  @ 1.0 kg ai ha-1 except for Cyperus spp. with density of 51.37 m-2 and 43.04 m-2 respectively. The potential of the atrazine in controlling weeds thereby enhancing yield of maize was found in this study.

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