scholarly journals Integrated Weed Management on Growth, Yield and Economics in Okra (Abelmoschus esculentus (L.) Moench) Under Kharif

2017 ◽  
Vol 104 (.1-.4) ◽  
Author(s):  
Rajasree V ◽  
◽  
Sathiyamurthy V A ◽  
Shanmugasundaram T ◽  
Arumugam T

A field experiment was carried out at College Orchard, Department of Vegetable Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore during 2014 to 2017 to investigate integrated weed management on growth, yield and economics in okra (Abelmoschus esculentus (L.) Moench) cv. COBhH 1 during kharif seasons. The experiment was laid out in Randomized Block Design (RBD) with seven treatments and replicated three times. The growth and yield attributes viz., plant height, number of fruits per plant, fruit yield per plant, fruit length, fruit girth, fruit yield kg per plot and fruit yield (q/ha) differed significantly due to different treatments. Growth and yield attributes increased significantly in weed free check (T2 ) which led to appropriate timing of weeding which reduced the influence of weed interference and increased the yield in okra. The results revealed that weed free check (T2 ) recorded the higher plant height (151.80 cm), number of fruits/plant (27.30) with an average fruit yield of 0.501 g per plant, fruit length (13.53 cm), fruit girth (7.53 cm), fruit yield (233.9 q/ha) and low weed density (12.03/m2 ) at 60 days after sowing. Whereas, the high cost benefit ratio (2.88) was recorded in pre emergence of pendimethalin @ 1.0 kg/ha + one hand weeding (T4 ) which also recorded 23.36 number of fruits/plant with fruit yield of 223.0 q/ha. It is therefore recommended that pre emergence application of pendimethalin @ 1.0 kg/ha + one hand weeding will be optimal for okra production in kharif season.

2013 ◽  
Vol 3 ◽  
pp. 53-63 ◽  
Author(s):  
KP Bhurer ◽  
DN Yadav ◽  
JK Ladha ◽  
RB Thapa ◽  
K Pandey

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


2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 292-296
Author(s):  
A. S. Bade ◽  
J. B. Patil ◽  
R. H. Shinde ◽  
I. Sarwar ◽  
V. R. Bavdekar

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.


2016 ◽  
Vol 50 (5) ◽  
Author(s):  
Hemlata Verma ◽  
Parwat Singh Badole ◽  
D. D. Nawange

A study of effect of foliar application of gibberellic acids (GA) and napthalene acetic acids (NAA) each at 0, 10, 20 and 30 ppm concentrations revealed that plant growth, phonological parameter, yield-attributing parameters and yield of okra increased significantly with the increase in concentration. The application of GA at 30 ppm gave maximum fruit length, fruit thickness, green fruits yield and dry weight of fruits. Similarly, 30 ppm NAA gave maximum fruit length, fruit thickness, green fruits yield and dry weight of fruits. The treatment interactions were found significant only at 45 DAS stage in plant height, at 15 DAS stage in case of leaves/plant and only at 45 and 60 DAS stage in case of branches / plant. The highest net returns was obtained with application of 30 ppm each of GA and NAA .


Author(s):  
G. Sidhartha ◽  
Md. Latheef Pasha ◽  
M. Umadevi ◽  
V. Ramulu

A field experiment on cauliflower with different drip irrigation and NK fertigation levels was conducted at Rajendranagar, Hyderabad, Telangana during rabi 2019-2020. The experiment was laid out in a split plot design with nine treatments, comprising of three drip irrigation regimes viz., 0.6 Epan (I1), 0.8 Epan (I2) and 1.0 Epan (I3) as main plots and three drip NK fertigation levels of control (N0K0-F1), 50 % recommended dose of NK (N40 K50- F2) and 100 % recommended dose of NK (N80 K100- F3) as sub plots and replicated thrice. Growth and yield attributes were significantly higher at irrigation scheduled at 1.0 Epan. Plant height and yield attributes were comparable between 1.0 Epan and 0.8 Epan. Whereas plant height and dry matter production between 0.8 and 0.6 Epan were comparable. Drip irrigation scheduled at 1.0 Epan recorded significantly higher curd yield (18.7 t ha-1) than 0.8 Epan (17.1 t ha-1) and 0.6 Epan (15.0 t ha-1). NPK uptake were significantly higher in irrigation scheduled at 1.0 Epan than 0.8 and 0.6 Epan.  All growth, yield attributes and NPK uptake at harvest increased significantly with increase in NK fertigation level from control to 100% recommended dose of NK. Drip fertigation at 100 %  recommended dose of NK recorded significantly higher curd yield (23.8 t ha-1) than 50 % recommended dose of NK (19.7 t ha-1) and N0K0 (7.2 t ha-1).  Application of 1.0 E Pan irrigation and 100% recommended dose of NK performed better than other treatments.


Author(s):  
Prakash Ranjan Behera ◽  
T. Chitdeshwari

Micronutrients, particularly Zinc (Zn), play a vital role in the growth and development of plants due to its catalytic effect on many metabolic processes. However, the varietal responses to growth and yield vary significantly. A screening experiment was conducted to know the growth and yield response of six capsicum hybrids viz., Indra, Priyanka, Inspiration, Massilia, Bachata and Local green with two levels of ZnSO4 (with and without  ZnSO4) as basal soil application. The growth and yield attributes at harvest stage was recorded. The dry matter production (DMP) and fresh fruit yield was also noted for all the six hybrids. Results revealed that, Zn fertilisation significantly improved the plant height, root growth, fruit development as well as fresh fruits yield. Higher plant height (83 cm), root length (37 cm), root volume (13 cc), fruit numbers, fruit weight (15 and 133g), fruit length, girth, pericarp thickness (9.17, 8.25 and 0.67 cm), DMP (65.0 g pot-1) as well as fresh fruit yield (4.70 kg pot-1) were observed with Indra followed by Inspiration and Bachata. Lesser response for the Zn application was noticed with the local green hybrid for various growth and yield traits. Indra was found to be highly responsive to Zn fertilisation while Inspiration, Bachata, Massilia, and Priyanka were medium responsive and local green hybrid was observed to be less responsive to Zn fertilisation.


2020 ◽  
Vol 4 (2) ◽  
pp. 88-100
Author(s):  
Shams Shaila Islam ◽  
Riyad Ul-Hasan Karim ◽  
Harmailis Chaniago ◽  
Sohrab Hossain

This research was conducted to investigate the effect of different herbicides with weed management practices on growth and yield performance of mungbean genotypes. The experiment consisted of two factors were mungbean genotypes and weed management. There were two genotypes namely BARI Mung 6 and BARI Mung 8. While there were five weed management practices namely control/no weeding and without herbicide application (T1), hand weeding at 20 and 40 DAS (T2), pre emergence herbicide (Panida) at 1-2 DAS (T3), pre emergence herbicide (Neon) at 2-3 DAS (T4), and post emergence herbicide (Neon) at 10-15 DAS+hand weeding (T5). The results revealed that BARI Mung 6 stand superior to BARI Mung 8 in respect of dry matter content/plant, pods/plant, seeds/plant, seed yield, and 1000 seed weight. Among weed management practices, maximum plant height (53.70 cm), dry matter weight/plant (17.96 g), pods/plant (18.31), seeds/plant (171.47), maximum weed control efficiency (33.78 %) obtained from T3 treatment. Based on the interaction effect showed that BARI Mung 6 weeded with pre emergence herbicide (Panida) at 1-2 DAS produced maximum seed yield (1.79 t/ha) as well as yield attributes showed 2.29 % higher seed yield.


Author(s):  
Narinder Panotra ◽  
Ashwani Kumar

<div><p><em>A Field investigation was conducted during the </em><em>Rabi season of 2003-04 and 2004-05 at Baraut, Uttar Pradesh, to find out most suitable weed management practices on winter French bean. Among the 12 weed management treatments in French bean viz. weedy check, hand weeding at 30 days after sowing, weed free, fluchloralin @ 0.75 kg/ha, fluchloralin @ 1.0 kg/ha, fluchloralin @ 0.75 kg/ha with hand weeding at 30 days after sowing, pendimethalin @ 0.75 kg/ha, pendimethalin @ 1.0 kg/ha, pendimethalin @ 0.75 kg/ha with hand weeding at 30 days after sowing, oxyfluorfen @ 0.15 kg/ha, oxyfluorfen 0.20 kg/ha, oxyfluorfen @ 0.15 kg/ha with hand weeding at 30 days after sowing.<strong> </strong>Application of fluchloralin (pre-planting) @ 1.0 kg a.i./ha had maximum weed control efficiency (79.8%), which was at par to  pre-emergence application of pendimethalin1.0 kg/ha (78.7%). The effect of these herbicides were also pronomced in terms of different growth and yield attributes of French bean crop and had maximum number of branches/plant (6.16 to 6.23), leaf area index (1.06 to 1.07), number of pods/plant (5.51 to 5.53) and 100-seed weight (316.2 to 316.7). The highest yield (1.11 to 1.10 t/ha) and N uptake (52.52 to 52.95 kg/ha) was noticed under fluchloralin or pendimethalin applied plot 1.0 kg/ha also it had reduced N losses through weeds. Economic evaluation in terms of returns Rs./Re invested was maximum under fluchloralin or pendimethalin applied plot reveals the significance of these herbicides in western Uttar Pradesh.</em></p></div>


Author(s):  
Ainullah Habibi ◽  
Tamim Fazily

A field experiment entitled “Effect of sowing dates on growth, yield attributes and yield of four wheat varieties” was conducted during winter season of 2016-17 on sandy loam soils of Poz-e-Ishan Research Farm of Agricultural Faculty of Baghlan University. The experiment was laid out in split plot design viz. four dates of sowing comprised of (16th November, 01st December, 16th December and 31st December 2016) as main plot treatments and four varieties (Solh 02, Gul 09, Muqawim 09, Kabul 013) as sub plot treatments with four replications. The highest plant height, number of effective per plant, test weight and grain yield of wheat was recorded with all varieties sown on 16 Nov-16, which was statistically identical with all treatments sown on 01 Dec-16 but significantly higher over rest of date of sowing. Among wheat varieties Kabul 013 and Gul 09 produced significantly higher plant height, number of effective per plant, test weight and grain yield of wheat over rest of the varieties. KEY-WORDS: Date of sowing, wheat varieties, growth and yield


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