scholarly journals Weed Management in Wheat by Cuscuta Alone and in Combination with Commercial Weedicides Allymax and Axial

2020 ◽  
Vol 38 ◽  
Author(s):  
Y. ABDULLAH ◽  
M.S. BALOCH ◽  
A.N. SHAH ◽  
M.M. HASHIM ◽  
M.A. NADIM ◽  
...  
Keyword(s):  
Leaf Area ◽  
Aqueous Extract ◽  
Weed Management ◽  
Block Design ◽  
Wheat Yield ◽  
Wheat Crop ◽  
Limiting Factor ◽  
Area Index ◽  
Net Assimilation ◽  
Hand Weeding

ABSTRACT: The present study was to assess the additive effects of cuscuta (akasbel) aqueous extract alone and in combination with full and reduced doses of commercially available weedicides against weeds in wheat crop during the year 2016-2017. The study was conducted in a randomized complete block design (RCBD) with 3 replications. The results showed that hand weeding and use of weedicides Allymax and Axial (full and half recommended doses) significantly controlled all prevailing weeds and increased yield and yield contributing parameters over the weedy check/control and sole application of cuscuta aqueous extract. Hand weeding and Allymax (full dose) showed minimum weed population, relative density, fresh and dry weed biomass and higher leaf area index (LAI), leaf area duration (LAD), crop growth rate (CGR), plant height, 1000 grain weight and grain yield while net assimilation rate (NAR), chlorophyll content, number of tillers, spike length, grains spike-1 and biological yield were maximum only in hand weeding. These findings suggest that in order to attain highest wheat yield, the field should be kept free from weeds by hand weeding (if labour is not a limiting factor) or use recommended dose of weedicide Allymax for efficient weed management in wheat.

Productivity augmentation of greengram (Vigna radiata) through weed management

2018 ◽  
Author(s):  
S. P. Singh ◽  
R. S. Yadav ◽  
Amit Kumawat ◽  
R. R. Jakhar
Keyword(s):  
Weed Management ◽  
Agricultural Research ◽  
Block Design ◽  
Research Station ◽  
Area Index ◽  
Leaf Stage ◽  
Net Returns ◽  
Randomized Block Design ◽  
Hand Weeding ◽  
Weeds Control

A field experiment was conducted at Research Farm of Agricultural Research Station, Swami Keshwanand Rajasthan Agricultural University, Bikaner during three consecutive kharif season of 2013, 2014 and 2015. The experiment comprising ten weeds control treatments consisting of pendamethalin 1000 g/ha (PE), imazethapyr 50g/ha (3-4 leaf stage of crop), imazethapyr 70g/ha (3-4 leaf stage of crop), pendamethalin + imazethapyr 800g/ha (PE), pendamethalin + imazethapyr 900g/ha (PE), pendamethalin + imazethapyr 1000g/ha (PE), imazethapyr + imazamox 60g/ha (3-4 leaf stage of crop), imazethapyr + imazamox 70g/ha (3-4 leaf stage of crop), 2 hand weeding at 20 and 40 DAS and weedy check in randomized block design (RBD) with three replications. Two hand weeding at 20 and 40 DAS was found most effective to control weeds in greengram and recorded lowest weed count and weed dry matter of both broad leaved and grassy weeds. It was also recorded significantly highest branches/pant, leaf area index, total chlorophyll, protein content in seed, pods/plant, seeds/pod and seed, straw and biological yield over other treatments. Among different herbicides, pendamethalin + imazethapyr 800g recorded significantly higher net returns (31350/ha) and B:C ratio (2.70).

scholarly journals Growth attributes of rapeseed varieties (Brassica campestris l.) in relation to sowing dates and weedings treatments

2015 ◽  
Vol 21 ◽  
pp. 51-59
Author(s):  
Mst Towhida Akhter ◽  
PB Kundu ◽  
NK Paul
Keyword(s):  
Leaf Area ◽  
Brassica Campestris ◽  
Sowing Date ◽  
Area Index ◽  
Crop Growth Rate ◽  
Sowing Dates ◽  
Growth Attributes ◽  
Net Assimilation ◽  
Hand Weeding ◽  
Plot Design

Context: To analyze the effect of sowing dates and weeding treatments on growth attributes such as total dry matter (TDM), leaf area index (LAI), net assimilation rate (NAR), crop growth rate (CGR), leaf area ratio (LAR) of three rapeseed (Brassica campestris L.) Objectives: The objective of the study was to identify the growth in relation to sowing dates and weed competition and identify the weeding number for better growth of rapeseed. Materials and Methods: This investigation was arranged as factorial experiment based on the split-split plot design with three replications. Four sowing dates were including 18 October (S1), 12 November (S2), 17 November (S3) and 3 December (S4) and three weeding treatments were no weeding (W0), one hand weeding (W1) and two hand weeding (W2) and three varieties viz., BINA Sarisha-5, BINA Sarisha-6 and BARI Sarisha-14 were investigated. Results: The results showed that, TDM, LAI, CGR, NAR and LAR were affected by sowing date and weeding treatments. The highest TDM, LAI and CGR were obtained in the first sowing and two weedings treatment. The highest NAR was found in S2 plants and W0 treatment. The highest LAR was found in S2 plants and W1 treatment. Conclusion: The results obtained in this study suggest that the first sowing and two weeding treatments are superior for the production of rapeseed. DOI: http://dx.doi.org/10.3329/jbs.v21i0.22519 J. bio-sci. 21: 51-59, 2013

scholarly journals Response of integrated fertilizer and weed management on weed occurrence and growth traits of aromatic Boro rice

2020 ◽  
Vol 5 (3) ◽  
pp. 337-346
Author(s):  
Purnendu Roy ◽  
Md. Abdur Rahman Sarkar ◽  
Newton Chandra Paul ◽  
Kallyan Kanty Saha ◽  
Swapan Kumar Paul
Keyword(s):  
Growth Performance ◽  
Weed Management ◽  
Growth Traits ◽  
Block Design ◽  
Poultry Manure ◽  
Recommended Dose ◽  
Inorganic Fertilizers ◽  
Area Index ◽  
Hand Weeding ◽  
Boro Rice

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to study the effect of integrated fertilizer and weed management on the growth performance of aromatic Boro rice (cv. BRRI dhan50). The experiment comprised six fertilizer managements viz., control (no manures and no fertilizers), recommended dose of inorganic fertilizers (i.e. Urea, TSP, MoP, Gypsum, ZnSO4 @ 250, 120, 120, 100, 10 kg ha-1, respectively), 50% of recommended dose of inorganic fertilizers + cowdung @ 5 t ha-1, 75% of recommended dose of inorganic fertilizers + cowdung @ 5 t ha-1, 50% of recommended dose of inorganic fertilizers + poultry manure @ 2.5 t ha-1, and 75% of recommended dose of inorganic fertilizers +  poultry manure @ 2.5 t ha-1 and four weed managements viz., control (no weeding), pre-emergence herbicide, Panida 33 EC @ 2.5 l ha-1 + one hand weeding at 35 DAT, post-emergence herbicide, Granite 240 SC @ 93.70 ml ha-1 + one hand weeding at 35 DAT, pre-emergence herbicide, Panida 33 EC @ 2.5 l ha-1 + post-emergence herbicide, Granite 240 SC @ 93.70 ml ha-1. The experiment was laid out in a factorial randomized complete block design with three replications. Growth traits of aromatic Boro rice (cv. BRRI dhan50) were significantly influenced by integrated fertilizer and weed management. Plant height, number of tillers hill-1, total dry matter, leaf area index (LAI) and crop growth rate (CGR) gave their highest values in 75% of recommended dose of inorganic fertilizers and poultry manure @ 2.5 t ha-1 along with pre-emergence herbicide, Panida 33 EC @ 2.5 l ha-1 + post-emergence herbicide, Granite 240 SC @ 93.70 ml ha-1 while their corresponding lowest values were found in control. So it can be concluded that, the interaction of 75% of recommended dose of inorganic fertilizers and poultry manure @ 2.5 t ha-1 along with pre-emergence herbicide (Panida 33 EC @ 2.5 l ha-1) + post-emergence herbicide (Granite 240 SC @ 93.70 ml ha-1) appears as the promising combination in respect of growth performance of aromatic Boro rice (cv. BRRI dhan50).

scholarly journals Application of Various Herbicides on Controlling Large and Narrow Leaf Weeds and Their Effects on Physiological and Agronomic Traits of Wheat

2020 ◽  
Vol 38 ◽  
Author(s):  
A. Bari ◽  
M.S. Baloch ◽  
A.N. Shah ◽  
A.A. Khakwani ◽  
I. Hussain ◽  
...  
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Agronomic Traits ◽  
Block Design ◽  
Research Area ◽  
Climatic Conditions ◽  
Wheat Crop ◽  
Main Plot ◽  
Hand Weeding ◽  
Almost All

ABSTRACT: In order to examine application of various herbicides for controlling weeds in wheat crop, a field trial was conducted at the Agronomic Research Area, Faculty of Agriculture, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa (KPK) during the year 2015-2016. The experiment was laid out in a randomized complete block design (RCBD) with split-plot arrangements having three replications. The main plot was comprised application time of herbicides while the use of herbicides was assigned to sub-plots. The data revealed that most of the weed parameters, physiological traits and agronomic attributes of crop plants were significantly affected by weed management practices including the use of herbicides at different time intervals over the weedy check. Hand weeding technique excelled all other weed management practices in almost all the parameters studied. This technique was found to be the most effective treatment against all prevailing weeds and obtained the highest grain yield of wheat under climatic conditions of Dera Ismail Khan.

scholarly journals Coffee (Coffea arabica L,var. Castillo) seedling growth in Nariño, Colombia

2021 ◽  
Vol 38 (1) ◽  
pp. 62-74
Author(s):  
José Álvaro Castillo ◽  
Danita Andrade
Keyword(s):  
Growth Rate ◽  
Leaf Area ◽  
Seedling Growth ◽  
Block Design ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Area Index ◽  
Environmental Variations ◽  
La Florida ◽  
Net Assimilation

Coffee is one of the most socioeconomically important crops worldwide. Currently, environmental variations due to climate change are affecting coffee development and growth. Therefore, it is important to evaluate areas that offer a different environment during seedling stage since it is fundamental for successful cultivation. Four municipalities located at different altitudes in the Department of Nariño were selected: La Florida (1879 m a.s.l.), Sandoná (1924 m a.s.l.), Consacá (2001 m a.s.l.), and La Unión (1417 m a.s.l.). The experiment was conducted as a randomized complete block design. Growth variables were measured for five months, including total height-TH, number of leaves-NL, total leaf area-LA, fresh weight-FW, and dry weight-W. The following indices were calculated from the variables recorded: relative growth rate-RGR, leaf area index-LAI, net assimilation rate-NAR, crop growth rate-CGR, leaf area duration-LAD, and leaf area ratio-LAR. The data related to TH, NL, W, and LA recorded during the last evaluation (120 days after being transplanted) showed differences between locations; the maximum values in TH, W and LA were recorded in La Union, while higher averages in NL were obtained in Sandoná. The index values for CGR, LAI, LAR, RGR, and LAD were higher in La Unión, while NAR was higher in La Florida. The results lead to conclude that there are differences in coffee seedling growth depending on the climatic conditions. Accordingly, the highest growth was observed in areas at lower altitudes; therefore, these are recommended for seedling establishment given the higher growth rate, especially that of leaves.

Growth analysis in groundnut (Arachis hypogea L.) as influenced by Foliar nutrition

2017 ◽  
Author(s):  
H.M. Vinod Kumar ◽  
S. R. Salakinkop
Keyword(s):  
Leaf Area ◽  
Agricultural Research ◽  
Block Design ◽  
Foliar Spray ◽  
Research Station ◽  
Foliar Nutrition ◽  
Area Index ◽  
Arachis Hypogea ◽  
Net Assimilation ◽  
Major Nutrients

A field experiment was conducted during kharif 2013 to Study “Foliar nutrition in groundnut (Arachis hypogea L.)’’at Main Agricultural Research Station, Dharwad under rainfed situation. The experiment was laid out in a randomized complete block Design (RCBD) with three replications and ten foliar treatments of major nutrients. The growth attributes such as plant height (23.94 cm), number of branches (7.82 plant-1), chlorophyll content (43.58), leaf area (8.90 dm2 plant-1), leaf area index (2.97), leaf area duration (40.69 days), total dry matter production (40.22 g plant-1), net assimilation rate (0.136 g dm-2day-1) and crop growth rate (0.124g dm-2 day-1) were higher in foliar spray of 2.0% urea + DAP + MOP combination (T8). Similarly, pod yield (3746 kg ha-1), kernel yield (2905 kg ha-1), haulm yield (4253 kg ha-1) and harvest index (0.36) were higher in foliar spray of 2.0% urea + DAP + MOP combinationat 45 DAS followed by foliar spray of 19:19:19 N:P2O5:K2O compared to control (No spray).

scholarly journals Growth and yield of wheat at different dates of sowing under chrland ecosystem of Bangladesh

2017 ◽  
Vol 14 (2) ◽  
pp. 147-154 ◽  
Author(s):  
MM Kamrozzaman ◽  
MAH Khan ◽  
S Ahmed ◽  
N Sultana
Keyword(s):  
Growth Rate ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Dry Matter ◽  
Block Design ◽  
Grain Filling ◽  
Crop Growth ◽  
Growth And Yield ◽  
Area Index ◽  
Crop Growth Rate

An experiment was conducted at Sadipur charland under Farming System Research and Development Site, Hatgobindapur, Faridpur, during rabi season of 2012-13 and 2013-14 to study the growth and yield performance of cv. BARI Gom-24 as affected by different dates of sowing under Agro-ecological Zone-12 (AEZ-12) of Bangladesh. The experiment was laid out in randomized complete block design with six replications, comprising five different dates of sowing viz. November 5, November 15, November 25, December 5 and December 15. Results reveal that the tallest plant, leaf area index, total dry matter, and crop growth rate were observed in November 25 sown crop and leaf area index, total dry matter and crop growth rate were higher at booting, grain filling, and tillering stages of the crop. Maximum effective tillers hill-1 (3.49), spikes m-2, (311), number of grains spike-1 (42.20) and 1000-grain weight (52.10 g) were produced by November 25 sown crop exhibited the highest grain (4.30 t ha-1) and straw yield (4.94 t ha-1) as well as harvest index (46.88%) of the crop. Lowest performance was observed both in early (November 5) and late sown crop (December 15). The overall results indicated that November 25 sown crop showed better performance in respect of growth and yield of wheat under charland ecosystem of Bangladesh.J. Bangladesh Agril. Univ. 14(2): 147-154, December 2016

scholarly journals Growth and Yield of Shallot (Allium cepa L. Aggregatum group) with Application of Beneficial Microorganisms

2019 ◽  
Vol 3 (2) ◽  
pp. 66
Author(s):  
Taufiq Hidayat ◽  
Prapto Yudono ◽  
Endang Sulistyaningsih ◽  
Arif Wibowo
Keyword(s):  
Bacillus Thuringiensis ◽  
Leaf Area ◽  
Allium Cepa ◽  
Mycorrhizal Fungi ◽  
Block Design ◽  
Growth And Yield ◽  
Area Index ◽  
Beneficial Microorganisms ◽  
Trichoderma Sp ◽  
Allium Cepa L

Shallot (Allium cepa L. Aggregatum group) is one of the most widely utilized vegetables by Indonesian people. Some technologies have been adapted to improved shallot productivity. One of those are the application of beneficial microorganisms. We applied mycorrhizal fungi, Trichoderma sp., and Bacillus thuringiensis as well as the combination among these microorganisms were applied in Shallots cultivation and were investigated to improve the growth and development of shallot. A field experiment was arranged in a Randomized Complete Block Design with two treatment factors. The first factor consisted of two shallot cultivars, namely Biru Lancor and Crok Kuning; whilst the second factor consisted of six beneficial microorganism treatments, i.e. control, mycorrhizae, Trichoderma sp., Bacillus thuringiensis, the combination of mycorrhizae and Trichoderma sp., and the combination of those three microorganisms. The observation was conducted on infection percentage of mycorrhizae, total population of Trichoderma sp., leaf area, leaf area index, net assimilation rate, crop growth rate, harvest index, and plant yield. The data obtained were subjected to analysis of variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT) at 5% significance level. The results showed the leaf area of shallot was improved as affected by the application of mycorrhizal fungi. The effectiveness and implication of mycorrhizal fungi on shallot growth would decrease if the application of was combined with other microorganisms. However, the application of beneficial microorganisms had not been able to increase component yield and yield of Biru Lancor and Crok Kuning, indicated by bulb weight, number of bulb, bulb diameter, number of bulb per cluster, and bulb yield per hectare.

scholarly journals Impact of Integrated Weed Management on Bulb Yield of Onion

2020 ◽  
Vol 23 (1) ◽  
pp. 83-89
Author(s):  
MR Islam ◽  
M Moniruzzaman ◽  
AJM Obaidullah ◽  
AHF Fahim
Keyword(s):  
Weed Management ◽  
Agricultural Research ◽  
Block Design ◽  
Integrated Weed Management ◽  
Research Centre ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Hand Weeding ◽  
Benefit Cost ◽  
Bulb Yield

The experiment was conducted at Regional Spices Research Centre, Bangladesh Agricultural Research Institute, Magura, Bangladesh during 2016-2017 and 2017- 2018 to optimize weed management practice for onion bulb production through Integrated Weed Management (IWM). The experiment was laid out in a Randomized Complete Block Design with three replications. Two different herbicides (Oxadiazon and Pendimethalin) with different doses in combination with hand weeding (HW) were used as treatments. The total number of treatments were 12 viz. [email protected] l/ha, [email protected] l/ha, T3= [email protected] l/ha, T4= [email protected] l/ha + one HW at 45 DAT (Days After Transplanting), T5= [email protected] l/ha + one HW at 45 DAT,T6= [email protected] l/ha + one HW at 45 DAT, [email protected] l/ha, [email protected] l/ha, T9= [email protected] l/ha + HW at 45 DAT, T10= [email protected] l/ha+ HW at 45 DAT, T11= Weed free and T12 = Weedy check (control). The onion var. BARI Piaz-1 was used as the test crop. The highest bulb yield (7.63 tha-1 in 2016 & 9.56 t ha-1in 2017) and benefit cost ratio (2.14 in 2016 and 2.46 in 2017) were obtained from T6= [email protected] l/ha + one hand weeding at 45 DAT while the lowest bulb yield (4.22 t ha-1in 2016 and 6.28 t ha-1in 2017) was obtained from T12 = Weedy check (control), while lowest benefit cost ratio (1.33 in 2016 and 1.74 in 2017) from treatment T11 =Weed free. It was concluded that [email protected] l/ha with one hand weeding at 45 days after transplanting performed better for controlling weed and maximizing bulb yield of onion. Bangladesh Agron. J. 2020, 23(1): 83-89

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