scholarly journals Allelopathy Weed management and yield improvement in mungbean through allelopathic action of sunflower and bermuda grass (a weed) extract in conjunction with irrigation frequencies

2021 ◽  
Vol 27 (3) ◽  
pp. 307-320
Author(s):  
Muhammad Naeem Korejo ◽  
Muhammad Nawaz Kandhro ◽  
Aijaz Ahmed Soomro ◽  
Niaz Ahmed Wahocho
Keyword(s):  
Seed Yield ◽  
Plant Extracts ◽  
Crop Production ◽  
Combined Treatment ◽  
Integrated Treatment ◽  
Bermuda Grass ◽  
Allelopathic Potential ◽  
Weed Density ◽  
Hand Weeding ◽  
Different Levels

Allelopathy is the effect of one plant species by reducing the germination and growth of the neighbouring plants of another species through releasing chemical compounds. It has been reported by many researchers that weeds are major hazard in reducing crop yield but it can be managed effectively through phytotoxic properties of plants. A field study was conducted at Students Experimental Farm, Agronomy Department, Crop Production Faculty, Sindh Agriculture University Tandojam, Pakistan during spring 2019 and repeated during 2020 to validate the previous results. The research conducted to evaluate the allelopathic potential of sunflower and Bermuda grass extracts under various irrigation levels on weeds density and yield of mungbean cultivar ‘AEM-96’. Split plot design having four replications was managed. The experiment consisted of weed control practices: Weedy check, various levels of sunflower and bermuda grass extracts as sole and in combination with each other, different levels of herbicides as alone and in integration with allelopathic plant extracts as well as hand weeding under three irrigation frequencies (2, 3 and 4 watering applications). The analysis variance of results showed that various levels of sunflower and bermuda grass extracts as sole and in combination with each other, different levels of herbicides as alone and in integration with allelopathic plant extracts as well as hand weeding caused significant suppression of weeds and increased in seed yield as compared to weedy check. The combined treatment Atlantis: 0.1 Ltr ha-1 + Puma Super: 0.156 Ltr ha-1 + Sunflower extract: 15 L ha-1 resulted in less weed density (51.6 m-2) and produced maximum seed yield of 2404.4 kgs ha-1. Bermuda grass extract: 15 Ltr ha-1 integration with low dose of herbicides Atlantis: 0.1 Ltr ha-1+ Puma Super: 0.156 Ltr ha-1 showed weed density of 61.3 m-2 resulted seed yield of 2282.1 kgs ha-1. The application of herbicides treatment Atlantis: 0.2 Ltr ha-1 + Puma Super: 0.312 Ltr ha-1 suppressed weed density of 70.9 m-2 and produced seed yield of 2162.5 kgs ha-1. It is noted that Hand weeding: 30 days after sowing showed weed density of 76.1 m-2 and seed yield 2042.5 kgs ha-1. The combined allelopathic plant applications of Sunflower +Bermuda grass extract each: 15 Ltr ha-1 reduced weed density 80.7 m-2 and obtained seed yield of 1923.2 kgs ha-1. Sole application of sunflower extract: 30 Ltr ha-1 resulted weed density 91.0 m-2 and recorded seed yield of 1804.2 kgs ha-1. Alone allelopathy application of Bermuda grass extract: 30 Ltr ha-1 noticed weed density 103.3 m-2 and produced seed yield of 1684.8 kgs ha-1. The highest weed density 140.9 m-2 and lowest seed yield 1343.1 kgs ha-1 noticed in weedy check treatment where no any application applied for weed reduction. According to irrigation frequencies the 4 watering applications resulted less weed density 82.2 m-2 and obtained maximum seed yield 1996.3 kgs ha-1 followed by 3 watering applications noted weed density 84.5 m-2 and achieved seed yield 1955.5 kgs ha-1. The maximum weed density 86.7 m-2 and lowest seed yield recorded in 2 watering application. The analysis of variance of pooled data revealed that Atlantis: 0.1 Ltr ha-1 + Puma Super: 0.156 Ltr ha-1 + Sunflower extract: 15 Ltr ha-1 integrated treatment under 4 watering applications (15, 30, 45 and 60 DAS) caused significant impact on weed inhabitation and yield enrichment

scholarly journals Allelopathic Allelopathic impact of sorghum on weed management, yield and quality of maize under different seed rates

2021 ◽  
Vol 27 (4) ◽  
pp. 513-526
Author(s):  
Tariq Ahmed Keerio ◽  
Muhammad Nawaz Kandhro ◽  
Ahmed Naqi Shah ◽  
Muhammad Ibrahim Keerio ◽  
Ghulam Murtaza Jamro
Keyword(s):  
Weed Control ◽  
Plant Extracts ◽  
Weed Management ◽  
Growth And Yield ◽  
Mature Plant ◽  
Allelopathic Potential ◽  
Seed Rate ◽  
Weed Density ◽  
Hand Weeding ◽  
Kernel Yield

A field study was carried out to estimate the allelopathic potential of sorghum immature and mature plant extracts under various seed rates on weeds density and yield of maize cultivar Dadu Maize-I. The experiment contained of different weed control practices i.e., control (No weeding), various levels of sorghum immature and mature plant extracts, herbicides and hand weeding under various seed rates (20, 25, 30 & 35 kg per ha). The analysis of variance showed that various weed control practices demonstrated substantial decrease in weeds and caused increase in kernel yield over control. The application of sorghum immature extract @ 15 L per ha in combination with herbicide (Mesotrione Atrazine) @ 1.0 L per ha decreased effectively weed density (m-2) and dry biomass (g m-2) and resultantly produced superior growth and yield traits particularly kernel yield (t per ha) of maize. Sorghum mature plant extract @ 15 L per ha in integration with herbicide (Mesotrione Atrazine) @ 1.0 L per ha ranked 2nd in effectiveness of controlling weeds as well as increasing maize kernel yield (t per ha). As much as effect of seed rates is concerned, the least weed density (m-2) and greatest kernel yield (t per ha) were noticed in seed rate 35 kg per ha but optimal kernel yield (t per ha) was record in seed rate 30 kg per ha. Hence, the results suggested that combination of plant extracts and herbicide at reduced doses controlled weeds efficiently and optimum enhancement in kernel yield of maize was noticed at seed rate 30 kg per ha.

Allelopathic potential of marshpepper residues for weed management and yield of transplant Aman rice

2020 ◽  
Vol 30 (4) ◽  
pp. 379-386
Author(s):  
SK Pramanik ◽  
MR Uddin ◽  
UK Sarker ◽  
D Sarkar ◽  
F Ahmed ◽  
...  
Keyword(s):  
Grain Yield ◽  
Weed Management ◽  
Crop Production ◽  
Crop Residue ◽  
Crop Residues ◽  
Block Design ◽  
Allelopathic Potential ◽  
Weed Growth ◽  
3.0 T ◽  
Hand Weeding

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from June to December 2016 to evaluate the effect of marshpepper (Polygonum hydropiper L.)  crop residues on weed management and crop performance of transplant aman rice. The experiment consisted of three cultivars viz.  BR11, BRRI dhan33 and BRRI dhan49 and five marshpepper crop residues treatment such as 0, 1.0, 2.0, 3.0 ton ha-1 and hand weeding. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Five weed species belonging to four families infested the experimental plots. Weed population and weed dry weight were significantly affected by cultivar and crop residues treatment. The highest percent inhibition of all the studied weed was found by hand weeding. The second highest percent weed inhibition was found with the application of marshpepper residues at 3.0 t ha-1 which was 63.43, 63.43, 52.85, 52.40 and 59.12 percent for sabuj nakful (Cyperus difformis), chesra (Scirpus juncoides), shama (Echinochloa crusgalli) panikachu (Monochoria vaginalis) and panishapla (Nymphaea nouchali ) respectively. The maximum weed growth was noticed with the cultivar BRRI dhan33 variety and the minimum was found in the cultivar BRRI dhan49. The grain yield as well as the yield contributing characters produced by BRRI dhan49 was the highest among the studied varieties. The highest reduction of grain yield was obtained in no crop residue treatment. The highest number of effective tillers hill-1, number of grains panicle-1, 1000-grain weight, grain and straw yields were observed in marshpepper residues in hand weeding followed by 3.0 t ha-1 marshpepper crop residue. BRRI dhan49 produced the highest grain and straw yields under hand weeding followed by marshpepper residues 3.0 t ha-1 treatment. Results of this study indicate that marshpepper residues showed potentiality to inhibit weed growth and it has a significant effect on the yield of transplant aman rice. Therefore, marshpepper residues might be used as an alternative way for weed management effective and sustainable crop production. Progressive Agriculture 30 (4): 379-386, 2019

scholarly journals Effect of tillage system on yield and weed populations of soybean ( Glycin Max L.)

2016 ◽  
Vol 88 (1) ◽  
pp. 377-384 ◽  
Author(s):  
Seyed Z. Hosseini ◽  
Saeed Firouzi ◽  
Hashem Aminpanah ◽  
Hamid R. Sadeghnejhad
Keyword(s):  
Seed Yield ◽  
Weed Management ◽  
Seed Number ◽  
Herbicide Application ◽  
Weed Density ◽  
Management Regime ◽  
Row Crop ◽  
No Till ◽  
Tillage System ◽  
Hand Weeding

Field experiment was conducted at Agricultural and Natural Resources Research Center of Golestan Province, Iran, to determine the effects of tillage system and weed management regime on yield and weed populations in soybean ( Glycin max L.). The experimental design was a split plot where the whole plot portion was a randomized complete block with three replicates. Main plots were tillage system: 1- No-till row crop seeding, 2- No-till seed drilling, 3- Tillage with disc harrow and drill planting, 4- Tillage with chisel packer and drill planting. The subplots were weed management regimes: 1-Weed control with herbicide application, 2- Hand weeding, 3- Herbicide application plus hand weeding, and 4- Non-weeding. Results indicated that the main effects of tillage system and weed management regime were significant for seed yield, pod number per plant, seed number per pod, weed density and biomass, while their interaction were significant only for weed density, weed biomass, and seed number per pod. The highest grain yields (3838 kg ha-1) were recorded for No-till row crop seeding. The highest seed yield (3877 kg ha-1) also was recorded for weed control with herbicide and hand weeding treatment, followed by hand weeding (3379 kg ha-1).

scholarly journals MINIMUM TILLAGE NON-PUDDLED TRANSPLANTED RICE (ORYZA SATIVA L.): WEED CONTROL AND ECONOMICS UNDER CONSERVATION AGRICULTURE PRACTICE IN BANGLADESH

2021 ◽  
Vol 5 (2) ◽  
pp. 47-55
Author(s):  
Mohammad Mobarak Hossain ◽  
Mahfuza Begum ◽  
Abul Hashem ◽  
Md. Moshiur Rahman ◽  
Richard W. Bell
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Crop Production ◽  
Oryza Sativa L ◽  
Conservation Agriculture ◽  
Conventional Tillage ◽  
Weed Density ◽  
Hand Weeding ◽  
Strip Tillage ◽  
Rice Residues

Crisis of agricultural laborers in South Asia’s rural zones is pushing to pursue a labor-saving conservation agriculture strategy for crop production and weed control. Non-puddled transplanting and mulching residues of the previous crop are being developed for rice-based cropping systems in Bangladesh to address this issue. Hence, the present study was undertaken to determine the effectiveness of strip tillage vs. conventional tillage combined with previous rice residues relative to herbicides and hand weeding on weed control and grain yield of winter rice during January-May in 2015 and 2016. Rice cv. BRRI dhan28 was transplanted with a combination of six treatments: puddled conventional tillage (CT)+3 hand weeding (HW) (Control); Preplant (PRE) herbicide (glyphosate)+non-puddled strip tillage (ST)+1HW; PRE+ST+pre-emergence (PE) herbicide (pendimethalin); PRE+ST+post-emergence (PO) herbicide (ethoxysulfuron-ethyl); PRE+ST+PE+PO; PRE+ST+weed-free (WF); and two levels of rice residues: no-residue (R0) vs. 50% standing residue (R50). The CT had done using a two-wheel tractor (2WT) by four ploughings and cross ploughings followed by levelling. A Versatile Multi-Crop Planter (VMP) was used for ST in a single pass operation. Over the two years, PRE+ST+PE+PO reduced weed density by 40% in the first year and 50% in the second year and weed biomass by 70% than CT+3HW in both years. Retention of 50% residue reduced weed density by 20% and biomass by 34%. The highest grain yield (12% higher than CT+3HW without residue) was obtained from PRE+ST+WF with 50% residue, while the highest BCR (47% higher over CT+3HW without residue) was obtained from PRE+ST+PE+PO with 50% residue.

Evaluation of different herbicides against weeds in mungbean (Vigna radiata L.)

2019 ◽  
Author(s):  
Lata Verma ◽  
H. S. Kushwaha
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Dry Weight ◽  
Yield Attributes ◽  
Weed Density ◽  
Net Returns ◽  
Weed Control Efficiency ◽  
Stover Yield ◽  
Hand Weeding ◽  
Clodinafop Propargyl

A field experiment was conducted during kharif season of 2016 at Mahatma Gandhi Chitrakoot Gramodaya Vishwavidyalaya, Chitrakoot, Satna (M.P.) to study the efficacy of different herbicides against weeds in mungbean. The weed density recorded at 30 and 60 DAS was significantly lower under pendimethalin 30 EC + imazethapyr 2 EC (Ready mix) 0.75 kg/ha as pre-emergence (PE) followed by pendimethalin PE. However, significantly lower weed dry weight and statistically superior weed control efficiency were noted in twice hand weeding at 20 DAS and 40 DAS and pendimethalin + imazethapyr (R.mix.) 0.75 kg/ha at same stages of crop (30 and 60 DAS). While, yield attributes viz. pods/plant (21.8) was significantly higher in plot treated with imazethapyr 10 SL @ 40g/ha applied at 20 DAS and statistically at par with imazamox 35 WG+ imazethapyr 35 WG 60g/ha applied at 20 DAS and clodinafop - propargyl 8% + aciflourfen - sodium 16.5% (WP) 187.5 kg/ha applied at 20 DAS. Application of clodinafop - propargyl 8% + aciflourfen - sodium 16.5% (WP) 187.5 kg/ha at 20 DAS produced significantly maximum seed yield (531 kg/ha) of mungbean closely followed by imazethapyr 10 SL @ 40g/ha at (528 kg/ha) and pendimethalin 30 EC + imazethapyr 2 EC (R.mix) 0.75 kg/ha (521 kg/ha). However, stover yield (2699 kg/ha), gross returns (`58464/ha) and net returns (`43163/ha) were obtained significantly superior under clodinafop - propargyl 8% + aciflourfen - sodium 16.5% (WP) 187.5 g/ha.

scholarly journals Improving the Management of Parthenium hysterophorus to Enhance Okra Production through the Application of Chemicals, Adjuvants and Plant Extract Blends in Pakistan

2021 ◽  
Vol 36 (1) ◽  
pp. 165
Author(s):  
Muhammad Adnan ◽  
Muhammad Sikander Hayyat ◽  
Qaisar Mumtaz ◽  
Muhammad Ehsan Safdar ◽  
Fazal Ur Rehman ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Weed Management ◽  
Crop Production ◽  
Cropping Systems ◽  
Integrated Approach ◽  
General Information ◽  
Parthenium Hysterophorus ◽  
Effective Control ◽  
Management Options ◽  
Allelopathic Potential

<p>Vegetables are consequently experiencing great yield losses due to weed infestation. Weed management is extremely important for sustainable crop production in all cropping systems. This review paper aimed to provide general information and alternative recommendations for the management of <em>Parthenium hysterophorus</em> weed by chemicals, adjuvants and plant extracts in okra. Different strategies have been used to control parthenium, but no single management solution is sufficient to handle parthenium; hence, different management options need to be combined. Only an integrated approach will achieve effective control over this weed. In areas where parthenium natural enemies are absent, chemical control is an important method of managing this weed. In the control of this plant, the use of chemical herbicides such as chlorimuron ethyl, glyphosate, atrazine, ametryn, bromoxynil and metsulfuron are considered to be efficient. Moreover, various plants have allelopathic potential and attempts have been made to use them in parthenium control. Three allelopathic grasses, namely, <em>Achyranthes aspera</em>, <em>Syzygium </em><em>cumini</em> and <em>Acacia nilotica</em> are able to minimize the plant growth and inhibit early seedling growth of exotic weed <em>P. hysterophorus</em>. The results recommend that the control of parthenium in okra and other summer vegetables using chemical herbicides with single and combination mode of action is still effective compared to the use of plant extracts. The use of herbicides by adding adjuvants has the potential to minimize the use of excessive herbicides.</p>

Effect of Sunflower Residues and Herbicide on Weed Suppression, Grain Yield and Economics of Transplanted Aman Rice

2020 ◽  
Vol 23 (1) ◽  
pp. 47-58
Author(s):  
SS Tanu ◽  
P Biswas ◽  
S Ahmed ◽  
SC Samanta
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Block Design ◽  
Weed Suppression ◽  
Cost Ratio ◽  
Gross Margin ◽  
Weed Density ◽  
Benefit Cost Ratio ◽  
Hand Weeding ◽  
Environmentally Sound

A field experiment was conducted at Agronomy Field Laboratory, Patuakhali Science and Technology University, Dumki, Patuakhali from July 2018 to November 2018 to evaluate the effect of sunflower residues and herbicides on the yield and economic performance of transplanted Aman rice. Weed control methods tested were T1 = weedy check (Unweeded control), T2 = Weed-free check by hand weeding twice, T3 = Pendimethalin, T4 = Pretilachlor, T5 = Butachlor, T6 = Pyrazosulfuron ethyl, T7 = Bensulfuron methyl + Acetachlor, T8 = Bispyriback sodium, T9 = 2,4-D amine, T10 = MCPA, T11 = Sunflower residues, T12 = Sunflower residues + 100% Pyrazosulfuron ethyl, T13 = Sunflower residues + 75% Pyrazosulfuron ethyl, T14 = Sunflower residues + 50% Pyrazosulfuron ethyl. The experiment was laid out in a randomized complete block design with fourteen treatments replicated thrice. Weedy check registered significantly the highest total weed density (354.67 m-2) and total weed dry matter (51.81 g-2) while weed-free treatment by hand weeding twice recorded significantly the lowest total weed density (6.67 m-2) and total weed dry matter 0.49 g-2) . Weedy check produced the highest weed index (34.24%) and hand weeding produced the lowest. Among different herbicides applied alone, butachlor had the lowest total weed density (15 m-2) and total weed dry matter (6.43 g-2) after hand weeding. Hand weeding recorded the highest grain yield (5.14 t ha-1) which was statistically similar to pendimethalin, pretilachlor, butachlor, bensulfuron methyl + acetachlor and sunflower residues + 100% pyrazosulfuron ethyl. Higher grain yield was attributed to a higher number of panicle m-2, number of filled grains panicle-1 and 1000-grain weight. The highest gross margin (22955 Tk. ha-1) and benefit-cost ratio (1.32) were obtained from butachlor. Integration of sunflower residues with pyrazosulfuron ethyl produced effective weed suppression and satisfactory yield comparable to butachlor. Although the integration is less profitable than butachlor the farmers can use this technology as a feasible and environmentally sound approach in transplanted Aman rice field. Bangladesh Agron. J. 2020, 23(1): 47-58

Effects of different levels of supplementation of a 50:50 mixture of molasses:crude glycerol on performance, Bermuda grass hay intake, and nutrient digestibility of beef cattle12

2015 ◽  
Vol 93 (5) ◽  
pp. 2428-2438 ◽  
Author(s):  
F. M. Ciriaco ◽  
D. D. Henry ◽  
V. R. G. Mercadante ◽  
T. Schulmeister ◽  
M. Ruiz-Moreno ◽  
...  
Keyword(s):  
Nutrient Digestibility ◽  
Bermuda Grass ◽  
Grass Hay ◽  
Different Levels

scholarly journals Comparative Study of the Effect of Different Weed Management Strategies on Disease Severity and Marketable Yield of Paprika (Capsicum Annuum L.) in the Smallholder Farming Sector of Zimbabwe

2008 ◽  
Vol 48 (1) ◽  
pp. 107-117 ◽  
Author(s):  
Maxwell Handiseni ◽  
Julia Sibiya ◽  
Vincent Ogunlela ◽  
Irene Koomen
Keyword(s):  
Comparative Study ◽  
Capsicum Annuum ◽  
Weed Management ◽  
Leaf Spot ◽  
Management Strategies ◽  
Smallholder Farming ◽  
Marketable Yield ◽  
Weed Density ◽  
Marketable Fruit ◽  
Hand Weeding

Comparative Study of the Effect of Different Weed Management Strategies on Disease Severity and Marketable Yield of Paprika (Capsicum AnnuumL.) in the Smallholder Farming Sector of ZimbabweOn-farm trials were conducted in the Chinyika Resettlement Area of Zimbabwe under dryland conditions to investigate the effects of different weed management methods on disease incidence, severity and paprika (Capsicum annuum) pod yield. The weed control treatments included hand weeding at 2 and 6 weeks after transplanting (WAT); ridge re-moulding at 3,6 and 9 WAT; application 4l/ha Lasso (alachlor) immediately after transplanting, and Ronstar (oxidiazinon) at 2l/ha tank mixed with Lasso at 2l/ha one day before transplanting. The herbicide-water solution was applied at the rate of 200l/ha using a knapsack sprayer. Major diseases identified were bacterial leaf spot (Xanthomonas campestrispv.vesicatoria), cercospora leaf spot (Cercospora unamunoi), grey leaf spot (Stemphylium solani) and powdery mildew (Leveillula taurica) in both seasons. For the 2000/2001 season hand weeding at 2 and 6 WAT and ridge re-moulding at 3, 6 and 9 WAT had the greatest reduction effect on the area under disease progress curve (AUDPC) and the highest marketable fruit yield. In the 2001/2002 season, both herbicide treatments had the same effect as hand weeding and ridge re-moulding on AUDPC and marketable fruit yield. The least weed density was obtained by ridge re-moulding at 3, 6, and 9 WAT in the 2000/2001 season. Weed density was statistically the same across all treatments except the check treatment in 2001/2002 season. Hand weeding operations were significantly (p < 0.05) effective and consequently gave the highest added profits mainly because of their effect on major weeds such asDatura stramonium.

Sign in / Sign up

Export Citation Format

Share Document