Impact of Plant Spacing and Weed Control Treatments on Yield, Quality of Soybean (Glycine Max L.) and Associated Weeds Characters under Middle Egypt Conditions

Morsy, Ayman T A; Tantawy, M. M.

doi:10.21608/ajas.2018.8086

Cited by 2 publications

(5 citation statements)

References 13 publications

(25 reference statements)

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“…Our results indicate that all chemical herbicides at pre and/or post-emergence were effective compared to the untreated check. The reduction in dry weight of broad-leaved and grassy weeds may be ascribed to the inhibitory influence of herbicidal treatments on the growth stages and development of associated weeds [34,53]. We showed that the imazethapyr (T 4 ) and/or bentazon + clethodim (T 3 ) with I 1 treatment gave the highest percent reduction in dry weight of annual weeds at 60 and 80 days after sowing (DAS).…”

Section: Discussionmentioning

confidence: 94%

“…In contrast, using I 2 resulted in the lowest values. This result may be attributed to less irrigation water, the rate of soil water absorption by plants becomes less than the rate of evapotranspiration, consequently leading to reduced photosynthesis, decreased seed filling, and decreased seed yield may occur [34]. The application of 100% or 90% of water requirement provides soybean plants with sufficient irrigation levels with necessary nutrients for the processes of cell division and enlargement as well as for meristematic activity [17].…”

Section: Discussionmentioning

confidence: 99%

“…Herbicides can be defined as chemicals used in crop protection to control weedy plants and/or interrupt their normal growth, an economical and effective way to manage weeds [33]. Weed management is essential for agricultural production and could play an important role in achieving future food production goals [34] associated with the improvement in plant growth characteristics [35]. El-Metwally et al [36] demonstrated that two hand-hoeing or herbicide applications of bentazone + clethodim combined with Giza 111 cultivars effectively improved the growth and productivity of soybean.…”

Section: Introductionmentioning

confidence: 99%

“…Irrigation scheduling includes knowing the most appropriate amount of required water for irrigation in a timely manner for cultivated plants. The cultivated area with soybeans is limited due to the limited amount of irrigation water [34]. The main objective of this study was to evaluate the effects of four promising herbicides in mitigating the harmful effects of weeds under three irrigation levels and study the growth characters of weed, physiological traits, and productivity of soybean to obtain a high seed yield with saving irrigation water.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Irrigation Levels and Weed Control Treatments on Annual Weeds, Physiological Traits and Productivity of Soybean under Clay Soil Conditions

et al. 2022

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Water scarcity and weed infestation are major challenges to soybean production. Therefore, two field experiments were conducted in a strip plot design including three replicates in the 2019 and 2020 summer seasons at Sakha Agricultural Research Station, Agricultural Research Centre, Egypt, to investigate the effect of three irrigation levels (I0 (100%), I1 (90%), and I2 (80%)), and six weed control treatments of pendimethalin (T1), oxyfluorfen (T2), bentazon + clethodim (T3), imazethapyr (T4), hand-hoeing twice (T5), and untreated check (T6) on annual weeds, physiological traits, water relations, and yield and its components of soybean cv Giza 111. Results indicated that intermediate irrigation levels lead to the highest yield and economic return, while the herbicide program that resulted in the greatest weed control gave the highest yield. The rate of weed infestation in field experiments was 19.7 and 21.8 t ha−1 dry weights, which decreased soybean yield by 56.9 and 57.1%, compared to treatment (T4). The interactions between 100 irrigation level (I0) and imazethapyr (T4), bentazon + clethodim (T3), and hand-hoeing twice (T5) gave the highest significant values of the most studied characters. Furthermore, under 90% irrigation, all weed control treatments give the best control of weeds and the highest values of the economic criteria.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of Irrigation Levels and Weed Control Treatments on Annual Weeds, Physiological Traits and Productivity of Soybean under Clay Soil Conditions

et al. 2022

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“…herbicides, such as clethodim, cycloxydim, fenoxaprop-p-ethyl, fluazifop-p-butyl, quizalofop-p-ethyl, propaquizafop, imazamox, oxasulfuron, and tifensulfuron-methyl, have been registered for weed control in the soybean [22]. Weeds can be most effectively managed in soybeans with a well-planned program that includes a detailed analysis of the field situation [23]. The aim of this study was to examine the efficacy of different herbicide combinations in soybean and their phytotoxicity on a crop, and also to assess the economic feasibility of chemical weed control.…”

mentioning

confidence: 99%

Economic Feasibility of Chemical Weed Control in Soybean Production in Serbia

et al. 2020

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The aim of this study was to investigate the efficacy and phytotoxicity of herbicides in combinations and to determine their economic feasibility in the soybean crop. The trials were placed at two locations, Pobeda and Budisava (Serbia), during 2016 and 2018, organized in a randomized block design with four replicates of all herbicide combinations (metribuzin + S-metolachlor; imazamox + oxasulfuron + typhenesulfuron-methyl; metribuzin + S-metolachlor + imazamox + oxasulfuron + typhenesulfuron-methyl; and bentazon + imazamox + typhenesulfuron-methyl). At the first location, 16 weed species were determined, while in the second location, 14 were determined. The highest reduction in the number of weeds was achieved at the first location, using a combination of herbicides metribuzin + S-metolachlor + imazamox + oxasulfuron + typhenesulfuron-methyl with a total efficacy that ranged from 96.98% to 97.40%. Only on the second location bentazone + imazamox + tifensulfuron-methyl showed passable phytotoxicity on soybean, during both years. Based on the established economic justification, in the combinations of metribuzin + S-metolachlor + imazamox + oxasulfuron + typhenesulfuron-methyl, yield was increased for 2350 kg/ha or 1.91 times more, according to the untreated variant at first location. The economic injury level at the most effective combination of herbicides was 52.70 weeds/m 2 .Soybean (Glycine max (L.) Merr.) is a wonder crop of the twentieth-century and an important source of protein and vegetable oil for human and animal consumption. Today, the largest soybean producers of the world are the USA, Brazil, and Argentina [6,7]. The soybean contains approximately 40%-45% protein and 18%-22% oil, and it is a rich source of vitamins and minerals, with a favourable composition of the amino acids. For this reason, soybean is recommended for use in human consumption as a part of cholesterol-free diets [8]. In addition to this, soybean can improve soil fertility by fixing atmospheric nitrogen from the air [9], and its oil is being used for biodiesel [10]. In the semiarid and subhumid regions of the world, water stress is a major factor limiting soybean production [11]. In our country, climate has a great impact on plant growth and development, so light, heat, air, and water often represent limiting factors [12]. Economic feasibility and selection of most effective measures in weed management, during the crop season, can be the key to maximizing yields. Serbia has favorable conditions for growing soybeans though proper cultivation technology, and selection of variety is a prerequisite for economically viable soybean production. In 2016, average soybean yields in Serbia were at the level of world yields average, while production amounted to 576,446.00 t [13].Heavy weed infestations in soybeans highly interfere with the timeliness and efficiency of harvests, and if not controlled, cause severe losses in crops [14]. In soybean production, almost 37% of attainable production is endangered by weed competition compared to pathoge...

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Impact of Plant Spacing and Weed Control Treatments on Yield, Quality of Soybean (Glycine Max L.) and Associated Weeds Characters under Middle Egypt Conditions

Cited by 2 publications

References 13 publications

Impact of Irrigation Levels and Weed Control Treatments on Annual Weeds, Physiological Traits and Productivity of Soybean under Clay Soil Conditions

Impact of Irrigation Levels and Weed Control Treatments on Annual Weeds, Physiological Traits and Productivity of Soybean under Clay Soil Conditions

Economic Feasibility of Chemical Weed Control in Soybean Production in Serbia

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