Exploring seed treatment and foliar application of fungicides on management of Pea diseases

2021 ◽  
Vol 29 (3) ◽  
pp. 226-230
Author(s):  
Sanjay Kharte ◽  
Pramod Kumar Gupta ◽  
Yogita Gharde
2019 ◽  
Vol 11 (18) ◽  
pp. 230
Author(s):  
Walquíria F. Teixeira ◽  
Evandro B. Fagan ◽  
Luís H. Soares ◽  
Klaus Reichardt ◽  
Leidyanne G. Silva ◽  
...  

Due to the importance of soybeans worldwide, there is a constant search for products or management systems that aim to increase the productivity of this crop. In this sense, some products that have amino acids in their composition have been used, however, there is still a lack of studies that aim to show the isolated effect of amino acids on growth parameters. Therefore, the present study aimed to evaluate the effect of the application of amino acids in the treatment of seeds and of the leaf in the soybean crop. Experiments were carried out in a greenhouse and in the field with the application of glutamate, phenylalanine, cysteine, glycine as a seed treatment (ST) and also as foliar application (FA) at the V4 growth stage. The dry mass accumulation of root, stem, leaves, total and yield of a soybean crop were evaluated. In addition, leaf element concentration in leaves was also evaluated. The use of phenylalanine in ST promoted the best results on stem mass, leaves, pods and total dry mass, with an increase of up to 152%, as compared to control. This same treatment led to higher productivity, with a 46% increase in relation to the control. In relation to foliar concentration of elements, the most effective application is the one that is carried out in both modes of application (ST and FA), mainly with glutamate and glycine. Therefore, the application of amino acids, especially in seed treatment promotes the greater accumulation of dry mass and productivity in soybean plants.


2021 ◽  
Vol 74 (3) ◽  
pp. 9667-9674
Author(s):  
Luciano Moro ◽  
Maik Fernando Franz ◽  
Martios Ecco ◽  
Milciades Ariel Melgarejo Arrúa ◽  
Marlon Akiyama Ribas

Nitrogen is the element most demanded by the soybean crop, and the biological fixation of atmospheric nitrogen is the main means to supply it. In contrast, micronutrients and chemical treatments applied on seeds together with the inoculant can alter the phenomenon of biological fixation of atmospheric nitrogen. This work aimed to evaluate the effect of chemical products, micronutrients, and nitrogen fertilization on the nodulation, development, and yield of soybean. The experiment was developed in a field and a greenhouse in the municipality of Toledo, Brazil. A randomized block with four repetitions was used as an experimental design. This design had eight treatments, namely: T1 - Control (seeds treated with insecticide); T2 - Seeds treated with insecticides and inoculated with Bradyrhizobium; T3 - Untreated seeds inoculated with Bradyrhizobium; T4  Seeds treated with insecticides and cobalt-molybdenum (CoMo), inoculated with Bradyrhizobium; T5 - Seeds with CoMo inoculated with Bradyrhizobium; T6 - Seeds treated with insecticides, inoculated with Bradyrhizobium and with foliar application of CoMo; T7 - Seeds treated with insecticides, inoculated with Bradyrhizobium and with the application of nitrogen in cover; T8 - Seeds treated with nitrogen by broadcast. No significant differences were observed between treatments on the nodules numbers, stem diameter, plant height, root length, the mass of 1000 grains, and yield. The application of nitrogen at the R2 stage (a plant with an open flower in one of the two uppermost nodes of the main stem with a fully developed leaf) and in association with the inoculant + CoMo without seed treatment provided a greater number of nodes, pods, and grains per plant.


2017 ◽  
Vol 32 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Farag Mahmoud ◽  
Mohamed Osman ◽  
Kariman Mahmoud

Aphids are the most important pests on wheat in Egypt and worldwide. Field trials were conducted to assess the efficacy of the neonicotinoid insecticides imidacloprid (Nufidor 60% FS; at the doses of 2.1, 1.05 and 0.525 g a.i./kg of seeds) and thiamethoxam (Cruiser 70% WS; at the rates of 14.4, 7.2 and 3.6 g a.i./kg of seeds) as seed treatments, and thiamethoxam (Actara 25% WG; at the rates of 0.1, 0.05 and 0.025 g a.i./l) as foliar application, against three wheat aphids: bird cherry oat aphid, Rhopalosiphum padi (L.), greenbug, Schizaphis graminum (Rondani), and corn leaf aphid, Rhopalosiphum maidis (Fitch). Their effects on the aphids? natural enemies: lacewings, Chrysoperla carnea Stephens, ladybird beetles, Coccinella spp., and syrphid flies Syrphus spp. were assessed as well. The trials were conducted on the farm of the Faculty of Agriculture, Suez Canal University, Ismailia Governorate, during 2013/14 and 2014/15 seasons. Our results showed significant differences between the tested insecticides at all concentrations and clearly indicated that the recommended doses of all insecticides were more efficient against aphids on wheat plants than half- and quarter-doses. Also, the data revealed significant differences between the two seed treatments at all doses before and after foliar application, as compared to the control at all time intervals of inspection regarding the mean number of aphids on wheat plants, from the 3rd until 13th week after sowing, except in the 8th week after seed treatment before foliar application. The results clearly indicated that the weekly reduction of infestation and the general efficacy was higher at the recommended doses of Nufidor, Cruiser and Actara than the half and quarter doses in both seasons. Also, reduction in infestation decreased over the following weeks until the 8th week, when Actara insecticide was sprayed. Data revealed that there were no significant differences between treatments and control in the mean number of Chrysoperla carnea and Syrphus spp., while a significant difference in the mean number of coccinellids was observed on wheat plants treated with imidacloprid seed treatment before foliar application 6 and 7 weeks after sowing, and also after foliar application with thiamethoxam 9, 10, 11, 12 and 13 weeks after sowing. Regarding thiamethoxam seed treatment, significant differences were revealed in the ladybird population on wheat plants 3, 4, 7 and 8 weeks before foliar application, and only in the 10th week after spraying with thiamethoxam.


Author(s):  
V. А. Fedotov ◽  
N. V. Podlesnykh ◽  
А. L. Lukin ◽  
L. М. Vlasova

In the conditions of the Central Russian Black Earth Region, it is quite possible to cultivate hard winter wheat for the needs of the cereal and macaroni industry. Winter-hardy varieties Zolotko, Donchanka and etc. are suitable. Presowing cultivation with Albit, Siberian fertility, Agat 25K, Micromax, etc. affects significantly on their yield. The combination of presowing seed treatment with foliar application of vegetative plants with the same and other products (Afbif, Reksalin, ABC and etc.) turned out to be particularly effective.  Synergism has been revealed in the combination of seed treatment with Albit, Rexolin ABC and Vitazim with spraying of plants with Albit solution, Abibif, Siberian Fertility, Fertigrain Foliar and other products. Winter durum wheat have not yet allowed to cultivation in Central Chernozem Region although, as our researches have shown many varieties (Zolotko, Donchanka, Amazonka, Kurant, Alyy parus, Aksinit, Terra ant other) can be suitable for cultivation in Voronezh region forest-steppe [1, 3, 4, 8], they are 10…15 centners per hectare more yield than spring durum wheat cultivated here. The deficit of durum wheat cereal in Central Chernozem Region, which is necessary for pasta industry is very large, it can be avoided by introducing and improving the cultivation technology of winter varieties of this crop. Staff members of the crop production, fodder production and agrotechnologies department of Voronezh SAU have identified (since 1996) and substantiated the cultivation possibility of domestic relatively winter resistance winter durum wheat in Central Chernozem Region (Amazonka, Donchanka, Zolotko, Kurant and other).


Author(s):  
Santosh Onte ◽  
Nitin N Gudadhe ◽  
Nilima Karmakar ◽  
Raju G. Ladumor

A field experiment was conducted during rabi season of 2015-2016 at Navsari Agricultural University, Navsari to study the impact of cobalt application methods on chickpea yield, nutrient content and soil status. Four cobalt application methods with three levels of each were evaluated with one absolute control and one with seed priming of water were evaluated with randomized block design with three replications. Least level of seed treatment, soil application and foliar application of cobalt gave highest chickpea seed yield and decreased there after. As cobalt levels increased, NPK content and uptake are decreased linearly in all the methods except seed priming method, however cobalt content and uptake increased linearly by seed treatment and foliar application, on the contrary it decreased linearly by seed priming and soil application of cobalt. Soil application of cobalt at 50 g ha-1 recorded highest chickpea seed yield, residual NPK and Co and which can be useful for succeeding crop and this can be recommended from the cobalt nutrition point of view in plants and animals followed by seed priming at 1 ppm.


2019 ◽  
Vol 112 (6) ◽  
pp. 2719-2730 ◽  
Author(s):  
Phillip J Haar ◽  
G David Buntin ◽  
Alana Jacobson ◽  
Adrian Pekarcik ◽  
M O Way ◽  
...  

Abstract The invasive sugarcane aphid, Melanaphis sacchari (Zehntner), is a devastating new pest of grain sorghum. Studies were conducted utilizing an integrated approach of four management tactics: planting date, insecticidal seed treatment, a foliar-applied insecticide, and plant resistance. Experiments were conducted in 2016 and 2017 at Griffin, Tifton, and Plains Georgia, and in 2016 in Texas, Alabama, and Oklahoma, United States. Early planting was effective in reducing damage and increasing yields when compared to the late planting. Use of a resistant variety reduced cumulative aphid-days, plant injury and usually prevented significant yield loss. Foliar application of flupyradifurone when aphids reached an economic threshold, was an effective management tactic preventing aphid injury and yield loss. Use of clothianidin seed treatment also reduced aphid injury and yield loss of the susceptible hybrid but generally did not prevent injury and yield loss of the resistant hybrid. We conclude that an earlier planting date coupled with a resistant variety and judicious use of an efficacious foliar-applied insecticide can effectively manage sugarcane aphid on grain sorghum. An insecticide seed treatment also may be useful to reduce the risk of sugarcane aphid damage to seedlings of susceptible hybrids.


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