July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3289
Amal K. Abou El- Goud, Fahad R. Al- Masoodi, K. Elzopy, M. Yousry
{"title":"Performance of potato cultivars in an organic farming system using organic fertilizers, vermicompost and azolla","authors":"Amal K. Abou El- Goud, Fahad R. Al- Masoodi, K. Elzopy, M. Yousry","doi":"10.21475/ajcs.21.15.07.p3289","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3289","url":null,"abstract":"The challenges of food shortages and environmental pollution require the development of safe and effective alternatives to chemical fertilizers. Two field experiments were conducted during the summer season of 2019/2020 in two locations on a private farm to evaluate the performance of three potato cultivars (Sponta, Cara, and Elbieda) under different fertilizer treatments. The experiment was laid out in a split-plot design replicated thrice. The main plots had three potato cultivars, while the sub plots were comprised of seven fertilizer treatments. The results showed that the highest vegetative growth characters, viz. plant height, leaf chlorophyll index, and plant dry weight were produced by Sponta, followed by Cara, while the lowest growth attributes were recorded in Elbeida. Compared to the NPK inorganic fertilizer, organic fertilizers significantly improved the vegetative growth characteristics of potato in all treatments. Among the organic treatments, the highest growth parameters were recorded with the application of mixed organic fertilizer, vermicompost, and Azollapinnata (T1). The highest yield, viz. tuber yield, number of tubers per plant, and tuber weight, and yield quality characteristics, viz. total carbohydrates, starch, and TSS, were also recorded in T1. Our results demonstrate that the Sponta cultivar grown with the application of mixed organic fertilizer, vermicompost, and Azollapinnata (T1) produced the highest growth, yield, and quality of potato tubers. Thus, we recommend this treatment combination as a sustainable agricultural practice for potato production in similar areas","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116071407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3022
Nélio Ranieli F. Paula, É. Araújo, Cristiane Reis Martins, Vanessa Reis Martins
{"title":"Processing of fermented milk drink with different whey concentrations and addition of fruit pulps","authors":"Nélio Ranieli F. Paula, É. Araújo, Cristiane Reis Martins, Vanessa Reis Martins","doi":"10.21475/ajcs.21.15.07.p3022","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3022","url":null,"abstract":"Using whey as a complement in food formulation aiming at its utilization is an alternative to obtain new products. The present study aimed to develop a fermented milk drink with different concentrations of whey and addition of cupuaçu, soursop and açaí pulps, aiming at innovating and increasing the possibilities of production and consumption of dairy beverages. The experiment was conducted at the Food Agroindustry of the Federal Institute of Education, Science and Technology of Rondonia, Colorado do Oeste Campus, in the municipality of Colorado do Oeste, RO, Brazil. The experimental design used was completely randomized, in a 3x3 factorial scheme, consisting of three concentrations of whey (30%, 40% and 50%) and the incorporation of three fruit pulps (cupuaçu (Theobroma grandiflorum), soursop (Annona muricata) and açaí (Euterpe oleracea)), with 4 replicates. The results allowed us to conclude that whey concentration of 50% with addition of cupuaçu, soursop and açaí pulps is ideal for the production of fermented milk drink, as it leads to increased acidity and reduced values of °Brix and color parameters L and b*, making it possible to avoid the disposal of a highly nutritious compound into the environment. Whey concentration of 30% in the presence of açaí pulp enables the processing of milk drink with lower value of acidity and higher values of °Brix and color parameters L and b*. Whey concentrations of 30% and 40% in the fermented milk drinks of cupuaçu, soursop and açaí reduced acidity and increased °Brix, which suggests the possibility of using this by-product in the food industry to prepare sweeter milk drinks, meeting the minimum quality requirements according to the current legislation. The processing of whey-based dairy drinks in the presence of pulps of fruits, such as cupuaçu, soursop and açaí, constitutes an opportunity for diversification of production, improvement in the development of regional products and guarantee of food and nutritional security, respecting microbiological quality standards.","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133247308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3146
F. D. S. Quemel, A. P. Dantas, Lincon Sanches, A. G. Viana, E. S. Silva, E. R. Monteiro, Z. C. Gazim, J. Gonçalves, A. D. Lopes
{"title":"Chemotypes of turmeric (Curcuma longa L.) essential oil from four different states of Brazil","authors":"F. D. S. Quemel, A. P. Dantas, Lincon Sanches, A. G. Viana, E. S. Silva, E. R. Monteiro, Z. C. Gazim, J. Gonçalves, A. D. Lopes","doi":"10.21475/ajcs.21.15.07.p3146","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3146","url":null,"abstract":"Turmeric or curcuma (Curcuma longa L.) is a Zingiberaceae whose essential oil and coloring pigments obtained from the rhizome have been widely used in the food industry and medicine. This study aimed to extract and identify the chemical compounds found in C. longa essential oil from rhizomes collected in six different locations of Brazil. The oil extraction was carried out by hydrodistillation technique, using a Clevenger- type apparatus. The chemical constituents were identified by Gas Chromatography coupled to Mass Spectrometry (GC-MS). The principal component analysis (PCA) and the hierarchical cluster analysis (cluster)were done for the obtained data; and the composition of the studied accesses was verified. Three groups of chemotypes were obtained: group I was formed by the accesses of Campo Grande / Indígena-MS, Mara Rosa-GO, Campo Grande-MS and Perobal-PR, and had Ar-turmerone as its main compound; group II, formed by the access of Santa Tereza do Oeste-PR, presented α-costol and α-Phellandrene as the predominant compounds; and group III, the access of Holambra-SP, differed from the others regarding its essential oil chemical composition whose main agents were Curlone, Zingiberene, β-sesquiphellandrene, Humulene epoxide II, cis-α-trans-Bergamotol. The predominant chemical class in all accesses was hydrocarbon sesquiterpenes (Santa Tereza do Oeste-PR and Holambra-SP) and oxygenated sesquiterpenes (the others). This study evidenced the formation of three chemotypes","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125240896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3005
R. M. Brandão, V. Ferreira, L. Batista, E. Alves, W. D. Santiago, R. B. Barbosa, A. Caetano, D. Nelson, M. Cardoso
{"title":"Antifungal activity and the effect of the essential oil of Lippia origanoides Kunth on Aspergillus mycotoxins production","authors":"R. M. Brandão, V. Ferreira, L. Batista, E. Alves, W. D. Santiago, R. B. Barbosa, A. Caetano, D. Nelson, M. Cardoso","doi":"10.21475/ajcs.21.15.07.p3005","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3005","url":null,"abstract":"Lippia origanoides (Verbenaceae) is an aromatic plant of great importance in Brazilian medicine. The antifungal and antimycotoxigenic effects of Lippia origanoides essential oil (LEO) on Aspergillus carbonarius, Aspergillus flavus and Aspergillus ochraceus were investigated. The LEO was obtained by hydrodistillation, and it was characterized by GC-FID and GC-MS. The antifungal activity was determined by mycelial growth and mycotoxin and ergosterol assays. Scanning electron microscopy was used to evaluate the effect of the LEO on the plasma membrane of fungi. The main constituents in the LEO were carvacrol (58.72%), ρ-cymene (15.37%) and γ-terpinene (12.73%). Significant fungicidal effects of LEO against A. carbonarius (0.24 μL/mL), A. flavus (0.98 μL/mL) and A. ochraceus (0.98 μL/mL) were observed. A reduction in the ochratoxin A synthesis that ranged from 92.03 to 98.02% and from 81.72 to 96.92% for the fungal species A. carbonarius and A. ochraceus, respectively, was observed in the presence of LEO. The production of aflatoxin B1 and B2 was qualitatively inhibited. The biosynthesis of ergosterol was significantly inhibited by the application of LEO, and morphological alterations and damage to the integrity of the fungal cell membrane were observed. The LEO has a high potential for use as an antifungal and antimycotoxigenic agent against A. carbonarius, A. flavus and A. ochraceus","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130323694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3160
J. G. Palheta, R. Okumura, M. Freitas, M. E. Vieira, G. D. P. Albuquerque, Diana Jhulia Palheta de Sousa, J. Teixeira, Myriam Galvão Neves, C. F. Neto
{"title":"Azospirillum brasilense associated with nitrogen fertilization promotes improvement in macronutrient contents of maize plants","authors":"J. G. Palheta, R. Okumura, M. Freitas, M. E. Vieira, G. D. P. Albuquerque, Diana Jhulia Palheta de Sousa, J. Teixeira, Myriam Galvão Neves, C. F. Neto","doi":"10.21475/ajcs.21.15.07.p3160","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3160","url":null,"abstract":"The lack of studies on the benefits of growth-promoting bacteria associated with sources and doses of nitrogen fertilizers in maize in tropical regions has raised many doubts on the use of nitrogen management, as well as recommendation for the adequate dose for maize production. Therefore, the objective of this study was to evaluate the effect of the doses and sources of nitrogen associated with the absence and presence of seed inoculated with Azospirillum brasilense in the contents of N, P, K, Ca, Mg and S in the roots, culm and leaf of maize plants. It was used a completely randomized design, in a 4 x 2 x 2 factorial scheme, consisting of four nitrogen doses (0; 60; 120; and 180 kg ha-1 of N), two sources of N (common urea and urea treated with urease inhibitor) and absence and presence of inoculation with Azospirillum brasilense, with four replications. The results identified that the N doses positively influenced the concentration of N, P, and S in the culm of maize plants. The use of urea with urease inhibitor was not efficient in optimizing nitrogen fertilization, providing similar accumulations of macronutrients to common urea. The inoculation with Azospirillum brasilense promoted a concentration of 10.4% of N in the stem when compared to urea without inoculation. Seed treatment with Azospirillum brasilense at a concentration of 1 g / kg of seed at a dose of 180 kg ha-1 of N provided a higher content of macronutrients in corn, regardless of the sources of common urea or urea treated with a urease inhibitor","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122779130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3175
E. F. Dornelles, J. G. D. Silva, C. Colet, D. D. R. Fraga, V. Pansera, O. Alessi, I. Carvalho, F. Lautenchleger, J. A. D. Rosa, Eduarda Warmbier, M. S. Jung, A. K. Polanczyk
{"title":"The efficiency of Brazilian oat cultivars in reducing fungicide use for greater environmental quality and food safety","authors":"E. F. Dornelles, J. G. D. Silva, C. Colet, D. D. R. Fraga, V. Pansera, O. Alessi, I. Carvalho, F. Lautenchleger, J. A. D. Rosa, Eduarda Warmbier, M. S. Jung, A. K. Polanczyk","doi":"10.21475/ajcs.21.15.07.p3175","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3175","url":null,"abstract":"Oat cultivars more efficient at reducing fungicide can prevent contamination of soil, water and food. The objective of the study is to measure the efficiency of oat cultivars recommended for growing in Brazil by reducing the number of fungicide applications, considering favorable and unfavorable crop season conditions for productivity and progress of the main leaf diseases. The study was conducted in 2015, 2016 and 2017, in Augusto Pestana, RS, Brazil. The experimental design was a randomized block with three replications in a 22 x 4 factorial scheme, for 22 oat cultivars and 4 conditions of fungicide use [without application; an application at 60 days after emergence; two applications at 60 and 75 days after emergence; and three applications at 60, 75 and 90 days after emergence]. The fungicide FOLICUR® CE was used in 2015 and 2016 and the fungicide PRIMO® in 2017 in the dosage of 0.75 and 0.3 liters ha-1, respectively. The plots were sprayed using BD 04 fan nozzle with 45 PSI pressure, and spray volume close to 120 liters ha-1. The condition of a crop season favorable to the progress of leaf diseases identifies with quality cultivars more efficient in reducing the use of fungicide, enabling processes with lower environmental impacts with food security. Under favorable agricultural year conditions and unfavorable to the productivity and progress of the main leaf diseases of oats, the most efficient cultivars to reduce the use of fungicide are URS Altiva and URS Guria","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"358 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115858238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p2824
M. C. D. A. Pereira, C. Azevedo, J. D. Neto, Mariana de Oliveira Pereira, J. Ramos, Kheila Gomes Nunes, G. Lyra, L. M. F. Saboya
{"title":"Production of forage palm cultivars (Orelha de Elefante Mexicana, IPA-Sertânia and Miúda) under different salinity levels in irrigation water","authors":"M. C. D. A. Pereira, C. Azevedo, J. D. Neto, Mariana de Oliveira Pereira, J. Ramos, Kheila Gomes Nunes, G. Lyra, L. M. F. Saboya","doi":"10.21475/ajcs.21.15.07.p2824","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p2824","url":null,"abstract":"Brazilian semiarid region is characterized by irregular rainy periods that limits the production of forage feed for the maintenance of agricultural livestock and causes losses in the production. Despite that, semiarid region stands out in the production of forage palm, buffering the impact of drought in the area. Thus, this study aimed at analyzing the effect of different levels of salinity in irrigation water on the production of forage palm in the semiarid region. The experiment was arranged as a complete randomized block, in a 4x3 factorial arrangement and four levels of salinity (0.2, 2.0, 3.8 and 5.6 dS m-1); three cultivars (Miúda, Orelha de Elefante Mexicana and IPA-Sertânia) with 4 replications. The variables evaluated were the following: number of primary, secondary, tertiary and total cladodes, cladode biomass and estimative of threshold salinity (SL). The results showed that irrigation with saline water with an electrical conductivity of 2.0 dS m-1 negatively affected the emission of cladodes of superior orders for all forage palm cultivars. Miúda cultivar presented the best production of fresh phytomass (13.36 kg per plant) under a salinity level of 4.04 dS m-1, followed by Orelha de Elefante Mexicana (12.55 kg per plant) under a salinity level of 2.73 dS m-1 and Baiana (11.56 kg per plant) under a salinity level of 2.17dS m-1.","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125807757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p2902
A. G. Cavalcante, L. B. Lemos, F. C. Meirelles, V. A. Filla, A. Cavalcante, L. A. Aquino
{"title":"Agronomic and qualitative performance of some special grain bean cultivars","authors":"A. G. Cavalcante, L. B. Lemos, F. C. Meirelles, V. A. Filla, A. Cavalcante, L. A. Aquino","doi":"10.21475/ajcs.21.15.07.p2902","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p2902","url":null,"abstract":"In Brazil, bean consumption is predominated by grains like carioca, but special grains are gaining space on Brazilian tables and can be a source of income for producers. The objective of this study was to evaluate the agronomic and qualitative performance of common bean cultivars with special grains, aiming to identify those with productive potential and superior technological characteristics. The treatments consisted of nine bean cultivars with special grains: BRS Radiante, BRS Realce, BRS Pitanga, BRSMG Tesouro, BRS Marfim, BRSMG União, IAC Tigre, EPAMIG Ouro Vermelho, and EPAMIG Ouro da Mata. The agronomic (number of pods per plant, number of grains per pod, mass of 100 grains, and grain yield) and qualitative (sieve yield, crude protein, cooking time, percentage of imbibition before and after cooking, percentage of whole grains after cooking, and grain hydration capacity) attributes were evaluated. There were statistical differences between cultivars for the number of grains per pod and mass of 100 grains. The cultivars EPAMIG Ouro Vermelho, BRS Marfim, and BRS Pitanga presented the highest yields, with values of 2,907, 2,871, and 2,608 kg ha-1, respectively. There was variability between cultivars for all qualitative attributes. The cultivars BRS Radiante, BRSMG Realce, BRSMG Tesouro, IAC Tigre, and EPAMIG Ouro Vermelho stood out with superior quality grains","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128251092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3030
Darika Bunphan, R. Wanna, Goitseone Malambane
{"title":"Evaluation 16 elite sugarcane lines for ethanol yield and yield related traits under rainfed conditions","authors":"Darika Bunphan, R. Wanna, Goitseone Malambane","doi":"10.21475/ajcs.21.15.07.p3030","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3030","url":null,"abstract":"The world demand for clean renewable energy has seen a rise in use of sugarcane in production of bioenergy products like bio-ethanol which is produced from molasses and extracted juice of stalk. This then brings a competition between production for food and for bioenergy in the sugarcane industry. Therefore, this calls for breeders and producers to develop and produce high yielding sugarcane varieties to meet the demand. We undertook a study with the aim to screen the recently released elite lines for the ethanol yield and related traits. The study was conducted in two locations under rainfed conditions in Maha Sarakham, Thailand. The results showed that all the locations had no effect on the studied genotypes thus suggesting that they are stable over different locations. The mean values show that SG. KK07-478 and RT2004-085 showed better performance recording higher juice yield, juice weight, TSS, percent of ethanol and estimated ethanol yield in both locations. We found interaction between location and variety except in TSS and percent of ethanol, RT2004-085 showed the highest TSS, juice weight, SG, PE and EEY in combine both locations. A high correlation of EEY to juice yield (0.967***) and juice weight (0.978***) also percent ethanol was highly correlated with TSS (0.953**) this then suggest that to improve ethanol yield breeders should focus on improved the performance of juice yield, juice weight and the TSS. Because of the higher performance, KK07-478 and RT2004-085 should further be evaluated in several other locations before they are adopted by farmers","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127254708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
July 2021Pub Date : 2021-07-07DOI: 10.21475/ajcs.21.15.07.p3176
S. M. Nascimento, J. A. L. Júnior, Pedro Moreira de Sousa Júnior, Mateus Higo Daves Alves, Janile do Nascimento Costa, K. Faial
{"title":"Physico-chemical assessment of waters used to irrigate agricultural lands of Amazon","authors":"S. M. Nascimento, J. A. L. Júnior, Pedro Moreira de Sousa Júnior, Mateus Higo Daves Alves, Janile do Nascimento Costa, K. Faial","doi":"10.21475/ajcs.21.15.07.p3176","DOIUrl":"https://doi.org/10.21475/ajcs.21.15.07.p3176","url":null,"abstract":"The use of pesticides / fertilizers in plantations has become a problem in maintaining the quality of surface water. Thus, the objective of this study was to evaluate the water quality for irrigation purposes in the Rio Apéu microbasin – Para. The physico-chemical parameters evaluated were: pH, DO, SAR, TDS and EC measured in situ and the metals Al, Fe, Na, Ca, Mg determined in the laboratory Evandro Chagas Institute, according to the method of APHA. The average levels of pH (5.51), OD (5.04 mg L-1) are indications of normal condition in Amazonian waters. The results of Al (332 mg L-1) and Fe (5.74 mg L -1) imply the leaching of sediments from the geological formation of the region rich in these minerals, even though they present values above what is recommended by the legislation. The Richard classification allowed us to define that the waters of the study area have low salinity and sodicity, so they are not restricted to use. Thus, the results of the water quality analysis in the watershed can be concluded that it does not offer environmental problems in the use for irrigation activity","PeriodicalId":218435,"journal":{"name":"July 2021","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123386709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}