Revista Brasileira de Engenharia Agrícola e Ambiental最新文献_第9页

Morphophysiology of soursop under salt stress and H2O2 application in the pre-flowering phase 花前期盐胁迫和H2O2胁迫下的酸石榴形态生理

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p948-957

J. D. Capitulino, G. S. Lima, C. A. D. Azevedo, A. A. R. D. Silva, L. A. A. Soares, T. F. L. Arruda, Vitória D. de Sousa, H. Gheyi

{"title":"Morphophysiology of soursop under salt stress and H2O2 application in the pre-flowering phase","authors":"J. D. Capitulino, G. S. Lima, C. A. D. Azevedo, A. A. R. D. Silva, L. A. A. Soares, T. F. L. Arruda, Vitória D. de Sousa, H. Gheyi","doi":"10.1590/1807-1929/agriambi.v27n12p948-957","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n12p948-957","url":null,"abstract":"ABSTRACT In the semi-arid region of the Brazilian Northeast, water sources generally have high levels of salts, standing out as one of the abiotic stresses that restrict the growth and development of plants. In this context, the objective of the present study was to evaluate the effects of foliar applications of hydrogen peroxide on the morphophysiology of soursop under salt stress in the pre-flowering phase. The experiment was carried out in a greenhouse, using a randomized block design and a 4 × 4 factorial arrangement, with four values of electrical conductivity of the irrigation water - ECw (0.8, 1.6, 2.4, and 3.2 dS m-1) and four concentrations of hydrogen peroxide - H2O2 (0, 10, 20, and 30 μM), with three replicates. An increase in water electrical conductivity from 0.8 dS m-1 reduced stomatal conductance, CO2 assimilation rate, instantaneous carboxylation efficiency, and leaf water saturation deficit. It inhibited the growth of soursop plants at 370 days after transplanting. Hydrogen peroxide at concentrations of up to 10 μM increased leaf transpiration and water use efficiency of soursop plants irrigated with 1.8 dS m-1 water in the pre-flowering phase.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77407366","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}

引用次数: 1

Morphophysiology and gas exchange of pomegranate under salt stress and foliar application of nitrogen 盐胁迫和叶面施氮对石榴形态生理和气体交换的影响

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p958-965

F. Figueiredo, R. T. Fátima, J. S. Nóbrega, T. I. Silva, J. Ferreira, J. Ribeiro, M. L. S. Leal, L. A. A. Soares, T. J. Dias

{"title":"Morphophysiology and gas exchange of pomegranate under salt stress and foliar application of nitrogen","authors":"F. Figueiredo, R. T. Fátima, J. S. Nóbrega, T. I. Silva, J. Ferreira, J. Ribeiro, M. L. S. Leal, L. A. A. Soares, T. J. Dias","doi":"10.1590/1807-1929/agriambi.v27n12p958-965","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n12p958-965","url":null,"abstract":"ABSTRACT Salinity is one of the abiotic stresses that affect gas exchange and growth of pomegranate. In this context, the application of nitrogen fertilizer through the leaves can minimize these effects. Thus, the objective of present study was to evaluate the effect of foliar nitrogen fertilization on pomegranate seedlings irrigated with brackish water. The design used was randomized blocks, in an incomplete factorial scheme (Central Composite Design) with five electrical conductivities of irrigation water - ECw (0.50, 1.15, 2.75, 4.35, and 5.00 dS m-1) and five doses of foliar nitrogen fertilization - FNF (0, 0.33, 1.15, 1.97, and 2.30 g L-1), with four replicates and two plants per experimental plot. Plant height, number of leaves, stem diameter, and gas exchange (stomatal conductance, net photosynthesis, intercellular CO2 concentration, transpiration rate, instantaneous carboxylation efficiency, instantaneous water use efficiency, and intrinsic water use efficiency) were evaluated at 60 days after the beginning of irrigation with saline water. Salinity of irrigation water negatively affects the gas exchange of pomegranate seedlings. Foliar nitrogen fertilization up to 1.31 g L-1 improves plant height and number of leaves in pomegranate seedlings under salt stress. Foliar nitrogen fertilization up to 1.59 g L-1 increases the net photosynthesis of pomegranate seedlings.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90523361","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}

引用次数: 0

Improved design and experiment of separating sieve for potato digger 马铃薯挖泥机分离筛的改进设计与试验

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p966-972

Shengshi Xie, Kailiang Lu, Weigang Deng, Fang Wang, Peng Li, Guangyu Liu

{"title":"Improved design and experiment of separating sieve for potato digger","authors":"Shengshi Xie, Kailiang Lu, Weigang Deng, Fang Wang, Peng Li, Guangyu Liu","doi":"10.1590/1807-1929/agriambi.v27n12p966-972","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n12p966-972","url":null,"abstract":"ABSTRACT The original two-order separating sieve has a good potato-soil separating ability, but it causes significant damage to potatoes while ensuring a high potato detection rate, which in turn affects the working effectiveness of the potato digger. Thus, it is necessary to improve the design of the original swing separation sieve with a two-order sieve surface to one with a three-order sieve surface to solve the contradiction between the potato detection and potato damage. On this basis, the movement characteristics of potatoes and the separation performance of the new sieve were experimentally investigated. The experiment was conducted in a test field in Wuchuan County using a completely randomized design in a single-factor scheme with three factors and five levels, with five crank speeds (140, 150, 180, 210 and 225 rpm), five machine forward speeds (1.41, 1.51, 1.70, 1.89 and 2.21 km h-1) and five boom-connecting rod length combinations (250-350-1,030, 250-370-1,040, 270-370-1,050, 290-370-1,060 and 310-370-1,070 mm). Each experiment was repeated three times at each level, and the average value was taken as the final result. The experimental results demonstrate that the new three-order separation sieve can ensure a high potato detection rate while maintaining a low potato skin breakage rate.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"358 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73979022","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}

引用次数: 0

Non-destructive method for estimating chrysanthemum leaf area 菊花叶面积的无损估算方法

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p934-940

T. I. Silva, J. Ribeiro, M. G. Dias, R. R. P. Cruz, L. Macêdo, J. S. Nóbrega, G. N. Sales, E. P. D. Santos, F. Costa, J. Grossi

{"title":"Non-destructive method for estimating chrysanthemum leaf area","authors":"T. I. Silva, J. Ribeiro, M. G. Dias, R. R. P. Cruz, L. Macêdo, J. S. Nóbrega, G. N. Sales, E. P. D. Santos, F. Costa, J. Grossi","doi":"10.1590/1807-1929/agriambi.v27n12p934-940","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n12p934-940","url":null,"abstract":"ABSTRACT Chrysanthemum (Dendranthema grandiflora) is the second most produced and commercialized ornamental plant in the world. Measuring leaf area through non-destructive methods is fundamental for studies on its growth and production. The estimation of leaf area by linear dimensions of the leaves can be a strategy for this purpose. The objective of this study was to find allometric equations to estimate the leaf area of chrysanthemum. The linear, linear without intercept, quadratic, cubic, power, and exponential regression models were used for the analysis. The choice of equations was based on the highest coefficients of determination. The non-destructive method using allometric models has accuracy for estimating the leaf area (LA) of chrysanthemum from the product between leaf length (L) and leaf width (W). The LA of chrysanthemum can be estimated using the equation ŷ = 0.6611*LW0.9490 (L - leaf length; W - leaf width). This equation will allow researchers and producers to determine leaf area non-destructively.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83739927","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}

引用次数: 1

Organic and mineral fertilization determining the agronomic performance of sunflower cultivars and soil chemical attributes 有机肥和矿肥对向日葵品种农艺性能和土壤化学特性的影响

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p927-933

W. V. D. Silva, J. Taveira, P. B. Fernandes, P. C. Silva, A. Costa, C. M. Costa, P. R. Giongo, N. S. D. Corioletti, A. Gurgel

{"title":"Organic and mineral fertilization determining the agronomic performance of sunflower cultivars and soil chemical attributes","authors":"W. V. D. Silva, J. Taveira, P. B. Fernandes, P. C. Silva, A. Costa, C. M. Costa, P. R. Giongo, N. S. D. Corioletti, A. Gurgel","doi":"10.1590/1807-1929/agriambi.v27n12p927-933","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n12p927-933","url":null,"abstract":"ABSTRACT This study aimed to verify the effect of the application of filter cake, via soil and in association with mineral fertilization, on sunflower cultivars (Helianthus annuus L.) and the chemical properties of the soil. The experimental design used was randomized blocks in a 3 × 2 factorial scheme with six replicates, totaling 36 experimental units. Three sunflower cultivars (Sany 66, Nusol 4140, and Nusol 4170) and two fertilization strategies (mineral fertilization with and without filter cake) were used. Resorting to the filter cake increased the oil concentration in Sany 66. Mineral fertilization did not significantly affect achene production, with mean values being 2561.58 kg ha-1. However, including filter cake resulted in a 21% increase in phosphorus (P) content in the 0-0.20 m soil layer in sunflower crops of the Nusol 4140 variety. Therefore, fertilization with filter cake, in combination with chemical fertilizers or alone, can be an effective strategy to increase soil P content and oil concentration in sunflower cultivation.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86382072","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}

引用次数: 0

Physicochemical characterization of oxisol subjected to succession culture 演替培养对氧化土理化特性的影响

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p980-985

Adryel K. O. A. Laurindo, A. O. Smaniotto, Lucas M. de Morais, Thiago L. Silva, Darly G. de Sena Júnior, S. C. Cruz

{"title":"Physicochemical characterization of oxisol subjected to succession culture","authors":"Adryel K. O. A. Laurindo, A. O. Smaniotto, Lucas M. de Morais, Thiago L. Silva, Darly G. de Sena Júnior, S. C. Cruz","doi":"10.1590/1807-1929/agriambi.v27n12p980-985","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n12p980-985","url":null,"abstract":"ABSTRACT No-till farming is the practice closest to the concept of sustainable agriculture. The minimum soil movement and continuous contribution of crop residues to the farming system reduce erosion, mitigate the greenhouse effect, increase the organic matter content, and improve the physical and chemical quality of the soil. This study aimed to assess the effect of five-year succession cropping on the physical and chemical attributes of oxisol. The crops were sown for five consecutive years in the same plots, using a randomized block design in split plots with four replicates. The plots were crops grown in succession to soybean, namely Congo grass (Urochloa ruziziensis syn. Brachiaria ruziziensis), Congo grass intercropped with maize (Zea mays L.), pearl millet (Pennisetum glaucum), sorghum (Sorghum bicolor L.), maize, and slender leaf rattlebox (Crotalaria ochroleuca). The subplots were the following sampled soil layers: 0-5, 5-10, and 10-20 cm. The physicochemical attributes of these three soil layers were evaluated. Pearl millet cycled K efficiently, providing the soil with K concentrations equivalent to those of the K fertilization treatments. No single crop or intercrop increased the soil P concentration. Congo grass stood out for its ability to increase the Mg concentration. The 0-5 cm soil layer had the best physicochemical attributes based on the accumulated organic matter.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79579886","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}

引用次数: 0

Extraction technology of flavonoids from Angelica dahurica 白芷总黄酮的提取工艺研究

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p941-947

Fei Fan, Ning Lu, Shunchang Pu, Zhien Ding

引用次数: 0

Climate control in the feeding area for Girolando cows: Effects on environmental and production variables 吉兰多奶牛饲养区的气候控制:对环境和生产变量的影响

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-25 DOI: 10.1590/1807-1929/agriambi.v27n12p973-979

L. J. M. P. E. Sousa, Roberta Passini, Eduardo A. de Almeida, A. Amaral

引用次数: 0

Management strategies for Anredera cordifolia in coffee culture 咖啡栽培中茶树的管理策略

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-01 DOI: 10.1590/1807-1929/agriambi.v27n8p585-592

P. V. Silva, João P. Z. Coeti, Andrea Ferrari, Karolainy T. da S. Melo, R. C. Dias, B. F. Schedenffeldt, P. A. Monquero, Pedro A. V. Salmazo, E. Medeiros, C. C. Bicalho, M. Mauad

{"title":"Management strategies for Anredera cordifolia in coffee culture","authors":"P. V. Silva, João P. Z. Coeti, Andrea Ferrari, Karolainy T. da S. Melo, R. C. Dias, B. F. Schedenffeldt, P. A. Monquero, Pedro A. V. Salmazo, E. Medeiros, C. C. Bicalho, M. Mauad","doi":"10.1590/1807-1929/agriambi.v27n8p585-592","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n8p585-592","url":null,"abstract":"ABSTRACT Coffee plantations installed at high altitudes and near forested areas have been highly infested with Anredera cordifolia. The objective of this work was to evaluate the effectiveness of different pre- and post-emergence herbicide treatments on A. cordifolia after mechanical mowing. A field experiment was carried out in a coffee plantation with natural infestation of A. cordifolia in a completely randomized design with a split-plot scheme and four replicates, in which the main plot an herbicides application and the subplot was the days after the initial application (DAI). The treatments were as follows: saflufenacil + glyphosate (70 + 960 g a.i. ha-1); chlorimuron + glyphosate (80 + 960 g a.i. ha-1); metsulfuron + glyphosate (6 + 960 g a.i. ha-1); flumioxazin + glyphosate (25 + 960 g a.i. ha-1), and glyphosate (960 g a.i. ha-1); with sequential application of glyphosate (960 g a.i. ha-1); glyphosate + indaziflam (960 + 75 g a.i. ha-1); indaziflam (75 g a.i. ha-1); and a control without herbicide application. Mechanical control, followed by the application of the treatments flumioxazin + glyphosate and metsulfuron + glyphosate in the first application and sequential application of indaziflam, proved to be effective. Control of this weed should be based on the removal of its plant residues from the field to reduce the regrowth and germination of aerial tubers.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80594909","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}

引用次数: 0

Organochlorine and organophosphate pesticides in soils of a vulnerable area from an aquifer in Northern Colombia 哥伦比亚北部含水层脆弱地区土壤中的有机氯和有机磷农药

Revista Brasileira de Engenharia Agrícola e Ambiental Pub Date : 2023-08-01 DOI: 10.1590/1807-1929/agriambi.v27n8p610-617

Mauricio Rosso-Pinto, Vicente Vergara-Flórez, J. Marrugo-Negrete

{"title":"Organochlorine and organophosphate pesticides in soils of a vulnerable area from an aquifer in Northern Colombia","authors":"Mauricio Rosso-Pinto, Vicente Vergara-Flórez, J. Marrugo-Negrete","doi":"10.1590/1807-1929/agriambi.v27n8p610-617","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v27n8p610-617","url":null,"abstract":"ABSTRACT The Morroa aquifer, which is an essential source of water supply in Sucre, Colombia, with more than 500,000 users, may be at risk because of pesticide contamination that comes from different agricultural activities. The aim of this research was to evaluate the relationship between the presence of pesticides and the physicochemical properties of soils in the most vulnerable areas of the Morroa aquifer. Therefore, farmers were surveyed about pesticide usage and soil samples which were taken for analysis of pesticide and physicochemical properties. The results demonstrated that soils in these areas were relatively homogeneous in terms of texture, pH, cation exchange capacity and organic matter content. Pesticides detected in these soils were malathion, β-BCH, p-p’DDE, m-p’DDD, p-p’DDT, endosulfan, endrincetone, chlorpyrifos, dieldrin, endosulfan-sulfate, heptachlor-epoxide, and parathion. Physicochemical properties such as pH and texture of soils and intrinsic characteristics of the pesticide were found as the most influential variables according to statistical results. This study also presents a map of the spatial distribution of pesticide concentration according to the concentration of pesticides, which constitutes an important tool for the planning of agricultural activities that supports decision-making and the implementation of measures to mitigate potential impacts caused by pesticide pollution.","PeriodicalId":21302,"journal":{"name":"Revista Brasileira de Engenharia Agrícola e Ambiental","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85518988","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}

引用次数: 0