Revista Brasileira de Engenharia Agricola e Ambiental最新文献_第6页

Models for predicting the performance of fertilizer metering in seed cum fertilizer drill 播种机施肥计量性能的预测模型

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-01-01 DOI: 10.1590/1807-1929/agriambi.v25n1p51-57

R. T. Spagnolo, D. P. Rosa, M. D. S. Pinho, Cheiner S. Schiavon, D. Schmechel

引用次数: 1

Maize yield influenced by the residual effects of sedimentary phosphates in high-calcium soil 高钙土壤沉积磷残留效应对玉米产量的影响

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-11-01 DOI: 10.1590/1807-1929/agriambi.v24n11p735-740

Richard Matos de Souza, Lafayette F. Sobral, Adilson de Oliveira Junior

{"title":"Maize yield influenced by the residual effects of sedimentary phosphates in high-calcium soil","authors":"Richard Matos de Souza, Lafayette F. Sobral, Adilson de Oliveira Junior","doi":"10.1590/1807-1929/agriambi.v24n11p735-740","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v24n11p735-740","url":null,"abstract":"It was evaluated the residual effects of sedimentary phosphates associated with the annual application of phosphate on maize grown in Inceptisol soil with a high exchangeable calcium concentration and pH value of 6.0. The experiment was conducted based on a completely randomized block design with strip-split plots. The main plots were treated with Bayóvar rock phosphate, Itafós rock phosphate, or triple superphosphate, while the control received no additional phosphate. The phosphate sources were applied by broadcasting and incorporated in the soil two years prior to the current study at 200 kg of P2O5 ha -1, with no tillage in subsequent years. In the sub-plots, phosphate doses of 0, 60, and 120 kg of P2O5 ha -1 year-1, as triple superphosphate, were applied at the base of the sowing furrows. Leaf phosphorus (P), grain yield, and soil P by ion exchange resin were evaluated. Differences were observed between the leaf P among the plots treated with phosphate sources and the control plot, which declined from 2013 to 2015. In 2013 and 2014, rock phosphate residuals influenced the grain yield when there was no annual application of phosphate. In 2015, grain yields in rock phosphate treatments without annual phosphate application were not superior to those in the control treatment and did not differ significantly from the plots receiving triple superphosphate. Furthermore, it was found that the soil P content extracted by ion exchange resin was higher in the Itafós treatment; however, for this source, the correlation between soil P and grain yield was relatively weak.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"140 1","pages":"735-740"},"PeriodicalIF":1.2,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86623041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth and yield of gherkin cultivars in coconut fiber fertigated with nutrient solutions 椰纤维营养液施肥下小黄瓜品种的生长和产量

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-11-01 DOI: 10.1590/1807-1929/agriambi.v24n11p741-748

F. A. Oliveira, M. K. T. D. Oliveira, S. T. Santos, Jessilanne Plínia Barbosa de Medeiros Costa, J. F. Medeiros, L. R. L. Régis

{"title":"Growth and yield of gherkin cultivars in coconut fiber fertigated with nutrient solutions","authors":"F. A. Oliveira, M. K. T. D. Oliveira, S. T. Santos, Jessilanne Plínia Barbosa de Medeiros Costa, J. F. Medeiros, L. R. L. Régis","doi":"10.1590/1807-1929/agriambi.v24n11p741-748","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v24n11p741-748","url":null,"abstract":"Substrate cultivation has been gaining interest from vegetable producers, however technical information for many crops is still recent, such as the gherkin, especially regarding the nutrient solution. This study was developed with the objective of evaluating the performance of three gherkin cultivars (Do Norte, Liso de Calcutá and Liso Gibão) grown in coconut fiber and fertigated with nutrient solutions of different concentrations (50, 75, 100 and 125% of the recommendation for melon), using a randomized block design, in a 3 x 4 factorial scheme, with four repetitions and plots composed of three plants. Growth and production variables were evaluated. In general, cv. Liso de Calcutá produced heavier fruits (35.69 g fruit-1), however cv. Liso Gibão produced an average of 21.6 fruits plant-1, being more productive (542.19 g planta-1). The cultivars Do Norte and Liso de Calcutá were less demanding on nutrients. In order to obtain the highest production of gherkin fruits cultivated in coconut fiber, fertigations must be carried out using nutrient solutions diluted in 50% for the cultivars Do Norte and Liso de Calcutá, while for cv. Liso Gibão it is recommended to use nutrient solution diluted in 75% of the concentration of nutrients recommended for the cultivation of melon.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"37 1","pages":"741-748"},"PeriodicalIF":1.2,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85994984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphophysiological responses and mechanisms of salt tolerance in four ornamental perennial species under tropical climate 热带气候下4种观赏多年生植物的形态生理响应及耐盐机制

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-10-01 DOI: 10.1590/1807-1929/AGRIAMBI.V24N10P656-663

C. F. Lacerda, Emanuele Victor de Oliveira, Antônia L. R. Neves, H. Gheyi, M. A. Bezerra, C. A. Costa

{"title":"Morphophysiological responses and mechanisms of salt tolerance in four ornamental perennial species under tropical climate","authors":"C. F. Lacerda, Emanuele Victor de Oliveira, Antônia L. R. Neves, H. Gheyi, M. A. Bezerra, C. A. Costa","doi":"10.1590/1807-1929/AGRIAMBI.V24N10P656-663","DOIUrl":"https://doi.org/10.1590/1807-1929/AGRIAMBI.V24N10P656-663","url":null,"abstract":"Salinity affects growth and quality of ornamental plants, but studies on mechanisms of salt tolerance in these plants are scarce, particularly under tropical climate conditions. Thus, the morphophysiological leaf responses of four tropical ornamental species were studied, in order to identify the mechanisms involved in the tolerance to salinity and their potentials to be irrigated with brackish water. The research was conducted in a greenhouse using a completely randomized block design, in a 10 x 4 factorial scheme, with four repetitions. The treatments consisted of ten levels of electrical conductivity of irrigation water (0.5; 1.0; 2.0; 3.0; 4.0; 5.0; 6.0; 8.0; 10.0 and 12.0 dS m-1) and four ornamental tropical species (Catharanthus roseus, Allamanda cathartica, Ixora coccinea, and Duranta erecta). At 30 and 60 days after the beginning of saline treatments (DAST), measurements of leaf gas exchange and chlorophyll index were performed. At 60 DAST, leaf area, specific leaf area, leaf area ratio, leaf succulence, Na+ and proline concentrations were measured. The physiological and morphophysiological responses of the leaves indicate that I. coccinea species has high capacity to grow under irrigation with saline water. Its higher tolerance to salinity is related to the lower concentration of Na+ in the leaves. Conversely, the sensitivity of D. erecta was associated with high Na+ and proline concentrations in leaves. The leaf concentration of proline showed to be an indicator more related to the sensitivity of ornamental plants to salt stress; however this relationship should not be generalized for all ornamental species studied.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"279 1","pages":"656-663"},"PeriodicalIF":1.2,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73653213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Phosphorus use efficiency by maize cultivars for the production of green ears 玉米品种对绿穗生产的磷利用效率

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-08-01 DOI: 10.1590/1807-1929/agriambi.v24n8p547-553

A. F. Almeida, Leilson Costa Grangeiro, Núbia M. Ferreira, V. V. Gomes, Santiago A. Silva, R. Lacerda

{"title":"Phosphorus use efficiency by maize cultivars for the production of green ears","authors":"A. F. Almeida, Leilson Costa Grangeiro, Núbia M. Ferreira, V. V. Gomes, Santiago A. Silva, R. Lacerda","doi":"10.1590/1807-1929/agriambi.v24n8p547-553","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v24n8p547-553","url":null,"abstract":"ABSTRACT The objective of this study was to evaluate the efficiency of the use of phosphorus by maize cultivars for the production of green ears. Two experiments were carried out, one in the rainy season (March to June) and the other in the dry period (August to December), both at the Rafael Fernandes Experimental Farm, in the community of Alagoinha, belonging to the Universidade Federal Rural do Semiárido, in the municipality of Mossoró, RN, Brazil. The treatments consisted of a combination of three levels of phosphorus (low, medium and high) and eight corn cultivars (Dona Josélia, Carrapateira, Pontinha, Cruzeta, Potiguar, BRS 2022, Status and AG 1051). A randomized block design was used in a 3 × 8 factorial scheme, with four repetitions. The evaluated characteristics were: number and total mass of green ears, number and mass of tradable, stuffed and depleted green ears, agronomic and physiological efficiency of production of recovery and use of phosphorus. The cultivars showed better productive performance when fertilized with phosphorus. The cultivars Cruzeta, Potiguar, BRS 2022, Status, AG 1051 and Carrapateira were the most efficient in the use of phosphorus to produce green maize.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"19 1","pages":"547-553"},"PeriodicalIF":1.2,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86395303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Estimation of daily global solar irradiance from the air temperature in the state of Paraná, Brazil 根据巴西帕拉纳<e:1>州的气温估算每日全球太阳辐照度

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-08-01 DOI: 10.1590/1807-1929/agriambi.v24n8p512-519

C. Sgarbossa, J. V. Virgens Filho

{"title":"Estimation of daily global solar irradiance from the air temperature in the state of Paraná, Brazil","authors":"C. Sgarbossa, J. V. Virgens Filho","doi":"10.1590/1807-1929/agriambi.v24n8p512-519","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v24n8p512-519","url":null,"abstract":"ABSTRACT Global solar irradiance (GSI) is a fundamental source of energy on Earth. Despite its importance, sunshine or solar irradiance data are rarely available from weather stations. In the absence of available data, there are empirical methods that can be used to estimate solar irradiance. The objective of this study is to calibrate the parameters and to evaluate the performance of four empirical models of solar irradiance estimation (those of Chen, Hargreaves, Hunt, and Richardson) from air temperature data for eight localities in the state of Paraná, Brazil. Data were obtained from the Meteorological Database for Teaching and Research (BDMEP). For the comparison of means among the models, the Kruskal-Wallis non-parametric test was used. Dunn’s multiple comparison tests were used to analyze which models presented different means from the others. The performance of each model was assessed using the indices Pearson correlation coefficient (r), mean bias error (MBE), root mean square error (RMSE), Wilmott concordance index (d), performance index (c) and the Nash-Sutcliffe efficiency (NSE) coefficient. It was observed that the models proposed by Chen and Hunt presented the best performances in the estimation of GSI for the studied Paraná state localities, given that they yielded results which are closer to the observed historical data.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"12 1","pages":"512-519"},"PeriodicalIF":1.2,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73222193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimates of genetic parameters in diallelic populations of cotton subjected to water stress 水分胁迫下棉花双等位群体遗传参数的估计

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-08-01 DOI: 10.1590/1807-1929/agriambi.v24n8p541-546

W. S. Vasconcelos, R. C. Santos, Ubieli Alves Araújo Vasconcelos, J. Cavalcanti, F. J. C. Farias

引用次数: 5

Biostimulant alleviates abiotic stress of mango grown in semiarid environment 生物刺激素可缓解半干旱环境下芒果的非生物胁迫

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-07-01 DOI: 10.1590/1807-1929/agriambi.v24n7p457-464

M. A. Silva, Í. Cavalcante, L. E. D. Mudo, V. B. P. Paiva Neto, R. A. Amariz, J. Cunha

{"title":"Biostimulant alleviates abiotic stress of mango grown in semiarid environment","authors":"M. A. Silva, Í. Cavalcante, L. E. D. Mudo, V. B. P. Paiva Neto, R. A. Amariz, J. Cunha","doi":"10.1590/1807-1929/agriambi.v24n7p457-464","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v24n7p457-464","url":null,"abstract":"ABSTRACT The shoot maturation phase is important for growing mango tree because it precedes the floral induction, when plants are under stress caused by high temperatures and low water availability, that could be reduced by using plant biostimulant. Thus, the current study aimed to use a plant biostimulant containing yeast extract and amino acids to alleviate abiotic stress in mango plants, cv. Tommy Atkins, grown in semiarid environment. The experimental design consisted of randomized blocks with five treatments, five repetitions and five plants per plot. Treatments consisted of: T1) two foliar sprays with [biostimulant + KCl] + two foliar sprays with K2SO4; T2) No biostimulant and four foliar sprays with K2SO4; T3) three individual foliar sprays with biostimulant and one foliar spray with K2SO4; T4) two foliar sprays with biostimulant and two foliar sprays with K2SO4; and T5) two foliar sprays with [biostimulant + K2SO4] + one foliar spray with K2SO4. The variables evaluated were: i) leaf concentrations of soluble carbohydrates, starch, amino acids and proline; and ii) enzymatic activity of catalase and ascorbate peroxidase. The foliar spray with biostimulant during the branch maturation phase of mango trees grown in tropical semiarid environment alleviated plant abiotic stress. Three foliar biostimulant sprays and one K2SO4spray are recommended to alleviate mango plant abiotic stress in semiarid environment.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"50 1","pages":"457-464"},"PeriodicalIF":1.2,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81148771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Development and validation of hydraulic driven electronic penetrometer for georeferenced point collection 用于地理参考点采集的液压驱动电子穿透仪的研制与验证

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-07-01 DOI: 10.1590/1807-1929/agriambi.v24n7p497-502

Camila W. L. Parize, Thiago X. da Silva, L. L. Kmiecik, Guilherme L. Parize, Y. A. Oiole, S. P. Jasper

引用次数: 0

Growth, yield and gas exchanges of ‘D’Angola’ plantain under different plant densities 不同种植密度下“安哥拉”车前草的生长、产量和气体交换

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-07-01 DOI: 10.1590/1807-1929/agriambi.v24n7p490-496

V. A. Rodrigues Filho, S. Donato, A. M. Arantes, M. A. Coelho Filho, M. Lima

{"title":"Growth, yield and gas exchanges of ‘D’Angola’ plantain under different plant densities","authors":"V. A. Rodrigues Filho, S. Donato, A. M. Arantes, M. A. Coelho Filho, M. Lima","doi":"10.1590/1807-1929/agriambi.v24n7p490-496","DOIUrl":"https://doi.org/10.1590/1807-1929/agriambi.v24n7p490-496","url":null,"abstract":"ABSTRACT Information about production, crop systems and economic viability for technical grown of plantain are scarce in Brazil. Few technologies developed specifically for plantain are available; thus, there are many adaptations of information on banana crops extrapolated to plantain. The objective of this study was to evaluate the growth, nutritional status, gas exchanges, water use efficiency and yield of ‘D’Angola’ plantain under different plant densities, in the first production cycle. The treatments consisted of six plant densities (1,111; 2,500; 2,777; 3,125; 3,571; and 4,166 plants ha-1), which were evaluated in a randomized block design with four repetitions. Vegetative growth, leaf nutrient concentrations at the flowering stage, gas exchanges (monthly) at two reading times, fruit yield and water use efficiency at harvest were evaluated. The nutritional status is not dependent on plant density. The vegetative growth varied, regardless of the plant density, whereas the leaf area index increased as the plant density was increased. The leaf temperature increased as the plant density was increased. The water use efficiency for fruit yield, as a function of plant density, fitted to a quadratic model, with the maximum value at 3,301 plants ha-1. The use of 3,333 plants ha-1 is recommended for plantain.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"49 1","pages":"490-496"},"PeriodicalIF":1.2,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74435205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3