Pesquisa Agropecuaria Tropical最新文献_第4页

Bioinputs and organic production in Brazil: a study based on the Embrapa’s Bioinsumos application1 巴西的生物投入和有机生产:基于Embrapa bioinsumo应用的研究

Pesquisa Agropecuaria Tropical Pub Date : 2023-01-01 DOI: 10.1590/1983-40632023v5376326

Vanuze Costa de Oliveira, Luan Danilo Ferreira de Andrade Melo, João Luciano de Andrade Melo Júnior, Regla Toujaguez La Rosa Massahud, Marília Alves Grugiki

{"title":"Bioinputs and organic production in Brazil: a study based on the Embrapa’s Bioinsumos application1","authors":"Vanuze Costa de Oliveira, Luan Danilo Ferreira de Andrade Melo, João Luciano de Andrade Melo Júnior, Regla Toujaguez La Rosa Massahud, Marília Alves Grugiki","doi":"10.1590/1983-40632023v5376326","DOIUrl":"https://doi.org/10.1590/1983-40632023v5376326","url":null,"abstract":"ABSTRACT The use of bioinputs has been intensified in conventional and organic systems. In Brazil, the National Bioinputs Program was instituted to enhance their production and use in crops, and the Empresa Brasileira de Pesquisa Agropecuária (Embrapa) launched the Bioinsumos (bioinputs) application, containing the bioproducts registered by the Brazilian Ministry of Agriculture, Livestock and Supply. This study aimed to identify the classes and number of bioinputs for phytosanitary control included in the Embrapa’s Bioinsumos application with authorized use for the organic agriculture in the country. There are 526 bioinputs for the phytosanitary control of several pests and diseases in various agricultural crops, which are divided into eleven classes, of which only two do not have bioproducts for organic agriculture: microbiological bactericide and pheromone. Despite the number of bioinputs for organic agriculture, in practice, their use is still reduced, what may be related to limited financial resources, lack of knowledge of their existence and the ways of using them. Thus, it is necessary a greater incentive and public guidance for the development of bioinputs with greater accessibility for rural producers, especially for those who work with organic agriculture.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135609511","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

Effect of biofertilization with cattle urine on the chemical properties of an Oxisol from the Amazon savanna 牛尿生物施肥对亚马逊热带草原Oxisol化学性质的影响

Pesquisa Agropecuaria Tropical Pub Date : 2023-01-01 DOI: 10.1590/1983-40632023v5375568

Deyse Cristina Oliveira da Silva, Eduardo Nunes Nascimento, Ayrton Oliveira da Silva, Sandra Catia Pereira Uchôa, Glauber Ferreira Barreto

{"title":"Effect of biofertilization with cattle urine on the chemical properties of an Oxisol from the Amazon savanna","authors":"Deyse Cristina Oliveira da Silva, Eduardo Nunes Nascimento, Ayrton Oliveira da Silva, Sandra Catia Pereira Uchôa, Glauber Ferreira Barreto","doi":"10.1590/1983-40632023v5375568","DOIUrl":"https://doi.org/10.1590/1983-40632023v5375568","url":null,"abstract":"ABSTRACT Soil correctives and mineral fertilizers are important for a sustainable production; however, they are ineffective in the long run, showing the need to apply alternative products. This research aimed to analyze the effect of cattle urine concentrations on the chemical properties of an Oxisol from the Amazon savanna. The experimental design was completely randomized, in a split-plot scheme over time, with five replications. Six cow urine concentrations (0, 10, 20, 40, 80 and 100 %) were randomized in the plots, and five soil collection times for evaluation (0, 7, 14, 21 and 28 days after application) were designated as subplots. At each collection time, the soil chemical properties were determined. The applied cow urine increases the soil pH up to the neutral range. The application of increasing concentrations of cattle urine positively influences the potassium content, sum of bases, base saturation and cation exchange capacity of the soil. The levels of organic matter decrease linearly over the evaluation periods, independently of the applied cattle urine concentrations. Among the studied concentrations, that of 80 % is the most recommended to improve the soil chemical attributes.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135550940","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

Fluorescent Pseudomonas spp. and Bacillus spp. for phosphate solubilization and growth promotion of garlic 荧光假单胞菌和芽孢杆菌对大蒜增磷和促生长的作用

Pesquisa Agropecuaria Tropical Pub Date : 2023-01-01 DOI: 10.1590/1983-40632023v5375301

Vinícius Rodrigo Mazzuco, Cláudio da Cunha Torres Júnior, Gloria Regina Botelho

{"title":"Fluorescent Pseudomonas spp. and Bacillus spp. for phosphate solubilization and growth promotion of garlic","authors":"Vinícius Rodrigo Mazzuco, Cláudio da Cunha Torres Júnior, Gloria Regina Botelho","doi":"10.1590/1983-40632023v5375301","DOIUrl":"https://doi.org/10.1590/1983-40632023v5375301","url":null,"abstract":"ABSTRACT Garlic is a nutrient demanding crop which requires a high investment for fertilization and especially for phosphate (P) fertilizers, due to its high retention by the soil. It is possible to use the P solubilizing microbiota, especially rhizobacteria, to make P available and reduce fertilization. Fluorescent Pseudomonas spp. (CBS02) and Bacillus spp. (EB17) isolates were tested at triple superphosphate doses (0 % - without triple superphosphate; 50 % - 472.82 kg ha-1; 100 % - 945.65 kg ha-1). The experimental design was randomized blocks, in a 4 x 3 x 4 factorial scheme, with four treatments (CBS02 isolate, EB17 isolate, isolates mixture and control) and four replications. The size, fresh and dry masses, P content of the fourth leaf and yield were evaluated. The mixture of Pseudomonas spp. (CBS02) and Bacillus spp. (EB17) used in the inoculation of the garlic bulbils increased the size, dry mass and P content of the fourth leaf, as well as the yield of the crop without triple superphosphate, indicating that the P solubilization capacity of the isolates was increased when these were combined. It was possible to observe an increment in all the evaluated variables, indicating that the isolates P solubilization capacity was enhanced when they were combined.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"251 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135550939","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

Selection of entomopathogenic fungi to control stink bugs and cotton boll weevil1 昆虫病原真菌防治臭虫和棉铃象鼻虫的选择

Pesquisa Agropecuaria Tropical Pub Date : 2023-01-01 DOI: 10.1590/1983-40632023v5376316

Larissa Moreira de Sousa, Eliane Dias Quintela, Heloiza Alves Boaventura, José Francisco Arruda e Silva, Bruna Mendes Diniz Tripode, José Ednilson Miranda

{"title":"Selection of entomopathogenic fungi to control stink bugs and cotton boll weevil1","authors":"Larissa Moreira de Sousa, Eliane Dias Quintela, Heloiza Alves Boaventura, José Francisco Arruda e Silva, Bruna Mendes Diniz Tripode, José Ednilson Miranda","doi":"10.1590/1983-40632023v5376316","DOIUrl":"https://doi.org/10.1590/1983-40632023v5376316","url":null,"abstract":"ABSTRACT Entomopathogenic fungi stand out in the biological control of several agriculturally important insects. Six isolates of Metarhizium anisopliae, Cordyceps javanica, Beauveria sp. and B. bassiana were screened to control Anthonomus grandis, Euschistus heros, Oebalus poecilus, O. ypsilongriseus and Thyanta perditor, important insect pests of soybean, cotton and rice. The bioassays were conducted in a completely randomized design, with four replications (10 insects/replication). Significant differences for virulence were observed between the tested fungal species and isolates. For A. grandis, the most virulent isolate was M. anisopliae BRM 2335, followed by Beauveria BRM 14527 and BRM 67744 [82.5 to 97.5 % of mortality; average lethal time (LT50) of 5.9 to 7.8 days]. M. anisopliae BRM 2335 was also highly virulent to the four stink bug species (75 to 97.5 % of mortality; LT50 of 5.2 to 9.7 days). For the stink bugs, Beauveria sp. BRM 67744 was infectious to O. poecilus (75 % of mortality), but failed to control E. heros (16.9 % of mortality). C. javanica BRM 27666 and BRM 14526 showed average virulence to the stink bugs and A. grandis (17.5 to 57.3 % of mortality; LT50 of 6.0 to 9.7 days). M. anisopliae was consistently more virulent to the stink bugs than the other fungi. Therefore, M. anisopliae BRM 2335 was selected for further studies under screenhouse and field conditions to control A. grandis and other stink bug species, especially E. heros.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135610519","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

Occurrence of Dinarmus basalis parasitizing Callosobruchus maculatus in Vigna unguiculata in the semiarid region of the Rio Grande do Norte state, Brazil 巴西北里奥格兰德州半干旱区马蹄蜂寄生斑点斑足螨的基础地鼠发生情况

Pesquisa Agropecuaria Tropical Pub Date : 2023-01-01 DOI: 10.1590/1983-40632023v5375902

Ewerton Marinho da Costa, Francisco Edivino Lopes da Silva, Elania Clementino Fernandes, Valmir Antonio Costa, Elton Lucio Araujo

引用次数: 0

Agronomic performance of wheat under post-emergence herbicide application 苗期除草剂对小麦农艺性能的影响

IF 1

Pesquisa Agropecuaria Tropical Pub Date : 2022-01-01 DOI: 10.1590/1983-40632022v5269908

Miguel Colombo, L. Albrecht, A. Albrecht, G. V. Araújo, A. F. M. Silva

{"title":"Agronomic performance of wheat under post-emergence herbicide application","authors":"Miguel Colombo, L. Albrecht, A. Albrecht, G. V. Araújo, A. F. M. Silva","doi":"10.1590/1983-40632022v5269908","DOIUrl":"https://doi.org/10.1590/1983-40632022v5269908","url":null,"abstract":"ABSTRACT In addition to the herbicides already registered for the wheat crop, others may be selective, such as saflufenacil, atrazine, mesotrione and triclopyr. This study aimed to assess the selectivity of herbicides via crop yield analysis, alone and in mixtures, applied to wheat in post-emergence, at the end of tillering. Two experiments were conducted using a randomized blocks design. The first experiment (E1) involved 13 and the second one (E2) 7 treatments, consisting of the application of 2,4-D, diclofop, iodosulfuron, clodinafop, saflufenacil, pyroxsulam, atrazine, mesotrione and triclopyr, alone or in mixtures. Wheat injury symptoms, plant height, number of spikelets per plant, number of grains per spikelet, 1,000-grain weight and yield were assessed. The application of diclofop and iodosulfuron was selective to the wheat, maintaining yield even under the water stress conditions observed in E1. Under the same conditions, applying 2,4-D, clodinafop, saflufenacil, pyroxsulam, atrazine/mesotrione, triclopyr or saflufenacil + atrazine/mesotrione reduced the wheat yield, with different injury levels. Under greater water availability (E2), 2,4-D, clodinafop, saflufenacil, pyroxsulam and triclopyr were selective to the wheat, with no negative effect on yield. The application of atrazine/mesotrione showed a high injury potential for the crop and reduced the wheat yield.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67250647","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: 2

Effect of climate smart agricultural practices on food security among farming households in Kwara State, North-Central Nigeria 气候智能型农业实践对尼日利亚中北部夸拉州农户粮食安全的影响

IF 1

Pesquisa Agropecuaria Tropical Pub Date : 2022-01-01 DOI: 10.1590/1983-40632022v5270538

L. Adebisi, Oluwaremilekun Ayobami Adebisi, A. Jonathan, Olufunke Tomisona Oludare, E. Odum

{"title":"Effect of climate smart agricultural practices on food security among farming households in Kwara State, North-Central Nigeria","authors":"L. Adebisi, Oluwaremilekun Ayobami Adebisi, A. Jonathan, Olufunke Tomisona Oludare, E. Odum","doi":"10.1590/1983-40632022v5270538","DOIUrl":"https://doi.org/10.1590/1983-40632022v5270538","url":null,"abstract":"ABSTRACT Climate change brings a huge threat to the sustainability of food production and other livelihood activities in vulnerable areas like Nigeria, because it relies majorly on rain-fed agriculture. This study aimed to evaluate the effect of climate smart agricultural practices (CSAP) on food security of farming households in the Kwara State, North-Central Nigeria. A three-stage sampling technique was used to select ninety farming households, and a structured questionnaire to obtain information for the study. The collected data were analyzed using the food security index, adaptation strategy use index and logistic regression model. The result revealed that crop rotation is the most used CSAP in the study area, and that 16.67 % of the respondents are low users, 53.33 % medium users and 30 % high users of CSAP. It was also observed that 58.9 % of the farming households are food secured, while 41.1 % are food insecure. The logistic regression showed that the food security of the farming households is significantly affected by education, access to extension visits, farm size, off-farm income and CSAP.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67250867","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

Biological parameters of Tetranychus mexicanus (McGregor) (Acari: Tetranychidae) in papaya and passion fruit 番木瓜和百香果中墨西哥叶螨的生物学参数

IF 1

Pesquisa Agropecuaria Tropical Pub Date : 2022-01-01 DOI: 10.1590/1983-40632022v5272154

Jessica Ferreira Barrancas, N. M. Silva, G. J. N. D. Vasconcelos

{"title":"Biological parameters of Tetranychus mexicanus (McGregor) (Acari: Tetranychidae) in papaya and passion fruit","authors":"Jessica Ferreira Barrancas, N. M. Silva, G. J. N. D. Vasconcelos","doi":"10.1590/1983-40632022v5272154","DOIUrl":"https://doi.org/10.1590/1983-40632022v5272154","url":null,"abstract":"ABSTRACT The main crops attacked by Tetranychus mexicanus (McGregor) include papaya (Carica papaya L.) and passion fruit (Passiflora edulis Sims); however, the biological parameters of the mite in these hosts remain unknown. This research aimed to analyze the biology, development, survival and reproduction, as well as estimate the fertility life table of T. mexicanus in papaya and passion fruit, in an acclimatized chamber. The duration of the developmental stages of T. mexicanus was established and the reproductive parameters of the females were determined and used to construct the life table. The egg-adult period was 11.2 ± 0.07 and 12.0 ± 0.11 days, with a survival rate of 92.0 ± 0.04 and 79.0 ± 0.06 % for the T. mexicanus populations, respectively in papaya and passion fruit. Both the egg-adult periods and survival rates were significantly different. The fecundity was 106.0 ± 8.96 and 81.7 ± 7.21 eggs/♀, with a net reproduction rate (R0) of 86.8 ± 0.15 and 56.7 ± 0.12 ♀/♀/generation, respectively the for papaya and passion fruit populations, with significant differences. The results indicate that T. mexicanus has a high capacity to develop, survive and reproduce on both hosts, especially on papaya.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67251049","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

Allelopathic effects of Mikania micrantha Kunth on barnyardgrass and lowland rice1 薇甘菊对禾草和低地水稻的化感作用

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Pesquisa Agropecuaria Tropical Pub Date : 2022-01-01 DOI: 10.1590/1983-40632022v5271356

Koko Tampubolon, T. Zulkifi, Mukhtar Yusuf

{"title":"Allelopathic effects of Mikania micrantha Kunth on barnyardgrass and lowland rice1","authors":"Koko Tampubolon, T. Zulkifi, Mukhtar Yusuf","doi":"10.1590/1983-40632022v5271356","DOIUrl":"https://doi.org/10.1590/1983-40632022v5271356","url":null,"abstract":"ABSTRACT Secondary metabolites from weeds have potential as a natural herbicide and are safe for the main crop. This study aimed to screening secondary metabolites in Mikania micrantha extract and their effect on the agronomic, physiological and histological characteristics of barnyardgrass and lowland rice. A non-factorial randomized block design was used, with extract concentrations of Mikania micrantha (0; 20; 40; 60; 80; 100 %) and 2,4-D dimethyl amine herbicide as comparison. The M. micrantha extract presented favonoids, tannins, alkaloids and saponins. The concentration of 20-100 % inhibited the barnyardgrass growth, but was considered safe for the lowland rice, and increased the root length and volume, while the concentration of 60 % increased the number of leaves and stomatal density in the lowland rice. The concentration of 20-100 % significantly inhibited the root volume, biomass, SPAD total chlorophyll and growth reduction of barnyardgrass, and it was classifed as an inhibitor. The barnyardgrass tocixity also increased as the concentration grew from 60 to 100 %. The M. micrantha extract reduced the barnyardgrass growth by 63.5 %, being close to the percentage presented by the 2,4-D dimethyl amine (65.6 %).","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67251212","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: 3

Evaluation of the biotechnical characteristics of vetiver and paspalum grasses for use in soil reinforcement techniques under erosion threat 侵蚀威胁下香根草和雀稗用于土壤加固技术的生物技术特性评价

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Pesquisa Agropecuaria Tropical Pub Date : 2022-01-01 DOI: 10.1590/1983-40632022v5271617

F. Holanda, Luiz Diego Vidal Santos, Valter Rubens Alcantara Santos Sobrinho, Pedro Vinícius Bertulino de Menezes, Jeferson Ribeiro Santos

{"title":"Evaluation of the biotechnical characteristics of vetiver and paspalum grasses for use in soil reinforcement techniques under erosion threat","authors":"F. Holanda, Luiz Diego Vidal Santos, Valter Rubens Alcantara Santos Sobrinho, Pedro Vinícius Bertulino de Menezes, Jeferson Ribeiro Santos","doi":"10.1590/1983-40632022v5271617","DOIUrl":"https://doi.org/10.1590/1983-40632022v5271617","url":null,"abstract":"ABSTRACT Soil erosion on slopes demands the use of techniques that promote soil cohesion, increasing its shear strength, while contributing to the foristic-landscape recovery. This study aimed to analyze the morphological characteristics of vetiver and paspalum grasses, in order to understand their contribution to soil stabilization, under greenhouse conditions. The following parameters were evaluated: plant height; number of tillers per plant; root length, diameter, volume and dry matter. Both species showed similar values for root length and diameter, while the number of tillers per plant was higher for the paspalum grass. Concerning the plant height, no statistical differences were identified, showing that both can promote a good soil cover. The paspalum grass presented a similar performance in several morphometric characteristics, when compared to the vetiver grass, showing a strong potential to be adopted as part of the techniques on the recovery of degraded areas related to soil stabilization.","PeriodicalId":46867,"journal":{"name":"Pesquisa Agropecuaria Tropical","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67251270","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