Cientifica最新文献_第8页

Molecular-genetic analysis for validation of peach palm (Bactris gasipaes Kunt) landraces using RAPD markers 利用RAPD标记对桃棕地方品种进行分子遗传分析

Cientifica Pub Date : 2019-09-09 DOI: 10.15361/1984-5529.2019v47n3p313-320

Cirlande Cabral da Silva, D. Rodrigues, C. Clement, S. A. Filho

引用次数: 4

Variabilidade espacial de atributos químicos do solo em sistema de agropecuária familiar no Tocantins 托坎廷斯地区家庭农业系统土壤化学性质的空间变异性

Cientifica Pub Date : 2019-09-09 DOI: 10.15361/1984-5529.2019v47n3p344-357

Wilma Dias Santana, A. Santos, Amanda da Silva Reis, R. Tavares, Gilson Araújo de Freitas

{"title":"Variabilidade espacial de atributos químicos do solo em sistema de agropecuária familiar no Tocantins","authors":"Wilma Dias Santana, A. Santos, Amanda da Silva Reis, R. Tavares, Gilson Araújo de Freitas","doi":"10.15361/1984-5529.2019v47n3p344-357","DOIUrl":"https://doi.org/10.15361/1984-5529.2019v47n3p344-357","url":null,"abstract":"O monitoramento dos atributos quimicos do solo possibilita avaliar a qualidade e a capacidade do mesmo de exercer suas funcoes dentro de um determinado agroecossistema. Nesse sentido, objetivou-se avaliar a variabilidade espacial de atributos quimicos do solo em sistema de agricultura familiar, em diferentes usos agricolas. A area de estudo totalizou 7,91 ha, sob quatro tipos de cobertura do solo: pastagem de braquiaria associada a estilosantes, pastagem de andropogon, pomar e mata nativa. A amostragem do solo foi em malha amostral irregular composta por 160 pontos. Coletaram-se amostras deformadas nas profundidades de 0-10 e 10-20 cm, alem de amostras para a determinacao da liteira. As variaveis analisadas foram: CO, SB, CTCt, CTC pH 7, pH, Al 3+ , P, H+Al, m, V e liteira. Os dados foram submetidos a analise exploratoria e ao estudo geoestatistico. Os sistemas de cultivo reduziram os valores de CO, SB, CTCt, CTC pH 7 e pH do solo, principalmente nas subareas de pastagens. O pomar apresentou atributos quimicos similares as verificadas na area de referencia. Os valores, bem como a distribuicao espacial das variaveis avaliadas foram influenciados pelo uso do solo.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42175647","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

Efficacy of chlorantraniliprole applied in sugarcane planting furrow and foliar spray to control of sugarcane borer 氯虫腈在甘蔗种植沟和叶面喷雾中的防治效果

Cientifica Pub Date : 2019-09-09 DOI: 10.15361/1984-5529.2019v47n3p278-282

Henrico Luís Bizão de Assis, P. Paiva, P. C. D. Silva, Gustavo Gondim de Morais

{"title":"Efficacy of chlorantraniliprole applied in sugarcane planting furrow and foliar spray to control of sugarcane borer","authors":"Henrico Luís Bizão de Assis, P. Paiva, P. C. D. Silva, Gustavo Gondim de Morais","doi":"10.15361/1984-5529.2019v47n3p278-282","DOIUrl":"https://doi.org/10.15361/1984-5529.2019v47n3p278-282","url":null,"abstract":"Sugarcane borer ( Diatraea saccharalis ) is one of the most important insect pests in sugarcane crops in Brazil. Historically, this insect has been controlled with releases of parasitoid Cotesia flavipes . However, chemical control with diamides and insect growth regulators has been used to help in control of this pest. In this study, the effectiveness of the diamide chlorantraniliprole applied in the sugarcane planting furrow and foliar spray on sugarcane borer damage and production were assessed. The experiment was carried out in an experimental area of SP80-3280 sugarcane variety, planted in November 2016 in Uberaba (Brazil), followed a randomized block design with four treatments: control, chlorantraniliprole foliar (21 g ha ‒1 ), chlorantraniliprole furrow (105 g ha ‒1 ), and chlorantraniliprole furrow (105 g ha ‒1 ) + foliar (21 g ha ‒1 ), with five replicates (plots). Each experimental plot had six planting lines of 10 m long spaced 1.5 m (90 m 2 ). One chlorantraniliprole application in the planting furrow and foliar spray was performed in November 2016 and in March 2017, respectively. All plots were infested with D. saccharalis eggs in February and March 2017. In May 2017, the plant height, stalk diameter, and number of tillers were assessed. In October 2017, the mass of stalks, sugarcane borer holes, number and percentage of damaged internodes were evaluated. Chlorantraniliprole applied in the planting furrow did not reduce the damage caused by D. saccharalis . The spray of chlorantraniliprole reduced the damage of the sugarcane borer in about 52%. The chlorantraniliprole application did not affect the initial sugarcane development or its production. One chlorantraniliprole spray in sugarcane was not enough to avoid the D. saccharalis damage and other additional control measures should be used.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49386759","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

Quality of Carica papaya seedlings grown in an alternative substrate based on buriti wood (Mauritia flexuosa Lf) 在以布里提木为基材的替代基质中生长的番木瓜幼苗的质量

Cientifica Pub Date : 2019-09-09 DOI: 10.15361/1984-5529.2019v47n3p337-343

S. S. R. Matias, Ives Davi Louzeiro Dias, Yure Martins Camelo, Isnaiany Silva Souza, Florizânia Ribeiro de Castelo, Walas Rodrigues de Aguiar, M. S. Ferreira

{"title":"Quality of Carica papaya seedlings grown in an alternative substrate based on buriti wood (Mauritia flexuosa Lf)","authors":"S. S. R. Matias, Ives Davi Louzeiro Dias, Yure Martins Camelo, Isnaiany Silva Souza, Florizânia Ribeiro de Castelo, Walas Rodrigues de Aguiar, M. S. Ferreira","doi":"10.15361/1984-5529.2019v47n3p337-343","DOIUrl":"https://doi.org/10.15361/1984-5529.2019v47n3p337-343","url":null,"abstract":"The use of alternative organic substrates with physical, chemical and microbiological characteristics that promote the nutrition and sustenance of plants at the initial stages of development is essential to obtain satisfactory results in the production of crops. The objective of this work is to evaluate the phytotechnical characteristics of seedlings of Formosa papaya grown in a substrate based on buriti wood. The experiment was installed in a nursery located at the State University of Piaui (UESPI), campus of Corrente. The experimental design was completely randomized consisting of ten treatments and six replicates. The treatments were different percentages of buriti wood: S1-soil; S2 - soil:buriti wood, 90/10%; S3 - soil:buriti wood, 80/20%; S4 - soil:buriti wood, 70/30%; S5 - soil:buriti wood, 60/40%; S6 - soil:buriti wood, 50/50%; S7 - soil:buriti wood, 40/60%; S8 - soil:buriti wood, 30/70%; S9 - soil:buriti wood, 20/80%; S10 - soil:buriti wood, 10/90%. The variables were height, stem diameter, root length, number of leaves, shoot dry mass, root dry mass, total dry mass, stem height/diameter ratio, shoot/root dry mass ratio, and Dickson quality index. There was significance for height, stem diameter, root length, shoot dry mass, and total dry mass. Proportions of organic residues in the substrate composition contributed to a better development of Carica papaya seedlings. Thus, the use of 40% PaB mixed in the soil is recommended for the production of papaya seedlings.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41942606","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

Nitrogen fertilization with conventional and slow-release urea in two forms of application on maize 玉米常规氮肥和缓释尿素两种施肥方式

Cientifica Pub Date : 2019-09-09 DOI: 10.15361/1984-5529.2019v47n3p304-312

Hianka Carara de Souza, E. F. F. Rosa, Jéssica Fernandes Kaseker, M. A. Nohatto, M. Santos

{"title":"Nitrogen fertilization with conventional and slow-release urea in two forms of application on maize","authors":"Hianka Carara de Souza, E. F. F. Rosa, Jéssica Fernandes Kaseker, M. A. Nohatto, M. Santos","doi":"10.15361/1984-5529.2019v47n3p304-312","DOIUrl":"https://doi.org/10.15361/1984-5529.2019v47n3p304-312","url":null,"abstract":"Urea is the nitrogen fertilizer most used in agriculture and the most subject to N losses. Thus, it is important to look for alternatives to reduce these losses and increase agronomic N use efficiency. In this sense, this study evaluates the effect of split or single application of slow-release and conventional urea in maize development and yield, as well as the fertilizer use efficiency by plants. The experiment was carried out in Santa Rosa do Sul - SC, in a randomized complete block design with 5 treatments and 3 replicates. The treatments evaluated were: control; 100% of the recommended dose of conventional urea at sowing; 30% of the recommended dose of conventional urea at sowing and 70% at topdressing; 100% of the recommended dose of slow-release urea at sowing; 30% of the recommended dose of slow-release urea at sowing and 70% at topdressing. The variables analyzed were ear insertion height, stem diameter, leaf chlorophyll content (R1 stage), yield components, crop yield, and nitrogen use efficiency. The split application of slow-release urea to the soil positively affected stem diameter and nitrogen use efficiency in maize plants, being, therefore, a good fertilization alternative for the crop in the soil and climate conditions of the region.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47114343","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

Métodos de extração, formas e toxicidade de alumínio na soja cultivada em solos com elevados teores de Al-KCl 高铝KCl土壤中大豆中铝的提取方法、形态及毒性

Cientifica Pub Date : 2019-06-04 DOI: 10.15361/1984-5529.2019V47N2P239-255

G. Cunha, J. A. D. Almeida, F. D. Morais, M. Machado

{"title":"Métodos de extração, formas e toxicidade de alumínio na soja cultivada em solos com elevados teores de Al-KCl","authors":"G. Cunha, J. A. D. Almeida, F. D. Morais, M. Machado","doi":"10.15361/1984-5529.2019V47N2P239-255","DOIUrl":"https://doi.org/10.15361/1984-5529.2019V47N2P239-255","url":null,"abstract":"O aluminio (Al) “trocavel” do solo e tradicionalmente extraido com solucao de KCl 1 mol L -1 (Al-KCl). O emprego desta solucao pode superestimar o Al trocavel, implicando uma interpretacao equivocada dos efeitos toxicos desse elemento as plantas. O estudo objetivou avaliar, por meio de extracoes quimicas sequenciais (ES) e nao sequenciais (ENS), as possiveis fracoes de Al que possam estar contribuindo para a superestimacao do Al trocavel e se as mesmas estao relacionadas com sua toxicidade nas plantas de soja cultivadas em casa de vegetacao. Tambem, identificar a eficacia do KCl 1 mol L -1 em extrair somente as fracoes toxicas do Al e o extrator que melhor estimou o potencial toxico do mesmo as plantas.Para isso, foram realizadas ES utilizando os extratores, na ordem, CaCl 2 0,01 mol L -1 , KCl 0,1 e 1 mol L -1 e oxalato de amonio 0,2 mol L -1 e ENS com uma unica extracao, utilizando-se somente das tres ultimas solucoes. O Al proveniente de polimeros amorfos foram responsaveis pela superestimacao do Al-KCl. O Al extraido pelos diferentes extratores nao esta relacionado com sua toxicidade as plantas. Para os solos AC9 e RS nao houve resposta das plantas de soja a calagem e tampouco manifestacao expressiva de toxicidade de Al nas mesmas. Nos solos PE, BR e CB, o KCl 1 mol L -1 foi eficaz na estimativa do Al trocavel e do seu potencial toxico. O CaCl 2 0,01 mol L -1 foi o extrator que melhor identificou o potencial toxico do Al nos solos avaliados.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46479467","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

Postharvest conservation of minimally processed cassava roots subjected to different packaging systems 不同包装系统下最低限度加工木薯根的采后保存

Cientifica Pub Date : 2019-06-04 DOI: 10.15361/1984-5529.2019V47N2P144-155

M. Rinaldi, E. Vieira, J. F. Fialho

{"title":"Postharvest conservation of minimally processed cassava roots subjected to different packaging systems","authors":"M. Rinaldi, E. Vieira, J. F. Fialho","doi":"10.15361/1984-5529.2019V47N2P144-155","DOIUrl":"https://doi.org/10.15361/1984-5529.2019V47N2P144-155","url":null,"abstract":"Cassava ( Manihot esculenta Crantz) is one of the main energy sources in human food, being largely consumed and produced in Brazil. However, it is not easy to prepare and has a high deterioration degree after harvest. As an alternative, producers and agribusinesses are extensively using vacuum packaging for the storage of minimally processed cassava roots. This study evaluates the postharvest conservation of minimally processed cassava roots packed in 130 μm, 200 μm, and 300 μm LDPE packages with and without vacuum, stored at 3 °C and 90% relative humidity. Samples were evaluated every seven days for a period of 28 days for pH, titratable acidity, soluble solids, SS/TA ratio, texture, fresh weight loss, moisture, dry matter, cooking time, color (L*, a*, b*, increase in browning, chroma, and hue angle), and microbiology (counting mesophilic aerobes, psychrotrophic aerobes, molds and yeasts, total and thermotolerant coliforms). Minimally processed cassava roots packed in LDPE packages with higher thickness (200 μm and 300 μm) show greater stability in physicochemical and microbiological components. For packages 200 μm vacuum LDPE and 300 μm LDPE in the two atmosphere conditions, stored at 3 oC and 90% relative humidity, the shelf life of minimally processed cassava roots was 14 days. The recommended storage period for the remaining treatments is seven days.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47755102","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: 6

Iron biofortification in rice: in search of morphological traits for indirect selection in breeding programs 水稻铁的生物强化:寻找育种计划中间接选择的形态性状

Cientifica Pub Date : 2019-06-04 DOI: 10.15361/1984-5529.2019V47N2P199-209

C. Stafen, Ana Marina Pedrolo, Fernanda Pollo Paniz, T. Pedron, C. Busanello, Eduardo Venske, A. M. Júnior, B. L. Batista, A. Oliveira, C. Pegoraro

{"title":"Iron biofortification in rice: in search of morphological traits for indirect selection in breeding programs","authors":"C. Stafen, Ana Marina Pedrolo, Fernanda Pollo Paniz, T. Pedron, C. Busanello, Eduardo Venske, A. M. Júnior, B. L. Batista, A. Oliveira, C. Pegoraro","doi":"10.15361/1984-5529.2019V47N2P199-209","DOIUrl":"https://doi.org/10.15361/1984-5529.2019V47N2P199-209","url":null,"abstract":"Iron (Fe) deficiency is an important cause of health concern in developing countries, demanding mitigation strategies to fight this disorder. The biofortification of staple foods, such as rice ( Oryza sativa L.), could be achieved via the development of improved cultivars. Iron quantification is relatively costly and time-consuming, making its routine use impracticable in breeding programs. Therefore, the identification of traits to be used in indirect selection strategies would be of high interest. This study aimed to find promising traits for use in indirect selection programs aiming Fe biofortification in rice grains. A diverse set of 95 rice genotypes, mostly Brazilian, was grown at Southern Brazil, in 2016/2017, and Fe content in brown and polished grains, as well as other 12 morphological traits, were assayed. Analysis of variance, linear correlation, and path analysis were carried out. Different levels of association between traits were found, being panicles per plant and caryopsis width the most promising for use in indirect selection aiming increased Fe content in both brown and polished rice. However, secondary traits, such as caryopsis length, have also to be considered when performing selection aiming Fe biofortification in the cereal.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41610220","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

Consumer acceptability, physicochemical characteristics, and bioactive compounds of sweet potato roots subjected to osmotic dehydration 经渗透脱水处理的甘薯根的消费者接受度、理化特性和生物活性化合物

Cientifica Pub Date : 2019-06-04 DOI: 10.15361/1984-5529.2019V47N2P132-143

Kelly Michalichen, K. Schwarz, J. Resende, Tania Helena Neufeld, Bruna Tais Noronha

{"title":"Consumer acceptability, physicochemical characteristics, and bioactive compounds of sweet potato roots subjected to osmotic dehydration","authors":"Kelly Michalichen, K. Schwarz, J. Resende, Tania Helena Neufeld, Bruna Tais Noronha","doi":"10.15361/1984-5529.2019V47N2P132-143","DOIUrl":"https://doi.org/10.15361/1984-5529.2019V47N2P132-143","url":null,"abstract":"Sweet potato dehydration is a way of increasing shelf life, modifying and adding value to the final product. However, some of the compounds of nutritional interest may be lost during processing. Thus, this work evaluates different dehydration treatments for sweet potato, and determines the best condition for a quality product. Two sweet potato genotypes (UGA 127 and UGA 34) were first subjected to osmotic dehydration using a 65% sucrose solution or a 2% sodium chloride solution (NaCl), both for 5 hours, being compared with the control treatment. Subsequently, the samples were oven dried at 65 °C for 6 hours. Sweet potatoes were analyzed for sensory characteristics (color, flavor, crispness, aroma, overall acceptability, and purchase intent), physicochemical characteristics (color, titratable acidity, soluble solids), bioactive compounds (β-carotene, phenolic, ascorbic acid), and antioxidant capacity. Potatoes dehydrated with 65% sucrose were well accepted by the tasters. The soluble solids content and soluble solids/titratable acidity ratio were higher for sweet potatoes treated with 65% sucrose. Genotypes differed significantly for luminosity, and the highest average was found for UGA 127, indicating that potatoes processed from this root had a lighter coloration. The content of bioactive compounds varied as a function of the different treatments and genotypes; in general, the highest levels were found in the control and 65% sucrose treatments. Genotype UGA 127 treated with 65% sucrose proved to be a good marketing alternative for small farmers.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44409184","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

Alterações de atributos químicos e físicos de um Latossolo Vermelho na sucessão milheto-soja 谷子-大豆演替过程中红腐酚化学和物理性质的变化

Cientifica Pub Date : 2019-06-04 DOI: 10.15361/1984-5529.2019V47N2P221-230

Arlindo José da Costa Rabelo, J. O. Caetano, Sihélio Júlio Silva Cruz

{"title":"Alterações de atributos químicos e físicos de um Latossolo Vermelho na sucessão milheto-soja","authors":"Arlindo José da Costa Rabelo, J. O. Caetano, Sihélio Júlio Silva Cruz","doi":"10.15361/1984-5529.2019V47N2P221-230","DOIUrl":"https://doi.org/10.15361/1984-5529.2019V47N2P221-230","url":null,"abstract":"No Cerrado, o milheto destaca-se como planta de cobertura, por desenvolver-se bem em condicoes adversas de clima e solo. Assim, avaliou-se o efeito de cultivo em sucessao milheto-soja nos atributos quimicos do solo (pH, materia orgânica, concentracao de Ca, Mg, K e Al trocaveis, (H+Al) e teores de P disponiveis, nas profundidades de 0 a 0,20 m e 0,20 a 0,40 m), fisicos do solo (resistencia do solo a penetracao de raizes, densidade e porosidade total do solo, nas profundidades de 0 a 0,10 m e 0,10 a 0,20 m), na producao e acumulo de macronutrientes da biomassa seca da parte aerea de milheto e na produtividade da soja. O experimento foi instalado em um LATOSSOLO VERMELHO distrofico de textura argilosa, em Rio Verde-GO, safra 2013/2014. Os tratamentos foram compostos pelas variedades de milheto ADR500 e ADR300, pelos hibridos de milheto ADR7020 e ADR8010 e um tratamento-controle mantido sob vegetacao espontânea. Utilizou-se o delineamento em blocos ao acaso, com quatro repeticoes. Os milhetos ADR500 e o ADR8010 apresentaram maior producao de biomassa seca da parte aerea. Os tratamentos sob cultivo de milheto elevaram o teor de potassio no solo, na profundidade de 0 a 0,20 m. As areas com milheto apresentaram reducao da resistencia do solo a penetracao e a densidade do solo, em relacao a area com vegetacao espontânea. Embora os milhetos testados melhorem algumas das condicoes quimicas e fisicas do solo, isso nao se refletiu nos rendimentos da soja como cultura sucessora.","PeriodicalId":35044,"journal":{"name":"Cientifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47344030","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