Applied Research & Agrotechnology最新文献_第9页

Potential of corn silage production in different sowing times in the Paraná Midwest region 中南<s:1>中西部地区不同播期玉米青贮生产潜力研究

Applied Research & Agrotechnology Pub Date : 2016-06-29 DOI: 10.5935/PAET.V9.N1.04

M. Neumann, Egon Henrique Horts, D. N. Figueira, G. Leão, D. Cecchin

{"title":"Potential of corn silage production in different sowing times in the Paraná Midwest region","authors":"M. Neumann, Egon Henrique Horts, D. N. Figueira, G. Leão, D. Cecchin","doi":"10.5935/PAET.V9.N1.04","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.04","url":null,"abstract":"The aim of this study was to evaluate the effects provided in the corn fields of early cycle sown in late times in the Parana Midwest region on production and plant components for the silage production. The experimental design was a randomized block consisting of four treatments, with each treatment corresponded to a different sowing time (T 1 : First week of November, T 2 : Second week of November; T 3 : Third week of November; T 4 : Fourth week of November) and three replications, where each repetition consisted of a parcel with an area of 16 m 2 . Corn plants were harvested in the hard dough stage where it was determined plant height, ear height, green biomass production, dry matter production and grain yield, in addition to the percentage physical composition of the anatomical structures of the plant (stem, leaves, bracts, cob and grain). In general context, crops sown in the first and second week of November showed superior results compared crops sown in the third and fourth week of the month concerning because resulted in increased production of dry biomass (28.321; 26.179; 20.291 and 18.758 kg ha -1 respectively), and higher grain yield (6.699; 7.147; 5.722 and 5.271 kg ha -1 respectively). Generally, the sowing of corn for silage from the third week of November to Guarapuava-PR region reduced the production of biomass per unit area.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"6 1","pages":"37-44"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82270598","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: 4

Initial growth of sugar cane due to mini - rebolo size of biostimulants application 甘蔗生长初期因微红豆大小施用生物刺激剂

Applied Research & Agrotechnology Pub Date : 2016-06-29 DOI: 10.5935/PAET.V9.N1.01

João Carlos Civiero, E. Daros, Ana Cristina Grade Fiori-Tutida, Michael J. Alves, Guilherme Grodzki Oliveira Figueiredo

{"title":"Initial growth of sugar cane due to mini - rebolo size of biostimulants application","authors":"João Carlos Civiero, E. Daros, Ana Cristina Grade Fiori-Tutida, Michael J. Alves, Guilherme Grodzki Oliveira Figueiredo","doi":"10.5935/PAET.V9.N1.01","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.01","url":null,"abstract":"The correct use of amino acids and humic substances can increase plant growth and development. Thus, this study aimed to test the interaction effect of an amino acid and a humic substance with the size of sugar cane mini cutting sover the early sugar cane development. The experiment was conducted at the Sugar cane Experimental Station in Paranavai City. The cultivar used was the RB867515 and the evaluation was performed at 60 days after planting. One used a completely randomized design in a factorial arrangement with three blocks (3x5x3). Beyond the control treatment, the biostimulants used were a humic substance and the L-glutamic acid. The five types of sugar cane mini cutting shad the following sizes: 0 (just the bud), 2, 4, 8, 12 and 16 cm. It can be concluded that, under the conditions of the experiment realization and evaluation, there was no interaction between the reserves of the mini cutting sand the application of the humic substances and the amino acid used. The root surface area, root diameter, root volume, root dry mass and dry mass of shoots showed a linear behavior, crescent and significant, according to the size of the mini cuttings.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"123 6 1","pages":"7-15"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83973006","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

Gas exchange, photochemical efficiency and photosynthetic pigments of peanut cultivars under water deficit in the soil 土壤水分亏缺条件下花生品种气体交换、光化学效率及光合色素的变化

Applied Research & Agrotechnology Pub Date : 2016-06-29 DOI: 10.5935/PAET.V9.N1.03

Erika Socorro Alves Graciano, H. Santos, Rejane M. Nogueira

{"title":"Gas exchange, photochemical efficiency and photosynthetic pigments of peanut cultivars under water deficit in the soil","authors":"Erika Socorro Alves Graciano, H. Santos, Rejane M. Nogueira","doi":"10.5935/PAET.V9.N1.03","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.03","url":null,"abstract":"The peanut is a legume identified as profitable alternative for small producers in the Brazilian semiarid region. In this region, the cultures are often submitted to water deficiency, which is considered a major cause of reduced productivity. The objective of this study was to evaluate the gas exchange, photochemical efficiency, photosynthetic pigments and production of dry biomass of peanut cultivars submitted to different water availability in the soil. The experiment was conducted in a greenhouse in a completely randomized design with factorial arrangement 2 x 3 and six replications. The cultivars were BR1 and BRS Havana, and water treatments were daily water availability, every five days and water availability suspension. The water availability every five days negatively affects gas exchange BRS Havana and the suspension of soil water availability stimulates stomatal closure of two cultivars, reducing stomatal conductance and leaf transpiration, nonetheless considered as an adaptation strategy to this condition. The content of photosynthetic pigments of BR1 and BRS Havana cultivars is reduced with the reduction of water availability in the soil hindering the production of dry biomass. The cultivar BR1 has greater assimilative capacity of CO2 and more efficient use of water.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"1 1","pages":"27-36"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89656120","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

Development of plants by interference auxins, cytokinins, gibberellins and ethylene 生长素、细胞分裂素、赤霉素和乙烯干扰植物发育

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAET.V9.N3.05

Giliardi Marinho Almeida, J. G. L. Rodrigues

{"title":"Development of plants by interference auxins, cytokinins, gibberellins and ethylene","authors":"Giliardi Marinho Almeida, J. G. L. Rodrigues","doi":"10.5935/PAET.V9.N3.05","DOIUrl":"https://doi.org/10.5935/PAET.V9.N3.05","url":null,"abstract":"Pueden interferir en el desarrollo vegetal factores externos y factores internos, como de hormonas y vitaminas, esas sustancias naturales o sinteticas pueden ser aplicadas directamente en las plantas, en partes como hojas, frutos y semillas, provocando alteraciones en los procesos vitales y estructurales, con la finalidad de incrementar la produccion, mejorar la calidad y facilitar la colecta. El objetivo del presente trabajo es analizar el crecimiento y desarrollo vegetal en las especies tratadas con auxinas, citoquininas, etileno y giberelinas. En la realizacion del presente trabajo fueron utilizadas revisiones bibliograficas de fechas de publicaciones antiguas y recientes, esa mezcla fue para exponer ideas y argumentos semejantes entre diversos autores de diferentes epocas. Pueden ser observados en esta revision que las auxinas tienen funcion de epinastia de la hoja y tallo, el amarillento de las hojas en la planta de frijol y en las plantas de maiz fueron observadas que despues de la pulverizacion con las auxinas no fue presentado cualquier sintoma de senescencia. En las plantas de soya hubo mayor contenido de clorofila debido al hecho de citoquininas y giberelinas inhibieron la degradacion de la clorofila. Los reguladores aplicados en conjunto y en diferentes concentraciones se pudieron observar diferentes resultados, como pueden ser vistos en esta revision bibliografica.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"34 1","pages":"111-117"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78624327","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: 5

Soil chemical attributes and wheat response to no-till surface liming 土壤化学性质及小麦对免耕表土层的响应

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAET.V9.N3.02

L. Meert, M. Müller, L. A. Z. Júnior, Leandro Michalovicz, R. D. Nascimento

{"title":"Soil chemical attributes and wheat response to no-till surface liming","authors":"L. Meert, M. Müller, L. A. Z. Júnior, Leandro Michalovicz, R. D. Nascimento","doi":"10.5935/PAET.V9.N3.02","DOIUrl":"https://doi.org/10.5935/PAET.V9.N3.02","url":null,"abstract":"After years of no-till (PD), arguments have emerged tha tthe requirement of lime (NC) in this system may be lower than for convention altillage system. However, the low quality on the adoption of the practices required to make PD system to work in the field,as well as the soil attributes stratification in depth in areas of consolidated PD have hindered yield increases and maximized crop shortfall due to draught periods, when liming can mitigate the negative effects of water restriction on nutrition and productivity of crops. The objective of this paper was to evaluate the initial effects of superficial liming in PD on soil chemical attributes, nutrition and yield of wheat, in a long run experiment settled in Guarapuava-PR. Treatments were: without limin gand with liming(rate necessary to reach V=70% in the 0-20 cm layer). Liming increased soil pHCaCl2 (5,12 → 5,70) and the level of calcium (4,90 → 5,32 cmolC dm-3) and decreased the already low level of Al3+(0,06 → 0,00 cmolC dm-3)in the 0-10 cm layer at 150 days after lime application. Using the rate necessary to reach V =70% in the 0-20 cm layer, liming did not significantly affect nutrition and yield of wheat cultivated just after lime application, in a cropping season with good rainfall distribution, on a soil with low Al3+ level and initial levels of basic cations above the critical levels.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"520 1","pages":"45-51"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77064277","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

Fertilizing potassium in rice cultivation in sandy soils of tropical lowland 热带低地沙质土壤中水稻的钾肥施用

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAeT.V9.N3.13

M. Lopes, F. R. D. Silva, Vanessa Alves Zellmer, P. Alves, R. R. Fidelis

{"title":"Fertilizing potassium in rice cultivation in sandy soils of tropical lowland","authors":"M. Lopes, F. R. D. Silva, Vanessa Alves Zellmer, P. Alves, R. R. Fidelis","doi":"10.5935/PAeT.V9.N3.13","DOIUrl":"https://doi.org/10.5935/PAeT.V9.N3.13","url":null,"abstract":"The rice plant is very demanding in nutrients, with potassium being that the plant nutrient further accumulates, and is essential to many physiological and biochemical processes in the plant. The objective of this study identify appropriate doses of potassium in the culture of rice, grown in sandy soils of lowland tropical rainforest in the state of Tocantins. The experiment was conducted in hydromorphic soil type Gleysol Humic of irrigated lowland, in the Araguaia-TO Formoso region. We used the experimental randomized block design, in a factorial 2 x 5, with four replications, two cultivars (Irga-424 and Irga-423) and five doses of K (60, 90, 120, 150 and 180 kg ha K -1), applied in the form of potassium chloride. Each experimental plot consisted of twenty-seven lines of 15 m in length, spaced 0.17 m between rows. The floor area was composed of the four central lines in the length of two linear meters. The characteristics evaluated were plant height, number of panicles m2, grain yield, weight of hundred grains, potassium content and chlorophyll index. Data were subjected to analysis of variance and regression at 5% probability by F test The cultivaresnao responded to the increased potassium fertilization in sandy soils of tropical lowland; the average yield was reached with the basic fertilization, sedo 6827.42 and 5215.35 kg ha-1 for Irga-424 and Irga-423, respectively.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"39 1","pages":"27-33"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87455835","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

Complementary nitrogen and irrigation as a tool for yield increase in soybean 补氮灌溉对大豆增产的影响

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAET.V9.N3.01

F. Pacentchuk, I. Sandini, M. K. Falbo, M. Neumann, F. Pozzan

引用次数: 0

Jambolan propagation by layering 分层的Jambolan传播

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAET.V9.N3.08

Cristiano Hossel, Jéssica Scalet Alves de Oliveira Hossel, A. W. Júnior, Juliana Cristina Radalli, Alexandre Luis Alegretti

{"title":"Jambolan propagation by layering","authors":"Cristiano Hossel, Jéssica Scalet Alves de Oliveira Hossel, A. W. Júnior, Juliana Cristina Radalli, Alexandre Luis Alegretti","doi":"10.5935/PAET.V9.N3.08","DOIUrl":"https://doi.org/10.5935/PAET.V9.N3.08","url":null,"abstract":"O objetivo deste trabalho foi avaliar a tecnica de alporquia para a propagacao do jamboleiro ( S. cumini ) sob diferentes concentracoes de acido indol-butirico (AIB). O delineamento experimental foi em blocos ao acaso, avaliando-se a concentracao de AIB (0, 2000 e 4000 mg L -1 ), com 3 repeticoes de 5 alporques por unidade experimental. Durante o processo de alporquia retirou-se anel completo de casca com cerca de 1,5 cm de largura, expondo o câmbio. Apos o anelamento aplicou-se na regiao do câmbio, 4 gotas de solucao diluida de AIB, respeitando-se sua concentracao, em cada extremidade do anel retirado. Apos a aplicacao do AIB, a area exposta foi envolvida com substrato comercial Plantmax ® pre-umedecido, ate se conseguir formato esferico de 5 a 7 cm de diâmetro do alporque revestindo-se com saco plastico transparente e amarrando-se as extremidades com arame galvanizado. Apos 180 dias avaliou-se os percentuais de enraizamento, comprimento e numero medio de raiz. Decorrido isso fez-se o plantio dos alporques enraizados para vasos plasticos, avaliando-se o percentual de sobrevivencia aos 60 dias. Recomendou-se a realizacao da tecnica de alporquia para o jamboleiro ( S. cumini ) sem a necessidade de uso de AIB, quando realizado em maio.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"16 1","pages":"97-102"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85540279","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

Feasibility of machinery transfer for growing grain in distant areas 机械转移用于边远地区种粮的可行性

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAET.V9.N3.11

F. Faggion, Paulo Andrade Rezende Neto, Tiago Pereira da Silva Correia, S. Martín

{"title":"Feasibility of machinery transfer for growing grain in distant areas","authors":"F. Faggion, Paulo Andrade Rezende Neto, Tiago Pereira da Silva Correia, S. Martín","doi":"10.5935/PAET.V9.N3.11","DOIUrl":"https://doi.org/10.5935/PAET.V9.N3.11","url":null,"abstract":"El costo de la mecanizacion en las propiedades agricolas es elevado y muchas veces puede ser reducido con la movilizacion de maquinas entre haciendas. El objetivo de este trabajo es verificar la viabilidad economica del cultivo de granos en areas apartadas con o sin la movilizacion de maquinaria. Por lo tanto fue realizado un estudio con un conjunto de haciendas donde fueron recolectados diferentes datos sobre las actividades y maquinas existentes en las haciendas. Estos fueron tabulados para la elaboracion de cuatro diferentes escenarios para ser analizados para la tomada de decisiones sobre las diferentes posibilidades de cultivo de areas. Los resultados muestran que la diferencia del costo total con o sin la movilizacion de maquinaria independiente de la expansion, pues presento pequenas diferencias en favor de la movilizacion de las maquinas. Con la movilizacion de la flota la utilizacion de la maquinaria es optimizada, hay una disposicion menor de recursos para la adquisicion de maquinas y la venta de las excedentes genera un valor recatado superior al sin movilizacion. La expansion de la area solamente se mostro viable con la movilizacion de maquinarias ya que el costo para adquisicion de maquinas seria elevado sin movilizacion.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"3 1","pages":"17-26"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82928913","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

Agronomic performance of Rice and beans intercropped with jatropha 麻疯树间作水稻和豆类的农艺性能

Applied Research & Agrotechnology Pub Date : 2016-01-01 DOI: 10.5935/PAET.V9.N3.07

R. R. Fidelis, Vinícius Almeida Oliveira, C. A. O. D. Andrade, Danilo Pereira Ramos, T. C. D. O. Tavares

引用次数: 0