Consulta: subjectFacets:"Planting density"
Registros recuperados: 18
Data/hora: 05/06/2024 17:00:14

Espaçamento e densidade de plantio em viveiro de seringueira.
Provedor de dados: 14
Autores: COQUEIRO, G. R.; VIEGAS, R. M. F.; ALVES, R. M.; VIEGAS, I. de J. M.
Verificou-se o efeito de diferentes espaçamentos com suas respectivas densidades em viveiro de seringueira, na produção de mudas do tipo convencional (raiz nua). Dos resultados obtidos, conclui-se que as melhores opções de espaçamento para viveiro de seringueira, levando-se em consideração uma maior produção de porta-enxertos por unidade de área, foram: 6(0,60m x 0,15m) x 1,20m e 2(0,50m x 0,15m) x 1,0m, com 62715 e 56960 porta-enxertos/ha em condições para receber os dois tipos de enxertia: verde e convencional.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Densidade; Enxertia verde; Porta-enxerto; Brasil; Amazonas; Rubber tree; Planting density; Spacing; Rootstock; Grafting; Green budding.; Espaçamento; Espécie; Enxerto; Hevea; Plantio; Seringueira.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665133

Densidades populacionais na cultura da cebola no Vale do São Francisco.
Provedor de dados: 14
Autores: RESENDE, G. M. de; COSTA, N. D.; DIAS, R. de C. S.
bitstream/CPATSA/7935/1/COT81.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Vale do São Francisco; Planting density; Cultivation; Onion.; Cebola; Densidade de Plantio.; Brazil; Onions.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133030

Cultivo orgânico do café: recomendações técnicas.
Provedor de dados: 14
Autores: RICCI, M. dos S. F.; ARAÚJO, M. do C. F.; FRANCH, C. M. de C.
Agricultura alternativa e agricultura convencional. Fundamentos da agricultura orgânica. A cafeicultura, segundo os princípios da agricultura orgânica. Escolha da espécie e das cultivares adequadas. Formação das mudas. Preparo da área de plantio. Correção do solo. Fontes de matéria orgânica e de nutrientes. Estercos. Compostagem. Vermicompostagem. Cobertura morta do solo. Cobertura viva do solo e adubos verdes. Biofertilizantes. Espaçamento e densidade de plantio. Controle alternativo de fitopatógenos e pragas do cafeeiro. Controle de fitopatógenos. Controle de pragas, ácaros e nematóides. Controle de plantas invasoras. Arborização ou sombreamento de cafezais. Conversão de lavouras convencionais em orgânicas. Certificação e comercialização de café orgânico.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Agricultura natural; Vermicompostagem; Cobertura viva; Fitopatologia; Planta invasora; Coffee; Alternative agriculture; Planting density; Spacing; Cultural practices; Cultural methods; Phytopathology; Plant diseases; Nematodes; Revegetation.; Agricultura Alternativa; Ácaro; Adubo Orgânico; Agricultura Orgânica; Biofertilizante; Arborização; Café; Compostagem; Cobertura Morta; Comercialização; Densidade de Plantio; Doença de Planta; Esterco; Erva Daninha; Nematóide; Matéria Orgânica; Nutriente; Praga; Pratica Cultural; Solo; Sombreamento.; Acarus; Lumbricidae; Nematoda; Composting; Biofertilizers; Organic fertilizers; Organic matter; Plant pathology; Mulching; Nutrients; Soil; Vermicomposting.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/622689

Nova recomendacao de espacamento para o cultivo do Amendoim.
Provedor de dados: 14
Autores: SANTOS, R. C.; AZEVEDO, D. M. P. de; ALVES, N. S.; SANTOS, V. F. dos.
A influencia de quatro diferentes espacamentos sobre o redimento de genotipos de amendoim foi estudada durante dois anos,com o objetivo de seremendar ao agricultor novas modalidades de plantio que permitam maior producao.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Genotipos; Densidade populacional; Brasil; Paraiba; Itabaiana; Groundnut; Genotypes; Planting density; Spacing.; Amendoim; Arachis Hypogaea; Espaçamento.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269817

ダイズ品種における着莢数のプロット内変異と栽植密度
Provedor de dados: 19
Autores: Miura, Hideho; Gemma, Takuma.
Palavras-chave: Soybean; Planting density; Yield component; Branch; Phenotypic plasticity; ダイズ; 栽植密度; 収量構成要素; 分枝; 表現型可変性.
Ano: 1990
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2311

ダイズの子実収量に及ぼす分枝切除効果と栽植様式・密度
Provedor de dados: 19
Autores: Miura, Hideho; Wijeyatungam, Kulathungam; Gemma, Takuma; 三浦, 秀穂; ウイジェヤトゥンガム, K.; 源馬, 琢磨.
Palavras-chave: Soybean; Planting pattern; Planting density; Branch; Seed yield; ダイズ; 栽植様式; 栽植密度; 分枝; 子実収量.
Ano: 1988
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1548

Energy capacity of black wattle wood and bark in different spacing plantations
Provedor de dados: 190
Autores: Eloy, Elder; Silva, Dimas Agostinho da; Caron, Braulio Otomar; Souza, Velci Queiróz de.
The study aimed at the energetic description of wood and bark biomass of Acacia mearnsii De Wild. in two spacing plantations: 2.0 m × 3.0 m × 1.0 m and 1.5 m, during 36 months after the planting. The experiment was conducted in the municipality of Frederico Westphalen, state of Rio Grande do Sul, Brazil. Biomass (BIO), calorific value, basic density, ash content, volatile matter and fixed carbon content and energy density (ED) of wood and bark were determined. The smallest spacing plantation presented the highest production per unit area of BIO and ED of wood and bark.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acacia mearnsii De Wild.; Planting density; Energy resource wood Tecnologia e Utilização de Produtos Florestais - Energia de biomassa florestal Acacia mearnsii De Wild; Densidade de plantio; Recursos dendroenergéticos.
Ano: 2015
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/606

Teores foliares de fósforo e zinco, produtividade e crescimento de café irrigado
Provedor de dados: 86
Autores: Scalco,Myriane Stella; Alvarenga,Livia Alves; Guimarães,Rubens José; Dominghetti,Anderson Willian; Colombo,Alberto; Assis,Gleice Aparecida; Abreu,Giselle Figueiredo.
O objetivo deste trabalho foi avaliar os efeitos da irrigação sobre as concentrações foliares de P e Zn e sobre a produtividade e o crescimento do cafeeiro (Coffea arabica), cultivado em plantio tradicional e adensado. Utilizou-se o delineamento experimental de blocos ao acaso, em arranjo de parcelas subdivididas, com quatro repetições. As parcelas corresponderam às densidades de plantio (3.333 e 10.000 plantas ha-1), e as subparcelas corresponderam às lâminas d'água, aplicadas por quatro manejos de irrigação: início da irrigação, quando a tensão d´água no solo à profundidade de 0,25 m atingia valores próximos a 20 ou 60 kPa; turno fixo de irrigação (três vezes por semana), de acordo com o balanço hídrico climatológico; e testemunha sem irrigação. Em 2009,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica; Densidade de plantio; Estado nutricional; Fertirrigação; Interação entre nutrientes; Coffea arabica; Planting density; Nutritional status; Fertigation; Nutrient interaction.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000200095

Agronomical performance of 'Piemonte' mandarin grafted on several rootstocks in the Brazilian Coastal Tablelands
Provedor de dados: 86
Autores: Carvalho,Hélio Wilson Lemos de; Martins,Carlos Roberto; Teodoro,Adenir Vieira; Soares Filho,Walter dos Santos; Passos,Orlando Sampaio.
Abstract The objective of this work was to evaluate the agronomical performance of 'Piemonte' mandarin grafted on 11 rootstocks grown under the edaphoclimatic conditions of the Coastal Tablelands, in the state of Sergipe, Brazil. The following combined agronomical parameters were evaluated: vegetative growth, abundance of phytophagous mites, plant yield, drought tolerance, and physicochemical quality of fruit. 'Piemonte' mandarin had the best productive performance when grafted on 'Santa Cruz Rangpur' lime, 'Red Rough' lemon, 'Sunki Tropical' mandarin, and 'Riverside' citrandarin, and it was more tolerant to drought when grafted on 'Santa Cruz Rangpur' lime and on the LVK x LCR-010 hybrid. Rootstocks did not affect pest population levels. 'Piemonte'...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus; Cohesive soils; Fruit quality; Planting density; Phytophagous mites; Yield efficiency.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016001101830

Tart Cherry Yield and Economic Response to Alternative Planting Densities
Provedor de dados: 31
Autores: Me-Nsope,   Nathalie Mongue.
The study investigates the economic response of tart cherry yields to planting density using an unbalanced longitudinal yield data from tart cherry orchards in Northwest Michigan. The relationship between tart cherry yield and tree age is specified as a linear spline function and planting density interacts with tree age. A random effect method, treating block as random, is used to estimate the spline function. Stochastic simulation was used to estimate the mean and variance of the product of two random variables (price and yield), and the coefficient of variation was used as a measure of how much risk is involved in corn/soybeans production relative to tart cherries production. Estimates of the variance provided the discount factor (10%) and with yields...
Tipo: Thesis or Dissertation
Palavras-chave: Tart cherries; Pricing; Planting density; Crop Production/Industries; Risk and Uncertainty; D4; D24; L11.
Ano: 2009
URL: http://purl.umn.edu/54502

Partial Factor Productivity, Agronomic Efficiency, and Economic Analyses of Maize in Wheat-Maize Cropping System in Pakistan
Provedor de dados: 31
Autores: Amanullah; Almas,   Lal K.
Getting maximum benefits from cereals do not lie in reducing N-rate and its number of splits but lowering cost per unit cereal production through higher yields. Field experiments were conducted on maize (Zea mays L.) at the New Developmental research Farm of NWFP (Northwest Frontier Province) Agricultural University Peshawar-Pakistan during 2002-03 and 2003-04 in order to investigate effects of variable rates of N and its time of application on the partial factor productivity (PFPN), agronomic efficiency (AEN), net returns (NR), value-cost ratio (VCR) and marginal returns (MR). The 2 x 3 x 6 factorial experiment was designed having two plant densities (D1 = 60,000 and D2 = 100,000 plants ha-1) and three N levels (N1 = 60, N2 = 120 and N3 = 180 kg N ha-1)...
Tipo: Conference Paper or Presentation
Palavras-chave: Maize; Zea mays L.; Planting density; Nitrogen; Agronomic efficiency; Economics; Crop Production/Industries; Farm Management; International Development; Production Economics; Productivity Analysis.
Ano: 2009
URL: http://purl.umn.edu/46747

Performance of onion cultivars as a function of spacing between plants
Provedor de dados: 91
Autores: Santos,Jandeilson P. dos; Grangeiro,Leilson C.; Sousa,Valdívia de F. L. de; Gonçalves,Francisco das C.; Franca,Francisco D. de; Cordeiro,Carlos J. X.
ABSTRACT The objective of this study was to evaluate the performance of onion cultivars as a function of the spacing between plants. The experimental design was a complete randomized block in a 3 x 4 factorial scheme, with four replicates. The treatments were composed of the combination between three onion cultivars (Vale Ouro IPA 11, Serena and Rio das Antas) and four plant spacings (3, 6, 8 and 10 cm). The evaluated characteristics were total, marketable and unmarketable yield of bulbs, percentages of bulbs in classes 1, 2, 3 and 4, bulb mean weight, bulb dry weight. In onion cultivation, the cultivars Rio das Antas and Serena are the most indicated, with the highest marketable yields at 6 and 3 cm spacings between plants, respectively. The cultivar Vale...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa L.; Planting density; Classification of bulbs; Yield.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300212

The effect of planting density on ‘BRS Rubimel’ peach trained as a “Y-shaped” system
Provedor de dados: 94
Autores: Souza,André Luiz Kulkamp de; Souza,Edson Luiz de; Camargo,Samila Silva; Feldberg,Nelson Pires; Pasa,Mateus da Silveira; Bender,Angélica.
Abstract  The densification of orchards has become a viable alternative for producers seeking a greater use of current area, as well as greater profitability. In this sense, the spacing and training system to be used in the peach tree planting are extremely important to facilitate orchard management and, above all, to maximize tree yield. Based on this, the present research aimed to evaluate the possibility of orchard densification and the use of different numbers of main scaffolds to recommend the best way of training and spacing the ‘BRS Rubimel’ peach cultivar. The planting was carried out in 2010, in the city of Fraiburgo - SC, and eight treatments with different spacings between the plants in the rows and number of scaffolds were evaluated during four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus persica (L.) Batsch; Tree training; Spacing; Planting density.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000200703

Production efficiency and quality in seedlings of the ‘Pera’ orange interstocked with nucellar plantlet tissue
Provedor de dados: 124
Autores: Sousa,Monica Cardoso de; Marinho,Cláudia Sales; Silva,Mírian Peixoto Soares; Carvalho,Waleska Soares Gomes; Amaral,Bruno Dias.
ABSTRACT Production of interstocked seedlings of the ‘Pera’ orange can be achieved through inarching of a rootstock on nucellar seedlings, with the subsequent grafting of a new scion. By this process, the interstocked seedling can be obtained in less time, but production efficiency is low, and no data on quality standards are available. The aim of this study was to evaluate the quality, time and production efficiency of ‘Pera’ orange (PO) seedlings interstocked with two types of nucellar plantlet tissue, using the ‘Flying Dragon’ trifoliate as rootstock. The experimental design was of randomised blocks, with four treatments, six replications and ten plants per plot. For the technique employed, nucellar plantlets of the ‘Seleta’ orange (SO) or Rangpur Lime...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Planting density; Citrus sinensis (L.) Osbeck; Poncirus trifoliata var; Monstrosa; Overcoming incompatibility.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000100053

Agronomic studies of corn during 1981
Provedor de dados: 106
Autores: Supot Faungfupong; Porn Rungchang; Jarong Rungchuang; Yuanjai Onriabroy.
1 ill., 10 tables
Palavras-chave: Corn; Maize; Agronomic studies; Seed vigor; Variety trials; Yields; Quality; Agronomic characters; Systemic fungicides; Downy mildew; Planting density; Yields; ข้าวโพด; ความหนาแน่นของประชากร; ความแข็งแรงของเมล็ดพันธุ์; การทดสอบผลผลิต; สารกำจัดเชื้อรา.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4059

Coffee crop coefficient for precision irrigation based on leaf area index
Provedor de dados: 53
Autores: Pereira,Antonio Roberto; Camargo,Marcelo Bento Paes de; Villa Nova,Nilson Augusto.
Crop coefficient (Kc) for coffee plantations was found to be linearly related to the leaf area index (L) up to 3, i.e., Kc = b L. The basic assumption is that for irrigated trees the water use per unit leaf area (ET LA) is equal to the reference evapotranspiration (ETo) expressed also on a unit leaf area basis of the reference surface (ET LA = ETo/Lo). As recommended by FAO-56 the leaf area index (Lo) for the hypothetical reference surface (grass) is equal to 2.88, then the most likely value is b = Lo-1 = 2.88-1 = 0.347. However, for L &amp;gt; 3 (completely covered ground surface) Kc decreased from a peak value (~1.05) tending to an asymptotic low value around 0.7 for L &amp;gt; 6, but the linear model gives unrealistic Kc estimates; tentatively the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arábica L.; Reference evapotranspiration; Soil water balance; Planting density.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400030

Early performance of ‘Kampai’ and ‘Rubimel’ peach on 3 training systems
Provedor de dados: 53
Autores: Pasa,Mateus da Silveira; Fachinello,José Carlos; Schmitz,Juliano Dutra; Rosa Júnior,Horacy Fagundes da; Franceschi,Émerson de; Carra,Bruno; Giovanaz,Marcos Antônio; Silva,Carina Pereira da.
ABSTRACT The aim of this study was to examine the early performance of ‘Kampai’ and ‘Rubimel’ peach on 3 training systems. The study was conducted between 2010 and 2013. Treatments were the training systems ‘Ypsilon’, Central Leader, and Open Center, arranged in a randomized complete block design. Assessed parameters were production per tree, fruit weight, yield, fruit firmness, and soluble solids. The early yield and economic return are greater in Central Leader training system for both cultivars. Besides, training system does not influence fruit quality attributes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus persica; Yield; Precocity; Planting density.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000100082

Ecophysiological factors underpinning productivity of Hevea brasiliensis
Provedor de dados: 61
Autores: Rodrigo,V.H.L.
High land productivity is a must for any commercial cultivation including Hevea brasiliensis (rubber). Also, the high demand for natural rubber has placed great pressure on expanding rubber cultivation to new and non-traditional areas. Understanding the ecophysiological principles behind the measures of productivity improvements is vital for wide application of these measures and to assess their sustainability. This review discusses the ecophysiological principles and tools used, along with the measures taken, to address productivity needs in terms of: genotype selection, determination of optimum planting density, and establishment of intercropping systems. Breeding for high yields and selection of suitable genotypes for different growing conditions are a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rubber; Genotype selection; Intercropping; Planting density; Physiology.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400002