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| Registros recuperados: 73 | |
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| Silveira, Rafaela da; Silva, Gilson Fernandes da; Binoti, Daniel Henrique Breda; Manhães, Leticia da Paschoa; Gonçalves, Anny Francielly Ataide; Aragão, Mariana de Aquino. |
| The silvicultural and economic potential of paricá (Schizolobium amazonicum) has encouraged the expansion of this crop, mainly in the northern region of the country, provoking the need for studies on the species. The objective of this study was to estimate paricá production in Paragominas region, Para State, Brazil, at 5, 6 and 7 years, in three classes of productivity considering five plant arrangements, being identified the main costs of production, in addition to those most affected by plant arrangements. The volumetric estimation was obtained by modeling in population level and the analysis of the costs, through the methodology of the operational cost. It was possible to infer that the arrangement of plants 3 m x 2 m was superior in volume, compared to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Operating costs; Spacing; Schizolobium amazonicum Engenharia Florestal Custos operacionais; Espaçamento; Schizolobium amazonicum. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1508 |
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| Pasa,Mateus da Silveira; Fachinello,José Carlos; Rosa Júnior,Horacy Fagundes da; Franceschi,Émerson De; Schmitz,Juliano Dutra; Souza,André Luiz Kulkamp de. |
| The objective of this work was to evaluate the performance of 'Rocha' and 'Santa Maria' pears at two planting densities. The experiment was carried out during the 2011/2012, 2012/2013, and 2013/2014 growing seasons, in one-year-old orchards (2011/2012) of 'Rocha' and 'Santa Maria' pears, trained in a central-leader system and planted in two densities (2,000 and 4,000 trees per hectare). The assessed parameters were: production per hectare, production per tree, yield efficiency, number of fruit per tree, average fruit weight, trunk diameter increment, fruit firmness, and soluble solid contents. The cumulative yield of 'Rocha' is greater at the higher planting density, whereas the yield efficiency of 'Santa Maria' increases at the lower planting density, as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pyrus communis; Fruit quality; Spacing; Yield.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000200126 |
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| Assis,Gleice Aparecida; Assis,Franscinely Aparecida; Scalco,Myriane Stella; Parolin,Francisco José Toloza; Fidelis,Iraci; Moraes,Jair Campos; Guimarães,Rubens José. |
| The objective of this work was to evaluate the effect of different drip irrigation regimes and planting densities on the incidence of the leaf miner, Leucoptera coffeella, in arabica coffee plants for one year. The experiment was carried out in 2008, in a complete randomized block design, in a split-plot in time arrangement, with four replicates. The treatments consisted of four drip irrigation regimes - soil water balance, irrigations at 20 and 60 kPa soil tensions, and a nonirrigated treatment -, which were distributed at three plant densities: 2, 500, 5, 000, and 10, 000 plants per hectare. The evaluations were made on a monthly basis between January and December 2008. The highest pest occurrence period was from August to November, a season with low-air... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Leucoptera coffeella; Irrigation; Spacing; Weather factors. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000200002 |
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| Duarte,Tiago C.; Cruz,Simério C. S.; Soares,Guilherme F.; Sena Júnior,Darly G. de; Machado,Carla G.. |
| ABSTRACT The aim with this study was to evaluate the effects of single- and twin-row spatial arrangements associated with different doses of fertilization on soybean yield and its components. The experiment was carried out at Federal University of Goiás, Campus of Jataí, in a split-plot randomized block design with 10 treatments and four replicates. Each plot corresponded to a dose of P and K fertilization (0, 50, 100, 200 and 400% of the recommended dose) and the subplots to two types of spatial arrangements: single and twin rows. The yield components evaluated were plant final population, number of pods and seeds per plant, number of seeds per pod, weight of a thousand grains and yield. The increase in fertilization dose, even at doses two and four times... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max (L.); Twin rows; Spacing; Phosphorus; Potassium. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001100960 |
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| Martins,Thales G. V.; Rocha,Maria F. V.; Nieri,Erick M.; Melo,Lucas A. de; Silva,Maria L. de S.; Silva,Diana S. N. da. |
| ABSTRACT The objective of this study was to quantify the accumulation of nutrients in the bark of four eucalyptus clones at 12 years-of-age, planted at different population densities, and the values were extrapolated to kg of nutrients per hectare. The experiment used randomized blocks in a 4 × 3 factorial design and three replications, with four Eucalyptus clones (2486, I182, I144, and GG100) planted at three population densities (416, 833, and 1111 trees ha-1). The rigorous cubage of three trees per plot was performed by collecting discs of bark at the following heights: diameter at breast height (1.30 m), 0, 25, 50, 75, and 100% of the commercial height of the stem. The bark discs of each tree were grouped and used to determine N, P, K, Ca, Mg, and S... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compartmentalization; Nutrient cycling; Spacing. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100040 |
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| 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 |
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| Silva,Tiago Santos; Silva,Paulo Sérgio Lima e; Braga,Jéfferson Dantas; Silveira,Lindomar Maria da; Sousa,Roberto Pequeno de. |
| In Mata Fresca, an area located on the border of the states of Rio Grande do Norte and Ceará, in Brazil, small farmers have a source of income from the production of cassava roots, using planting densities of around 5,000 plants ha-1. This procedure might be helping to limit higher yields of the roots, since some studies have shown that it is possible to obtain higher yields of cassava using higher densities. The objective of this study was to evaluate the root yield and other characteristics of the cassava, as a response to planting density. The Vermelhinha cultivar was submitted to planting densities of from 5,000 to 21,000 plants ha-1, at intervals of 2,000 plants ha-1, in an experiment under irrigation. A completely randomized block design with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Spacing; Plant populations. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000200014 |
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| Siqueira,Célia Lúcia; Pereira,Marlon Cristian Toledo; Nietsche,Silvia; Xavier,Adelica Aparecida; Mendes,Athos Henrique; Xavier,Helisson Robert Araújo; Guimarães,Railton de Souza; Lacerda,Danilo Reis; Santos,Silvânio Rodrigues dos. |
| ABSTRACT Increased planting density, different types of thinning management, and the use of beneficial microorganisms have been adopted as strategic tools in the effort to increase crop yields in a sustainable manner. This investigation evaluated the growth and production of ‘Prata Anã Gorutuba’ banana ( Musa spp., AAB) under different plant densities during two production cycles in the semiarid region of Minas Gerais, Brazil. Micropropagated plantlets were also inoculated with endophytic bacteria and cultivated as part of two mat management strategies. Planting density varied between 1,680 and 3,920 plant ha–1. During the experiment, water was less than optimal because of rationing due to drought in the region. Under field conditions, there was no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Bacillus sp.; Plant growth-promoting bacteria (PGPB); Spacing; Hydric stress. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000100602 |
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| Registros recuperados: 73 | |
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