|
|
|
|
|
| Soriano Espinosa, Graciela Belem. |
| El objetivo del presente estudio fue determinar el efecto de fertilización con N, P y K, en el crecimiento y la calidad de planta de Pinus patula y Pinus devoniana. Las plantas fueron cultivadas por un periodo de ocho meses, en contenedores de 120 cm3, usando como sustrato una mezcla de perlita, vermiculita y musgo turba en proporción 20:20:60. El experimento consistió en un diseño factorial 33 completamente al azar con tres repeticiones. Los factores probados fueron N, P y K cada uno de ellos con tres niveles. Los niveles de N fueron 0, 100 y 200 ppm; los de P, 0, 60 y 125 ppm, los de K 0,75 y 150 ppm. Las variables morfológicas evaluadas fueron; altura, diámetro, peso seco del follaje, peso seco de tallo y peso seco de raíz. Los índices de calidad de... |
|
Palavras-chave: Fertilización química; Vivero forestal; Pino; Indice de calidad de Dickson; Variables morfológicas; Chemical fertilization; Forest nursery; Pine; Dickson quality index; Morphologic variables; Maestría; Forestal. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/394 |
| |
|
|
| Soriano Espinosa, Graciela Belem. |
| El objetivo del presente estudio fue determinar el efecto de fertilización con N, P y K, en el crecimiento y la calidad de planta de Pinus patula y Pinus devoniana. Las plantas fueron cultivadas por un periodo de ocho meses, en contenedores de 120 cm3, usando como sustrato una mezcla de perlita, vermiculita y musgo turba en proporción 20:20:60. El experimento consistió en un diseño factorial 33 completamente al azar con tres repeticiones. Los factores probados fueron N, P y K cada uno de ellos con tres niveles. Los niveles de N fueron 0, 100 y 200 ppm; los de P, 0, 60 y 125 ppm, los de K 0,75 y 150 ppm. Las variables morfológicas evaluadas fueron; altura, diámetro, peso seco del follaje, peso seco de tallo y peso seco de raíz. Los índices de calidad de... |
|
Palavras-chave: Fertilización química; Vivero forestal; Pino; Indice de calidad de Dickson; Variables morfológicas; Chemical fertilization; Forest nursery; Pine; Dickson quality index; Morphologic variables; Maestría; Forestal. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/394 |
| |
|
| |
|
|
| Smiderle,Oscar José; das Graças Souza,Aline; Araújo Montenegro,Raiovane; Komuro Moriyama,Thiago. |
| Abstract The objective was to investígate the effect of substrate compositions with and without the addition of controlled release fertilizer (CRF) and to determine the correlations between the morphological characteristics of Agonandra brasiliensis. The variables studied were: shoot height, collet diameter, increase of height of shoot and collet diameter, shoot dry weight, root dry weight, total dry weight, the relation between the dry matter weight of the shoot and the dry matter weight of the roots, the relation between shoot height and collet diameter, the relation between shoot and root dry weight, and Dickson quality index. The results of the total dry weight of the ivory-wood plants allowed to infer a positive influence of the addition of CRF in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ivory wood; Forest nursery; Dickson index; NPK. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000300258 |
| |
|
|
| Malavasi,Ubirajara Contro; Malavasi,Marlene de Matos. |
| Enterolobium contortisiliquum (Vell.) Morong. is a Mimosaceae tropical tree species recommended for heterogeneous reforestation of degraded tropical areas. "Timburi" seeds present low germination due to the high degree of seed dormancy. Different methods to overcome seed dormancy was compared: sanding, sanding followed by 24 hours water (25ºC) soaking, imbibition in boiling water followed by exposure to water at room temperature (28ºC), and concentrated sulfuric acid (5, 15, 30, 60, 120 or 180 minutes) followed by washing with tap water. All seeds were germinated in rolled towels at 25ºC and 12 hours photoperiod. Total germination, first count of germination test and germination velocity index were recorded. Mechanical scarification (sanding), chemical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dormancy; Forest nursery; Germination; Seed. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000600003 |
| |
|
|
| Gacitúa A,Sandra; Valiente F,Carolina; Díaz P,Katy; Hernández C,José; Uribe M,Matilde; Sanfuentes V,Eugenio. |
| The Macrophomina phaseolina (Tassi) Goid. fungus, causal agent of charcoal root rot, is considered one of the most important pathogens in forest nurseries. Recent studies in Chile have verified the antagonistic capacity of diverse bacterial isolates against M. phaseolina in vitro as well as in field testing. The objectives of this study were to identify Bacillus isolates and establish the mechanisms of antagonism against M. phaseolina. Isolates were identified with the bioMérieux biochemical kit. Tests were done in vitro and consisted in determining the production of volatile metabolites, siderophores, and the effect of different culture temperatures (20, 25, 30, and 35 °C) on the production of diffusible metabolites and inhibition of mycelial growth of... |
| Tipo: Journal article |
Palavras-chave: Biocontrol; Forest nursery. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400007 |
| |
|
|
|
