Hola Reptifauna. Vi que tiene las puntas de las hojas secas y me parece que le falta Potasio y Magnesio y si no son esos 2 Macro elementos parece que les agarro viento seco , comenza poniendole Nitrato de Potasio y Sulfato de Maganesio para que absorba el Potasio y aumenta el riego para ver si las hojas nuevas salen con color mas verde obscuro y mas brillantes. La falta de Potasio primero comienza con necrosis en la puntas de las hojas y despues si no se fertiliza con nitrato de Potasio las hojas se ponen como en esta foto. Saludos. Erwin.
Erwin, Como sabes tanto sobre los fertilizantes que necesita una palmera solo viendo sus hojas y demás, de verdad lo admiro y me gustaría mucho aprender eso, algún libro que leer la algún sitio donde uno puedo formarse un poquillo? Gracias
Buenas @Erwin a riesgo de equivocarme: Mi Roystonea esta así del viento frio, no del viento seco o falta de algún elemento, apenas suben las temperaturas luce cada año como debería y tiene un aspecto totalmente sano.
Tienes Reptifauna, está un poco desflecada... Pero si que está bonita... Y el tronquito ya empieza a molar También tengo otras dos más que las pasé al suelo hace casi un año y no crecieron apenas, las compré más pequeña. Yo creo que no las regue lo suficiente el año pasado y además le salieron hongos pero ya las estoy tratando y espero que este verano despunten http://subeimagen.infojardin.com/suba-fotos/images/5e9cb3cccea63.jpg La otra esta igual, solo con algunas hoja menos que se las quite por los hongos. Por lo menos se está poniendo de un verde bonito.
Pregunta de novato... Viendo la Roystonea, parece como si estuviese un poco inclinada, soleis poner tutores en estos casos? Tengo una Syagrus que puede tener más o menos misma inclinación y me preguntaba si ponerle tutores..
Hola Reptifauna. Hay un libro en ingles de carencias en PALMERAS T. K. Broschat, UF/IFAS http://edis.ifas.ufl.edu/ep269 podes verlo en este vinculo de Internet de la Universidad de Florida. Tengo que buscar en mis carpetas de Fertilizantes otras paginas de Internet las tengo en 3 Portadiscos de 3 terabites y me llevara un tiempito encontrala en alguano de los 3 portadiscos. Potassium Deficiency in Palms Timothy K. Broschat2 Symptoms Symptoms of potassium (K) deficiency vary among species, but always appear first on the oldest leaves. Older leaflets of some palms such as Dictyosperma album (hurricane palm) are mottled with yellowish spots that are translucent when viewed from below (Figure 1). In other palms such as Dypsis cabadae (cabada palm), Howea spp. (kentia palms) and Roystonea spp. (royal palms), symptoms appear on older leaves as marginal or tip necrosis with little or no yellowish spotting present (Figures 2 and 3). The leaflets in Roystonea, Dypsis, and other pinnate-leaved species showing marginal or tip necrosis often appear withered and frizzled. Figure 1. Older K-deficient leaf of Dictyosperma album showing translucent yellow-orange spotting when held up to the light. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 2. Potassium-deficient older leaf of Dypsis cabadae showing necrosis and curling of leaflet tips. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 3. Potassium-deficient older leaf of Roystonea regia showing leaflet tip necrosis and curling. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] In fan palms such as Livistona chinensis (Chinese fan palm), Corypha spp. (talipot palm), Washingtonia spp. (Washington palms), and Bismarckia nobilis (Bismarck palm), necrosis is not marginal, but is confined largely to tips of the leaflets (Figures 4 and 5). In Phoenix roebelenii (pygmy date palm), the distal parts of the oldest leaves are typically orange with leaflet tips becoming necrotic (Figure 6). The rachis and petiole of the leaves usually remains green, however, and the orange and green are not sharply delimited as with magnesium (Mg) deficiency. This pattern of discoloration holds for most palm species that show discoloration as a symptom. Figure 4. Potassium-deficient older leaf of Washingtonia robusta showing extensive leaflet tip necrosis. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 5. Potassium-deficient older leaf of Livistona chinensis showing leaf discoloration. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 6. Potassium deficiency of Phoenix roebelenii. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] In Phoenix canariensis (Canary Island date palm), leaflets show fine (1–2 mm) necrotic and translucent yellow spotting and extensive tip necrosis. These necrotic leaflet tips in most Phoenix spp. are brittle and often break off, leaving the margins of affected leaves irregular. In Caryota spp. (fishtail palms) and Arenga spp. (sugar palms), chlorotic mottling is minimal or non-existent, but early symptoms appear as irregular necrotic spotting within the leaflets (Figures 7 and . In most other palms, including Cocos nucifera (coconut palm), Elaeis guineensis (African oil palm), Dypsis lutescens (areca palm), Chamaerops humilis (European fan palm) Hyophorbe verschafeltii (spindle palm), and others, early symptoms appear as translucent yellow or orange spotting on the leaflets and may be accompanied by necrotic spotting as well. As the deficiency progresses, marginal and tip necrosis will also be present. The most severely affected leaves or leaflets will be completely necrotic and frizzled except for the base of the leaflets and the rachis (Figures 9–11). Figure 7. Potassium-deficient older leaf of Arenga sp. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 8. Potassium-deficient older leaf of Caryota mitis. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 9. Potassium-deficient older leaf of Dypsis lutescens showing leaf discoloration and extensive necrosis of the leaflet margins and tips. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 10. Potassium-deficient older leaf of Chamaerops humilis showing translucent orange and necrotic spotting. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 11. Potassium deficiency symptoms on older leaf of Cocos nucifera showing translucent yellow-orange spotting. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] For all palms, symptoms decrease in severity from tip to base of a single leaf and from old to new leaves within the canopy (Figures 12 and 13). Because K deficiency causes premature senescence of older palm leaves, the severity of this deficiency is best measured not by the number of discolored and symptomatic leaves, but rather by the number of living leaves in the canopy. In severe cases, the canopy will contain only a few leaves, all of which will be chlorotic, frizzled, and stunted (Figures 14 and 15). The trunk will begin to taper (pencil-pointing) and death of the palm often follows. Figure 12. Potassium-deficient older leaf of Cocos nucifera showing progression of symptoms from the base to the tip of the leaf. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 13. Potassium-deficient Hyophorbe verschafeltii showing the increase in severity of symptoms from new to old leaves. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 14. Late-stage K deficiency in Cocos nucifera showing small chlorotic and necrotic new leaves and trunk tapering. This palm died shortly after the photo was taken. Credit: T. K. Broschat, UF/IFAS [Click thumbnail to enlarge.] Figure 15. Late stage K deficiency in Roystonea regia showing small necrotic leaves and tapering trunk (pencil-pointing) Credit: T. K. Broschat, UF/IFAS Trata de conseguir el libro de T. K. Broschat , para mi es el mejor , pero tengo otra informacion con fotos de la falta de nutrientes que tengo que buscar en los 3 portadiscos de 3 terabites y es tambien muy completa. Saludos . Erwin.
