“Efecto de la aplicación de ceniza y extracto de barbasco para la producción de algodón nativo áspero pardo en las comunidades de solo y San Juan del río Maryo-San Martín”

• Autor: Saldaña Cotrina, Lidmer
• Formato: tesis de grado
• Fecha de Publicación: 2003
• Institución: Universidad Nacional de San Martin - Tarapoto
• Repositorio: UNSM-Institucional
• Lenguaje: español
• OAI Identifier: oai:repositorio.unsm.edu.pe:11458/777
• Enlace del recurso: http://hdl.handle.net/11458/777
• Nivel de acceso: acceso abierto
• Materia: Efecto; aplicación; ceniza; extracto; barbasco; para; producción; algodón; nativo; áspero; pardo; comunidades; solo; Juan; río; Maryo

With the purpose to find an alternative to improve the organic production of brown creole cotton (Gossypium barbadense L.), we carried out a trial applying barbasco extract (Lonchocarpus nicou L.) and ashes of sorne forest species for treatment of seeds and on the definitiva fields in the Bajo Mayo region of the San Martín region. The cotton seed of the variety Peruvian creole was obtained trough the previous campaign on fields cultivated by the farmers for this experience; it was installed on ground with soil of franco structure which is fit for agriculture for its balance between sand and clay (Community of Solo) and franco arcilloso, a soil with more clay (Community of San Juan), there are presenting a lightly alkaline and respectively alkaline pH. The sowing was carried out in small holes with a distance of 2.00 m by 2.00 m between the files and the holes at the rate of four seed per hole for planting using the block design completely at random (D.B.C.A) with three treatments and four repetitions in each community. Treatments with these organic products with biocide properties like the barbasco extract in a dose of 11 of extract for each kilo of cotton seed (T 1), with ashes of forest species in adose of 0.5 kg for each kg of cotton seed ( T 2) and a treatment without application as witness (T 3); these applications have been carried out on the seed before sewing and the applications on the definitiva field have been carried out in the following way: The first barbasco extract application on the definitiva field 35 days after sowing and the second application in the moment of blossoming, 100 days after sowing. The first application of sift ashes 35 days after sowing and the second application in the moment of blossoming, 100 days after sowing. The best yield has been obtained on T2 (with sift ashes) with 765.13 kg/ha of cotton with seed and the treatment T 1 (barbasco extract) with 692.25 kg/ha in comparison with the witness with 632.94 kg/ha. Comparing with the treatment with barbasco and the witness, the best treatment was T 2 (sift ashes) obtaining the best yield in kg/ha of cotton with seed.