Citas bibligráficas
Ramirez, A., (1998). Ensayo comparativo de variedades locales e introducidas de algodón de la especie Gossvpium Barbadense L. en la localidad de Juan Guerra - San Martín [Tesis, Universidad Nacional de San Martín. Fondo Editorial]. http://hdl.handle.net/11458/2230
Ramirez, A., Ensayo comparativo de variedades locales e introducidas de algodón de la especie Gossvpium Barbadense L. en la localidad de Juan Guerra - San Martín [Tesis]. PE: Universidad Nacional de San Martín. Fondo Editorial; 1998. http://hdl.handle.net/11458/2230
@misc{renati/1058366,
title = "Ensayo comparativo de variedades locales e introducidas de algodón de la especie Gossvpium Barbadense L. en la localidad de Juan Guerra - San Martín",
author = "Ramirez Veintimilla, Alfonso Segundo",
publisher = "Universidad Nacional de San Martín. Fondo Editorial",
year = "1998"
}
This dissertation was carried out in the field of the Experimental Agricultural Station "El Porvenir"; In the valley of the Low May. Province and Region of San Martin (Peru), geographically characterized by the following coordinates: West length with 76º26 ", 06º34" south latitude and 356 meters above sea level, with the objective of determining one or more superior varieties in performance and Characteristics adaptable to the conditions of our area and perform the economic analysis of the best treatments. The work was carried out in the month of May of 1994 to January of 1995. The occurrence of the fourth true leaf, data on the plant leaf form, crown and stem diameter, production and precocity characterization, growth and development phases, fiber and seed characteristics, yield and reaction were evaluated. To pests and diseases in rough cottons, using the statistical design Complete Block Randomized (BCR) with eight treatments and four replicates, whose results were analyzed through the analysis of variance and the multiple test of Duncan. The experimental soil was of residual origin with a flat and mechanized surface, with texture clay slightly reactive sandy (pH 7.3) organic matter content (4.2%) average total nitrogen (0.18%), phosphorus (5.4%) and normal potassium 206.7 ppm). The sowing spacing was 1.00 m between shocks depositing 5-8 seeds per blow and 1.50 m between furrows in moist soil. The fertilization was not necessary because previously cowpeas were planted in the soil where the cotton was planted and receiving an average rainfall during the vegetative period of 106.4 mm and average t ° of 254 ° C. From the results obtained according to the statistical analysis it is concluded that there were statistical differences with the treatments in the yield of cotton in branch, due to the differences that have interacted with the ecological medium whose yields fluctuated between 1461.39 and 822.78 kg / ha corresponding to The treatments T8 (ASPERO FIBER PARIO CLEAR) and T6 (8852-2 AP) the major and minor respectively. The treatments T8 (ASPERO FIBER PARIO CLEAR) T1 (PS-2 SUB PIMA-2) and T4 (YELLOW FIBER) generally for their greater ability in performance only the treatment T8 surpassed to the other treatments. According to the benefit / cost ratio a deficit value was determined for the four best treatments due to the high cost of production.
Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons