Citas bibligráficas
Arevalo, L., (2018). Respuesta fisiológica del cafeto al abonamiento con relación a la severidad del daño de la roya amarilla en Lamas [Tesis, Universidad Nacional de San Martín. Fondo Editorial]. http://hdl.handle.net/11458/2925
Arevalo, L., Respuesta fisiológica del cafeto al abonamiento con relación a la severidad del daño de la roya amarilla en Lamas [Tesis]. PE: Universidad Nacional de San Martín. Fondo Editorial; 2018. http://hdl.handle.net/11458/2925
@phdthesis{renati/1059620,
title = "Respuesta fisiológica del cafeto al abonamiento con relación a la severidad del daño de la roya amarilla en Lamas",
author = "Arevalo Lopez, Luis Alberto",
publisher = "Universidad Nacional de San Martín. Fondo Editorial",
year = "2018"
}
In Peru, coffee is the main agricultural export product, reaching in 2011 a sales amount of US $1.5 billion, a historical figure in the agricultural sector. However, in 2012, leaf rust appeared with great negative effects on cultivated areas and productivity, with a devastating impact on the sector in 2013 when exports fell to US $700 million. In the region of San Martin, coffee is a strong support to the regional economy due to the coffee farming of approximately 100.927 hectares, which involves directly 44.857 producers, with a universe of approximately 224.285 people dependent on this activity. The objective of the research was to study the effects of fertilization on the severity of leaf rust, in the yield and the sensory analysis of the coffee grains, as one of the most important productive activities in the region in economic, social and environmental fields. The study was developed in the district of Alonso de Alvarado, Province of Lamas, San Martin region. Coffee plantations, Pache variety, of different ages was selected and on them the treatments were distributed in a complete random blocks design in factorial arrangement with 3 repetitions. The treatments were composed of two factors, one of them plantation age: 4, 8 and 14 years of age; the other factor was the organic and inorganic fertilization at different doses; which contained N, P, K, Ca, Mg and S in increasing doses compared to a control. The sources used were ammonium nitrato for N, phosphoric rock for P, potassium chloride for K and magnesium sulfate for Mg, Ca and S were incorporated with phosphoric rock and magnesium sulfate. According the proposed objectives, the parameters evaluated were: the severity of leaf rust damage, calculating the percentage of the rate of damage intensity (% IID), and the AUDPC (area under the disease progress curve); the yield, registering data of the grain harvest which were processed until obtain dry grains with husk or “parchment coffee”; and the sensory analysis that was carried out by tasters of the Oro Verde cooperative of Lamas city. The results showed a positive response to organic or inorganic fertilization for both damage severity of leaf rust and in the production increase. Also, it is important to mention that the use of inorganic fertilizers did not affect the quality of coffee. Inorganic fertilization showed the greatest positive effect; it allowed a smaller AUDPC in the coffee plants, in any of its ages. The increase in the production of parchment coffee was higher on plantations of 8 years of age with the inorganic fertilizer, with the treatment T3; however, Formula T2 appears to be the most recommended for producers. The addition of inorganic fertilizer did not affect the sensory analysis of coffee. Only two components of the sensory analysis of coffee showed differences: fragrance/aroma and residual taste
Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons