Effects of phosphorus and potassium levels on the yield of the tuber variety criolla colombia in the department of cundinamarca

In the locations of Zipaquirá and Cogua located in the department of Cundinamarca, the effects of applying different levels of phosphorus and potassium on tuber yield and specific gravity in the diploid potato variety Criolla Colombia were evaluated. The design used a completely randomized block wit...

Full description

Autores:
Rozo M., Yohana Carolina
Ñústez L., Carlos Eduardo
Tipo de recurso:
Article of journal
Fecha de publicación:
2011
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/41008
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/41008
http://bdigital.unal.edu.co/31105/
http://bdigital.unal.edu.co/31105/2/
Palabra clave:
fertilization
specific gravity
Solanum phureja
diploid potato.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:In the locations of Zipaquirá and Cogua located in the department of Cundinamarca, the effects of applying different levels of phosphorus and potassium on tuber yield and specific gravity in the diploid potato variety Criolla Colombia were evaluated. The design used a completely randomized block with three replications and a 4 x 4 factorial structure, where the first factor corresponds to phosphorus (0, 50, 100 and 150 kg ha-1 P2O5), and the second, potassium (0, 50, 100 and 150 kg ha-1 k2O). The variables evaluated were specific gravity and tuber yield in the categories: first (PT1), second (PT2), third (PT3) and total (PTT). In Zipaquirá, there were differences in the phosphorus factor for the yield variables PT1, PT2 and PTT, while in the town of Cogua, the only difference for this factor was found in the variable PTT. In these variables, the levels of 50, 100 and 150 kg ha-1 of P2O5 produced higher yields that were equal and above that of the 0 kg ha-1 P2O5 level. In the potassium factor, differences were found only for the yield variable PT3 in the town of Cogua. The specific gravity did not respond to the P or K factors evaluated.