Growth dynamics and yield of melon as influenced by nitrogen fertilizer

Castellanos Serrano, Maria Teresa and Cabello Cabello, María Jesús and Cartagena Causape, Maria Carmen and Tarquis Alfonso, Ana Maria and Arce Martinez, Augusto and Ribas Elcorobarrutia, Francisco (2011). Growth dynamics and yield of melon as influenced by nitrogen fertilizer. "Scientia Agricola", v. 68 (n. 2); pp. 191-198. ISSN 0103-9016.

Description

Title: Growth dynamics and yield of melon as influenced by nitrogen fertilizer
Author/s:
  • Castellanos Serrano, Maria Teresa
  • Cabello Cabello, María Jesús
  • Cartagena Causape, Maria Carmen
  • Tarquis Alfonso, Ana Maria
  • Arce Martinez, Augusto
  • Ribas Elcorobarrutia, Francisco
Item Type: Article
Título de Revista/Publicación: Scientia Agricola
Date: March 2011
ISSN: 0103-9016
Volume: 68
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Matemática Aplicada a la Ingeniería Agronómica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Nitrogen (N) is an important nutrient for melon (Cucumis melo L.) production. However there is scanty information about the amount necessary to maintain an appropriate balance between growth and yield. Melon vegetative organs must develop sufficiently to intercept light and accumulate water and nutrients but it is also important to obtain a large reproductive-vegetative dry weight ratio to maximize the fruit yield. We evaluated the influence of different N amounts on the growth, production of dry matter and fruit yield of a melon ‘Piel de sapo’ type. A three-year field experiment was carried out from May to September. Melons were subjected to an irrigation depth of 100% crop evapotranspiration and to 11 N fertilization rates, ranging 11 to 393 kg ha –1 in the three years. The dry matter production of leaves and stems increased as the N amount increased. The dry matter of the whole plant was affected similarly, while the fruit dry matter decreased as the N amount was increased above 112, 93 and 95 kg ha –1 , in 2005, 2006 and 2007, respectively. The maximum Leaf Area Index (LAI), 3.1, was obtained at 393 kg ha –1 of N. The lowest N supply reduced the fruit yield by 21%, while the highest increased the vegetative growth, LAI and Leaf Area Duration (LAD), but reduced yield by 24% relative to the N93 treatment. Excessive applications of N increase vegetative growth at the expense of reproductive growth. For this melon type, rates about 90-100 kg ha –1 of N are sufficient for adequate plant growth, development and maximum production. To obtain fruit yield close to the maximum, the leaf N concentration at the end of the crop cycle should be higher than 19.5 g kg –1

More information

Item ID: 12246
DC Identifier: http://oa.upm.es/12246/
OAI Identifier: oai:oa.upm.es:12246
Deposited by: Memoria Investigacion
Deposited on: 28 Aug 2012 08:23
Last Modified: 21 Apr 2016 11:29
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