Melão rendilhado em ambiente protegido submetido à doses de nitrogênio e potássio em Rondonópolis-MT
Data
2012-12-11
Autores
Silva, Matheus de Carvalho
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Editor
Universidade Federal de Mato Grosso
Resumo
The objective of the present study was to evaluate the growth,
yield, quality and water use efficiency of muskmelon under the effects of
nitrogen and potassium. The experiment was conducted in a greenhouse at
the Federal University of Mato Grosso / University Campus Rondonópolis
from April to July 2012. The soil used was from the topsoil (0-20 cm) of an
Oxisol collected in an area of native vegetation. The experimental design was
randomized blocks. Each plot was represented by a plastic pot with 15 dm3
of soil. Treatments consisted of five levels of nitrogen (0, 40, 80, 120 and 160
mg dm-3) and five doses of potassium (0, 80, 160, 240 and 320 mg dm-3) in
5x5 factorial design, resulting in 25 treatments with 4 replicates, totaling 100
plots. Quantitative variables were: stem diameter, number of leaves, SPAD
index, leaf area, shoot dry weight. The volume of water consumed was also
evaluating addition of qualitative variables: plant production, longitudinal and
transverse circumference of the fruit, fruit shape, flesh thickness, titratable
acidity, soluble solids and total maturation index. The of water use efficiency
was also calculated. For treatments statistical program was used SISVAR
with analysis of variance and regression to 5% probability. In analyzing the
results it was found that the growth and development of the plant of melon
interaction doses of 320 mg dm-3 of potassium and 160 mg dm-3 of nitrogen,
provided the best combination of doses results and provided the highest
production fresh fruit for each liter of water used was 120N 160K and 160N
160K.
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Citação
SILVA, Matheus de Carvalho. Melão rendilhado em ambiente protegido submetido à doses de nitrogênio e potássio em Rondonópolis-MT. 2012. 103 f. Dissertação (Mestrado em Engenharia Agrícola) - Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Rondonópolis, 2012.