PEREIRA, T. A.; http://lattes.cnpq.br/2061422980365644; PEREIRA, Tiago de Araújo.
Résumé:
In order to evaluate the potassium fertilization with potassium sulfate in the growth
and production of green dwarf coconut tree grown in sodic soir. The experiment was
conducted during the months of January 2013 to January 2016 in Sector 7 (seven) in
Floodplains of Sousa -- PB, Brazil. We used coconut plants belonging to green dwarf
variety, spaced rectangular formation 7.0 x 7.0 m, starting the third year in production
stabilization. The experimental design was a randomized block, evaluating ave leveis
of potassium sulphate (K2SO4) (0.0, 0.52, 1 .04, 2.08 and 4.16 kg plant'l year'l), four
replicates and four plants per repetition, totaling 80 experimental units. The plants
were conducted for three years and potassium leveis were divided unto intervals of 90
days between each applicatlon, totaling 12 applications over the conduct of the
experiment. The variables in the experiment were: stipe height, diameter of the stem,
fruits per plant, equatorial circumference of the fruits, fruit weight, water volume and
total soluble solids. The K2SO4 doses positively influenced the growth and the
production of green dwarf coconut tree. The biggest growth in height and diameter of
coconut strain is obtained in the dose of 4.16 kg plant'l year'l of K2SO4. The best
productive aspects in the first year of production are obtained with doses of 2.08 to
2.81 kg plant'l year'l of K2SO4.
