%0 Journal Article
%T Rendimento de feij£¿o-vagem em fun£¿£¿o de doses de K2O
%A Oliveira
%A Ademar Pereira de
%A Silva
%A Jandi¨º Ara¨²jo
%A Alves
%A Adriana Ursulina
%A Dorneles
%A Carina Seixas M
%A Alves
%A Anarlete Ursulino
%A Oliveira
%A Arnaldo Nonato P. de
%A Cardoso
%A Edson A.
%A Cruz
%A Iordam da Silva
%J Horticultura Brasileira
%D 2007
%I Associa??o Brasileira de Olericultura
%R 10.1590/S0102-05362007000100007
%X aiming to evaluate the effect of k2o levels on the increase of snap bean yield, an experiment was performed in para¨ªba state, brazil, in a quartz psamment soil. the experimental design was of randomized blocks, with six treatments (0; 50; 100; 150; 200 and 250 kg ha-1 of k2o), in four replications. each plot contained 40 plants spaced 1.0 m x 0.2 m. pods maximum number/plant (20 pods) and the maximum yield/plant (171 g), were obtained, respectively with 145 and 173 kg ha-1 of k2o, and pods yield reached maximum value around 25,3 t ha-1 at the level of 171 kg ha-1 of k2o. the most economic level of k2o for the production of pods was of 165 kg ha-1. the most economic level represented 96% comparing to that responsible for maximum pods production. the k2o levels that obtained maximum pods production and economic return were correlated, respectively, with 181 and 176 mg dm-3 of k available for the extractor mehlich 1.
%K phaseolus vulgaris l
%K mineral fertilization
%K yield
%K economic return
%K potassium fertilization.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0102-05362007000100007&lng=en&nrm=iso&tlng=en