Effect of vermicomposts on development of morphological characteristics which shape the crop of bean seeds

application rates bark caracteres de rendimiento composante de rendement compost compostage composting composts corteza crop yield dose d'application growing media haricot commun inorganic fertilizers kidney beans lodos residuales oligochaeta paille paja phaseolus coccineus pot experimentation rendement des cultures rendimiento de cultivos sawdust sciure sewage sludge soil sol statistical methods straw substrat de culture substratos de cultivo suelo variedades varieties yield components