The effect of foliar applied policompound fertilizers on yield of iceberg lettuce
Maria Osińska, Eugeniusz Kołota
Department of Horticulture
Rozbrat 7, 50-334 Wrocław, Poland
In a field experiment conducted in 1998-1999 the efficiency was estimated
of foliar application of policompound fertilizers Ekolist PK, Ekolist U,
and Mikrosol U in iceberg lettuce production. Preplant fertilisation with
half or full recommended rates of NPK was supplemented by four foliar
sprayings conducted at ten day intervals during the intensive plant growth
stage. Results of the study showed that foliar nutrition of iceberg
lettuce gave an increment of marketable yield at a range up to 9.6%, and
mean weight of head by maximum 30.7%. Nutritional value of the crop
expressed by the content of dry matter, total and reducing sugars was not
affected by the foliar plant nutrition.
Osińska M., Kołota E., 2002. The effect of foliar applied policompound
fertilizers on yield of iceberg lettuce. Folia Horticulturae 14/1: 171-176.