Open AccessEffect of foliar fertilization of Capsicum annuum L. together with optimal root fertilization in hydroponic culture on fruit yield and its capsaicin content
Author(s) -
Tadeusz Nowak
Publication year - 2013
Publication title -
acta agrobotanica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 9
eISSN - 2300-357X
pISSN - 0065-0951
DOI - 10.5586/aa.1980.005
Subject(s) - human fertilization , yield (engineering) , capsicum annuum , nutrient , chemistry , capsaicin , chelation , horticulture , hydroponics , agronomy , biology , food science , inorganic chemistry , materials science , biochemistry , receptor , organic chemistry , pepper , metallurgy
The Wrocław version of hydroponic culture was applied. The optimal dose of mineral nutrient solution for root-fertilizing was found to be 19,6g and 22,4g of mineral salts per one plant during the whole vegetation season. In a separate experiment plants with optimal root fertilization were sprayed with multicomponent solutions of mineral salts. The sprays were applied weekly for 15 weeks. The concentrations of solutions for spraying were: 0,28, 0,84 and 1,4 per cent. The greatest increase of fruit yield was noted after the 0,84 per cent solution. At optimal concentration of spray solution (0,84%) chelating agents added (EDTA or humate) had no effect. Addition of the chelating agents to the 1,4% solution attennated its inhibitory effect. The humate gave a better effect than EDTA. A tenfold increase of microelements content (6 mg/l of each instead of 0,6 mg/l) in 0,28 per cent spray solution produced a marked increase of the yield of fruits and of their capsaicin content