Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Plamena YANKOVA, Hriska BOTEVA
The experimental work was carried out during the period 2014-2016 at the experimental field of Technical University of Varna. There have been tested biological products for fertilizing: Biosol, Biofa and Emosan with determinant tomatoes, variety Kopnezh F1, being grown with two plans - single-row and two-row scheme. The purpose of the research is to be realized an evaluation of the economic efficiency by the fertilizing and way of growing of middle early tomatoes in the conditions of biological agriculture. The highest profitability and rate of profitableness average for the period of research is established with combined fertilizing with Emosan + Biofa, respectively 2,00 % for the one-row and 2,18 % for the two-row scheme. There have been established higher values of the total incomes with the two-row scheme of growing, which is due to the higher realized yield. The total income with variety Kopnezh F1 average for the period is from 8 226.30 BGN/da for the control up to 10 724,70 BGN/da for the combination of Emosan + Biofa with the two-row scheme of growing. The high values of the economic indexes, in combination with the high average yield, determine the feeding up with Emosan, put independently or combined with Biofa with both schemes of growing as economically justified and appropriate for biological production of middle early tomatoes.
[Read full article] [Citation]
