Abstract:
In this scientific paper, we
have shown the apparent degrees of the
efficient use of nutrients from leaf fertilizers
(GAUPENICF) and the productive degrees of
the efficient use of nutrients from soil
reserves (GUPENsol), based on greenhouse
tomato yields, obtained after applying leaf
fertilizers. In our trials, we have tested the
fertilization method and leaf compositions
as methods of plant fertilization, for
correcting and supplementing crop nutrition
in greenhouses and preventing environment
pollution. By applying leaf fertilizers in
greenhouse tomato crops, we have obtained
high yield increases and a significant
diminution in the chemical pollution of the
environment. The incomplete use by the
crop of nutrients from applied fertilizers has
determined the increase in the incidence of
soil chemical pollution. However, soil
fertility may be diminished by high uptakes
of soil nutrients, under conditions of weak
nutrient supply of soil (without basic
fertilization). Therefore, we recommended
the concomitant use of soil and leaf
fertilization.
