EFFECTS OF DIFFERENT NITROGENOUS FERTILIZ ERS ON NITRATE CONTENT OF LETTUCE PLANTS .1. COMPARISON OF A NEW SLOW-RELEASE FERTILIZER WITH TRADITIONAL FERTILIZERS
A. Belligno et al., EFFECTS OF DIFFERENT NITROGENOUS FERTILIZ ERS ON NITRATE CONTENT OF LETTUCE PLANTS .1. COMPARISON OF A NEW SLOW-RELEASE FERTILIZER WITH TRADITIONAL FERTILIZERS, Agrochimica, 40(2-3), 1996, pp. 85-93
The objective of this research was to determine the effect of differen
t fertilizers on nitrate contents in two lettuce cultivars, Iceberg an
d Romana. Plants cultivated in a sandy-loam soil were fertilized with
ammonium nitrate, calcium-nitrate, ammonium-sulphate, urea and oxamide
(100, 200, 300 Kg Ha(-1)) and compared to a control with no added N.
Several genotypes of lettuce (lactuca sativa L.) differed significantl
y in N-NO3- accumulation. Nitrogen level and different fertilizers had
influence nitrate content.