MACRO NUTRIENTS UPTAKE OF FORAGE GRASSES AT DIFFERENT SALINITY STRESSES
Abstract: The high
concentration of sodium chloride (NaCl) in saline soils has negative effects on
the growth ofmost plants. The experiment was designed to evaluate macro
nutrient uptake (Nitrogen, Phosphorus andPotassium) of forage grasses at
different NaCl concentrations in growth media. The experiment wasconducted in a
greenhouse at Forage Crops Laboratory of Animal Agriculture Faculty, Diponegoro
University.Split plot design was used to arrange the experiment. The main plot
was forage grasses (Elephant grass(Pennisetum purpureum ) and King grass
(Pennisetum hybrida)). The sub plot was NaCl concentrationin growth media (0,
150, and 300 mM). The nitrogen (N), phosphorus (P) and potassium (K) uptake in
shootand root of plant were measured. The result indicated increasing NaCl
concentration in growth mediasignificantly decreased the N, P and K uptake in
root and shoot of the elephant grass and king grass. Thepercentage reduction
percentage of N, P and K uptake at 150 mM and 300 mM were high in elephant
grassand king grass. It can be concluded that based on nitrogen, phosphorus and
potassium uptake, elephantgrass and king grass are not tolerant to strong and
very strong saline soil.
Author: F. Kusmiyati, E.D.
Purbajanti, B.A. Kristanto
Journal Code: jppeternakangg090026
