Differential Uptake of N, P and K By Carnation Plants Under Varying Levels of Nitrogen, Their Time of Application and Plant Density

An investigation was conducted at Punjab Agricultural University, Ludhiana, during 1974–75 to find out the effect of different levels of nitrogen, their time of application and plant density on the uptake of N, P and K by carnation plants at two stages i.e. at tufting stage and peak flowering stage. Nitrogen and phosphorus content of leaves was significantly increased when N application was increased from 20 to 40 g/m² and applied in three splits. On the contrary, potassium content of leaves was significantly decreased. Nitrogen and phosphorus content of leaves was comparatively decreased at peak flowering stage than at tufting stage whereas the uptake of potassium was increased at peak flowering stage than at tufting stage.