KULWINDER SINGH AND KARAN VERMA*
University College of Agriculture, Guru Kashi University Talwandi Sabo
Bathinda-151 302 (Punjab), India
*(e-mail : karanverma@gku.ac.in)
(Received : 13 June 2023; Accepted : 27 June 2023)
SUMMARY
A field experiment entitled “Fodder maize production under different levels of nitrogen and phosphorus in Punjab” was carried out at the research farm of Guru Kashi University, Talwandi Sabo (Bathinda) during kharif season 2021. The experiment comprising total 16 treatments combinations viz., four levels of nitrogen control, (Control, nitrogen @ 60, 80 and 100 kg/ha) allotted in main plots and four level of phosphorus (Control, P2O5 @ 30, 40 and 50 kg/ha) in sub plot treatments. Experiment was carried out in split plot design with three replications. Results revealed that growth, yield and economics of maize influenced significantly due to application of nitrogen and phosphorus levels. Results showed that application nitrogen @ 100 kg/ha at par with nitrogen @ 80 kg/ha recorded significantly higher plant height, dry weight, leaf area index, number of leaves/plant, number of internodes/plant, inter-node length and leaf: stem ration as compared to control and nitrogen @ 60 kg/ha. Further results indicated that application of P2O5 @ 50 kg/ha at par with P2O5 @ 40 kg/ha
recorded significantly higher plant height, dry weight, leaf area index, number of leaves/plant, number
of internodes/plant, inter-node length and leaf: stem at 40 and 60 DAS, as compared to control and P2O5 @ 30 kg/ha, respectively
Key words: Maize, nitrogen, phosphorus, growth and yield attributes and yield