Effect of Nano Urea on Growth and Productivity of Wheat (Triticum aestivum L) under Vidarbha Condition

Abstract

A field experiment was conducted at Wheat Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.) during rabi season of 2023-24. The soil of experimental site was slightly saline with clay in texture. The experimental design was randomize block design with 10 treatment and replicated thrice. The treatments were T1 - One spray Nano urea (4 ml litre-1) at maximum tillering, T2 - Two spray Nano urea (4 ml litre-1) at tillering and jointing, T3 -Recommended N (1/3rd basal, 2/3rd CRI – Recommended N), T4 - Recommended N + one spray of Nano urea (4 ml litre-1) at tillering, T5 - Recommended N + two spray of Nano urea (4 ml litre-1) at tillering and jointing, T6 - Recommended N+ one spray of urea (2%) at tillering, T7 - Recommended N + two spray of urea (2%) at tillering and jointing, T8 - Recommended N + one spray of urea (2%) + Nano urea (4 ml litre-1) at tillering, T9 - Recommended N + one spray of urea (2%) +DAP (2%) + Nano urea (4 ml litre-1) at tillering, T10 - Absolute control (No nitrogen). The recommended dose of fertilizers for wheat was 80:40:40 NPK kg ha-1, which was applied in the form of urea, single super phosphate and murate of potash respectively. Growth attributes like plant height, dry matter production per plant, spike length, yield per plant were significantly influenced due to different nitrogen management treatments. Various management treatments significantly influenced the grain yield of wheat. The treatment T7 recorded maximum and significantly higher grain (5098 kg ha-1) and straw yield (5559 kg ha-1) which was at par with the treatments T3, T4, T5, T6, T8 and T9. The maximum values for growth and yield attributes with economics were found in treatment T7 which is at par with T3, T4, T5, T6, T8 and T9 in all treatments.