Vol. 12, Issue 3 (2023)

Author(s):
Dipak Gavit, Dr. MM Deshmukh and Dr. SB Wadatkar

Abstract:
A field experiment was conducted for estimation of fortnightly total water requirement of hybrid brinjal crop under drip fertigation and traditional fertilization methods at Dr. PDKV, Akola during November 2021 to May 2022. The experiment was laid down in randomized block design with four drip fertigation levels (75, 100, 125 and 150% of RDF) and one control treatment of traditional fertilization method. All these treatments are replicated four times. The study showed that the fortnightly total water requirement of hybrid brinjal crop ranges from 5.99 lit per plant to 74.00 lit per plant i.e. 8.87 mm to 109.63 mm. The total irrigation water requirement of hybrid brinjal crop was found to be 550.88 mm under 80% ET level i.e. 371.85 litres per plant. The highest yield of brinjal was recorded in treatment T₄ (drip fertigation with 150% of RDF) (470.33 q/ha) which was followed by treatments T_3, T₂, T_1, T₅ and found statistically at par with treatment T₃ (drip fertigation with 125% of RDF). Highest water use efficiency was recorded in treatment T₄ (drip fertigation with 150% of RDF) (8.54 q/ha-cm) which was followed by treatments T₃ T₂ T₁ and T₅. Treatment T₅ (Traditional fertilization at 100% of RDF) recorded the lowest water use efficiency.