Vol. 12, Issue 5 (2023)

Author(s):
GJ Patel, CJ Patel, YB Chauhan and AY Makani

Abstract:
A field experiment was conducted at Tribal Research cum Training Centre, Anand Agricultural University, Devgadh Baria, Dist. Dahod, Gujarat during the rabi season of the year 2019-20, 2020-21 and 2021-22. The experiment was carried out in split plot design with eighteen treatments replicated three times. The treatments details included T₁: N₁P₁K₀ (80:20:00 NPK kg/ha), T₂: N₁P₁K1 (80:20:40 NPK kg/ha), T₃: N₁P₂K₀ (80:40:00 NPK kg/ha), T₄: N₁P₂K₁ (80:40:40 NPK kg/ha), T₅: N₁P₃K₀ (80:60:00 NPK kg/ha), T₆: N₁P₃K₁ (80:60:40 NPK kg/ha), T₇: N₂P₁K₀ (100:20:00 NPK kg/ha), T₈: N₂P₁K₁ (100:20:40 NPK kg/ha), T₉: N₂P₂K₀ (100:40:00 NPK kg/ha), T₁₀: N₂P₂K₁ (100:40:40 NPK kg/ha), T₁₁: N₂P₃K₀ (100:60:00 NPK kg/ha), T₁₂: N₂P₃K₁ (100:60:40 NPK kg/ha), T₁₃: N₃P₁K₀ (120:20:00 NPK kg/ha), T₁₄: N₃P₁K₁ (100:20:40 NPK kg/ha), T₁₅: N₃P₂K₀ (120:40:00 NPK kg/ha), T₁₆: N₃P₂K₁ (120:40:40 NPK kg/ha), T₁₇: N₃P₃K₀ (120:60:00 NPK kg/ha) and T₁₈: N₃P₃K₁ (120:60:40 NPK kg/ha). Sugar 75 variety of sweet corn was used as a test crop. The results revealed that due to different levels of nitrogen, the highest Green cob yield (17053, 18253, 19153 and 18152 kg/ha) were found with treatment N₃: (120 kg N/ ha) in first year, second year, third year and in pooled basis, respectively. While in case of phosphorus, the highest Green cob yield (16893, 18093, 18993 and 17993 kg/ha) were found with treatment P₃ - (60 kg P₂O₅/ha) in first year, second year, third year and in pooled basis, respectively. Same trend was found in case of green fodder yield (kg/ha). From the present investigation, it could be concluded that growing rabi hybrid sweet corn through drip irrigation system (0.8 PEF) are recommended to fertilize the crop with 120 kg N/ha {(105 kg N through Urea & 15 kg N through Urea phosphate) (24 kg as basal and remaining 96 kg in four equal splits at 20, 30, 40 and 50 DAS)} and 40 kg P₂O₅/ha through urea phosphate (08 kg as basal and remaining 32 kg in four equal splits at 20, 30, 40 and 50 DAS) through fertigation to get higher green cob yield and net return.