Vol. 10, Issue 7 (2021)

Author(s):
Sneha Kshirsagar and PK Nagre

Abstract:
A field experiment was conducted during kharif (2018-2019) and summer (2019-2020) to standardize the fertigation levels and intervals for assessing plant and soil nutrient status viz., total nutrient uptake of N, P and K plant and available nutrient status. The experiment was laid out in Split Plot Design with two replications. The main plot treatment consist of five fertigation levels (F) viz., F₁- 100% of RDF through soil as a straight fertilizer, F₂- 120% of RDF through water soluble fertilizer, F₃- 100% of RDF through water soluble fertilizer, F₄ ­­- 80% of RDF through water soluble fertilizer, and F₅- 60% of RDF through water soluble fertilizer and sub plot treatment included three fertigation intervals (S) viz.,S₁- at 4 days interval, S₂- at 8 days interval and S₃- at 12 days interval. The F₂S₁ (120% of RDF through water soluble fertilizer (Fertigation) with 4 days intervals) provided significantly higher biomass and fruit yield of bitter gourd which was reflected in significantly higher total nutrient uptake of nitrogen (99.85 and 102.10 kg/ha), phosphorus (28.34 and 29.76 kg/ha) and potassium during summer season (114 kg/ha). Fertigation with 120% RDF with 4 days interval was found to record maximum available soil nutrients like nitrogen (268.62 and 270.51 kg/ha), phosphorus (17.90 and 19.72 kg/ha) and potassium (382.91 and 385.06 kg/ha) both the season.