Studies on Graded Levels of NPK on Nutrient Status of Soil and Plant of Parthenocarpic Cucumber (Cucumis sativus L.) under Naturally Ventilated Polyhouse Condition

The present investigation entitled “Studies on graded levels of NPK on growth, yield and quality of parthenocarpic cucumber (Cucumis sativus L.) under naturally ventilated polyhouse condition” during Winter season of year, 2022 at A field experiment was conducted at College of Agriculture, Ambajogai. The experiment was layout in RBD with three replications and recommended variety of - Parthenocarpic cucumber as a test crop along with nine treatments. nutrient availability, nutrient uptake were significantly influenced by application of 125% NPK RDF of cucumber crop. Significantly higher uptake of N among the fertigation levels, significantly higher total nitrogen uptake was noticed in the cucumber plant for treatment T9 (125% RDF at 7 days intervals upto 90 DAT). (47.21 %) at harvest and at par with T6, T7 and T8. whereas the lowest total nitrogen uptake was observed in treatment T1 (control) at harvest (10.11 %), P Among the fertigation levels, significantly higher total phosphorus uptake was noticed in the cucumber plant for treatment T9 (125% RDF at 7 days intervals upto 90 DAT). (26.70 %) at harvest and observed at par with treatments T6, T7 and T8. whereas the lowest total phosphorus uptake was observed in treatment T1 (control), at harvest (12.78 %), K Among the fertigation levels, significantly higher total potassium uptake was noticed in the cucumber plant for treatment T9 (125% RDF at 7 days intervals upto 90 DAT). 96.80 % at harvest respectively and at par with T6, T7 and T8. The lowest total nitrogen uptake was observed in treatment T1 (control). at harvest (63.19 %).and organic carbon was found in cucumber with treatment T9 (application of 125% of RDF 7 days of interval upto 90 DAT). Available soil nutrient status in post soil samples after harvest were comparably found maximum than initial soil samples.