Effect of irrigation and Fertigation levels on growth and yield of potato

Abstract

The present investigation was carried out to find out the effect of frequency and dose of nitrogen fertigation on growth and yield of potato under Precision farming Development Centre at the Department of Horticulture, CCS Haryana Agricultural University, Hisar during season of 2014-16. The potato planted at a spacing of 60 cm × 20 cm. The drip irrigation system was installed 16 mm size of lateral having dripper on line of 4 lph capacity. The experiment comprising three levels of drip irrigations i.e. 1.0 (I1), 0.8 (I2) and 0.6 (I3) volume of water and four levels of fertilizers based on recommended dose of Potato F1: 25% of RDF as basal + 75% of RDF through fertigation at 23,30,37,43,51,58, and 65 days after planting. F2: 50% of RDF as basal + 50% of RDF through fertigation at 23,30,37,43,51,58 and 65 days after planting, F3: 100% of RDF through fertigation at 23, 30, 37, 43, 51, 58 and 65 days after planting and F4: RDF application as band placement and furrow irrigation at 30 mm CPE. Planting was done on 12th October, 2014-2016. The maximum plant emergence (98.00% and 99.00%), plant height (90 days after planting) (58.33 cm and 58.90 cm), yield per plot (38.37 kg and 39.97 kg) and total yield was found maximum (319.30 q/ha and 333.00 q/ha) in the treatment combination I1F1, respectively during both the season.