Effect of Fertigation Using Different Rates and Sources of Fertilizers on Growth and Yield of ....

During the summers of 2015 and 2016, a field experiment was conducted at the ICAR-Indian Institute of Horticultural Research in Bengaluru to investigate the impact of fertigation on the performance of cucumber variety ‘Vani.' The experiment had ten treatments, including various doses, fertiliser sources, and application frequency, and was set up in a Randomized Block Design with three replications. The application of a fertiliser dose (75:56:75 kg N:P2O5:K2O ha-1) by fertigation using water soluble fertilisers on a bi-weekly basis resulted in higher values for vine length (217.50 cm), leaves vine-1, and total vine length (217.50 cm) (83.50), The same dosage and source were administered at weekly intervals for 50 days after transplantation, and the results remained consistent. T3 and T7 had higher numbers of fruits vine-1 (14.20 and 14.00), fruit length (19.75 and 20.75 cm), fruit girth (16.97 and 16.12 cm), and fruit weight (16.97 and 16.12 cm) (313.17 and 306.05 g). Both of the fertigation treatments had higher yields than the traditional fertiliser application in the soil, ranging from 10.75 to 45.60 percent. The application of 100% of the fertiliser dose using water soluble fertilisers at weekly intervals resulted in substantially higher yields among the fertigation treatments. (69.50 t ha-1) relative to all procedures except the one in which the same dose of fertiliser was applied bi-weekly from the same sources (69.20 t ha-1). The most effective treatment for achieving economical cucumber fruit yield, economic return, and saving water and mineral fertilisers is to apply a 100% fertiliser dose using water soluble fertilisers at weekly intervals.

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