Author(s):

Amandeep Kaur and Simranjot Kaur

Abstract: A field experiment was conducted in the Department of Horticulture, Khalsa College, Amritsar during 2017-18 to study the effect of foliar application of macro and micro-nutrients on growth, yield and economics of tomato (Lycopersicon esculentum Mill.) cv. NS-524. The investigation was laid out in Randomized Block Design (RBD) with three replication having ten treatments viz., potassium sulphate (0.50%. 0.75%, 1.00%), zinc sulphate (200 ppm, 300 ppm, 400 ppm), boric acid (200 ppm, 300 ppm, 400 ppm) and control (water). The foliar spray was given at three stages first at 30 (DAT), second at 40 (DAT) and third at 50 (DAT). Potassium sulphate application at 0.75% increased plant height (107.51 cm), number of leaves (190.50), number of fruit per plant (28.70), fruit length (4.72 cm), fruit diameter (5.67), fruit weight (86.09 g), fruit volume (94.33 cc), yield per plant (2.47 kg), yield per ha (1054.80 q) and also gave maximum return with B:C ratio of 5.94 as compared to other treatments. In case of micro-nutrients boric acid and zinc sulphate (400 ppm) showed better results over the other concentrations viz. more effective in increasing quantitative characteristics and showed better economic returns as compare to control. Therefore, the foliar application of potassium sulphate (0.75%), boric acid (400 ppm) and zinc sulphate (400 ppm) are the most effective treatments to improve growth, yield and economics return of tomato.

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