Effect of foliar application of organics on growth and yield of coriander (Coriander sativum)

A field experiment was conducted to find out the effect of foliar application of organics on growth and yield of coriander (Coriander sativum L.) var. GDLC-1 at Regional Horticultural Research Station, ASPEE College of Horticulture, NAU, Navsari, Gujarat during rabi season of 2022-2023. The experiment was laid out in randomized block design with three replications and nine treatments, viz. Panchagavya @ 1.5 % (T₁), Panchagavya @ 3 % (T₂), novel organic liquid nutrients @ 1.5 % (T₃), novel organic liquid nutrients @ 3 % (T₄), vermiwash @ 1.5 % (T₅), vermiwash @ 3 % (T₆), cow urine @ 1.5 % (T₇), cow urine @ 3 % (T₈) and the control (T₉). The foliar spray was given 20 and 45 days after sowing. The foliar application of novel organic liquid nutrients @ 1.5 % (T₃) showed maximum total chlorophyll content (1.64 mg/g and 1.71 mg/g), photosynthetic rate (12.24 µmol m^-2 s^-1 and 13.10 µmol m^-2 s^-1), transpiration rate (3.48 m mole m^-2 s^-1 and 3.69 m mole m^-2 s^-1) and stomatal conductance (0.21 mol m^-2 s^-1 and 0.22 mol m^-2 s^-1) 30 and 50 DAS, respectively. The maximum plant height (39.14 cm and 27.87 cm), number of branches/plant (11.73 and 20.20), petiole length (18.57 cm and 10.07 cm), leaf length (3.93 cm and 3.77 cm) and leaf width (4.05 cm and 3.84 cm) were observed under the same treatment. Among treatments, foliar application of novel organic liquid nutrients @ 1.5 % (T₃) recorded significantly minimum days taken for first cutting (30.00) with maximum fresh weight of herbage/plant (18.47 g and 24.40 g), herbage yield at first and second cutting (9.13 t/haand 11.70 t/ha) 30 and 50 DAS as well as total fresh weight of herbage (20.83 t/ha) at both the cuttings. The maximum net income of ₹632592.00/ha with a benefit:cost ratio of 6.56 was also calculated with same treatment.