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

Abstract

A field experiment was conducted to find out the effect of foliar application of organics on growth and yield of coriandervar. GDLC-1” was carried out at Regional Horticultural Research Station, ASPEE College of Horticulture, Navsari Agricultural University, Navsari, Gujarat during Rabi season in the year 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 control (T₉) was followed. The foliar spray was given at 20 and 45 days after sowing. The foliar application of Novel organic liquid nutrients @ 1.5 % (T₃) was showed highest total chlorophyll content (1.64 mg g^-1 and 1.71 mg g^-1), 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) at 30 and 50 DAS, respectively. In case of growth parameters, maximum plant height (39.14 cm and 27.87 cm), number of branches plant^-1 (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 different 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^-1 (18.47 g and 24.40 g),herbage yield at first and second cutting (9.13 t ha^-1and 11.70 t ha^-1) at 30 and 50 DAS as well as fresh weight of herbage (20.83 t ha^-1) at both the cuttings.Economic point of view, maximum net income of Rs.632592.00ha^-1 with benefit: cost ratio of6.56 was was found economical,profitable and highly remunerativeby foliar spray of Novel organic liquid nutrients @ 1.5 % (T₃) as compared to rest of the treatments.