Influence of different dosage and frequency of liquid jeevamrutha application on leaf nutrient status of guava (Psidium guajava) cv. L-49 under Northern Transition Zone of Karnataka

Abstract

The present field experiment was conducted at Regional Horticultural Research and Extension Center, Kumbapur, Dharwad during 2019-20 and 2020-2021. The objective of the study was to study the influence of application of liquid jeevamrutha at different dosage and frequency on leaf nutrient status (N, P, K, Ca, Mg & S) of guava cv. L-49. The experiment was designed in two factorial randomized block design with each factor having three levels. Three different levels of liquid jeevamrutha viz., 500 l/ha, 750 l/ha and 1000 l/ha at different frequencies like 15 days, 21 days and 30 days was applied to guava trees in the effective root zone area. The combination effect of dosage and frequency of application was compared with recommended package of practice (RPP). The results showed that application of higher dosage of liquid jeevamrutha i.e., 1000 l/ha at an interval of 15 days recorded significantly higher leaf nutrient status. Similarly in interactions also D3F1 (Application of liquid jeevamrutha @ 1000 l/ha at 15 days interval) recorded significantly highest nitrogen (1.79 % and 1.56 %), phosphorous (0.30 % and 0.23 %), potassium (0.73 and 0.68 %), Sulphur (0.54 % and 0.49 %), calcium (2.30 % and 2.09 %) and magnesium (0.68 % and 0.50 %) at flowering and after harvest respectively.