Evaluation of the Effect of Foliar Nano Nitrogen and Zinc on Chlorophyll (SPAD) and Qualitative Traits of Green Chilli in Comparison with Urea and ZnSO4
G. B. Jayanth Kanavi *
Department of Agronomy, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga- 577204, India.
C. Sunil
Department of Agronomy, Organic Farming Research Centre, KSNUAHS, Shivamogga, Karnataka, India.
Sarvajna B. Salimath
Department of Soil Science, KSNUAHS, Shivamogga, Karnataka, India.
H. B. Mallikarjuna
Department of Statistics, KSNUAHS, Shivamogga, Karnataka, India.
Praveen V. Kadam
Department of Agronomy, KSNUAHS, Shivamogga, Karnataka, India.
H. R. Jeevan
Department of Agronomy, KSNUAHS, Shivamogga, Karnataka, India.
*Author to whom correspondence should be addressed.
Abstract
The faulty and imbalanced application of fertilizers to chilli threatens the environment and affects the country's sustainable food and nutritional security. Variation in the method and quantity of N and Zn fertilizer application has a higher impact on the chilli production and quality. An experiment was carried out at AHRS, Bavikere, KSNUAHS, Shivamogga, to study the effect of foliar nano nitrogen and zinc application on green chilli's growth, yield and quality. There were eight treatments which replicated three times using the RCBD design. Treatment combinations of foliar nano nitrogen and zinc and foliar urea and ZnSO4 with different levels of RDN (75%, 100%, 125%) were tested against control (100% RDF). The results revealed that chilli quality parameters significantly varied with applying nano N and Zn compared to the control. Among the treatments, application of RDN (125%) and foliar nano N (0.4%) and Zn (0.4%) at 30 and 45 DAT registered significantly higher chlorophyll, oleoresin, ascorbic acid and TSS. T3 reported significantly superior ascorbic acid and oleoresin content to 14.94 per cent and 22.10 per cent over control.
Keywords: Green chilli, nano fertilizers, chlorophyll, ascorbic acid, oleoresin