Impact of different Sources of Zinc on Yield, Yield Components and Nutrient Uptake of Sweetcorn

Author: Monika Peddapuli*, B. Venkateswarlu and V. Sai Surya Gowthami

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Abstract

Micronutrient malnutrition has been widespread both in developing and developed countries affecting about 2 billion people. In contrast, most of the cereal based crops are fundamentally deficient in micronutrients. Food fortification is widely acknowledged as an effectual approach to enhance micronutrient status in population. Agronomic fortification of cereals is a rapid and effective method to enrich the cereals with the micronutrients particulary zinc. A field experiment was conducted during kharif, season of 2020-21 at Agricultural College Farm, Bapatla. The experiment was laid out in simple Randomised Block Design with nine treatments and replicated thrice. Among different sources of zinc, soil application of 10 kg ha-1 Zn EDTA + foliar application of nano zinc @ 250 ppm at 20 & 40 DAS along with RDF recorded significantly highest green cob yield (12,638 kg ha-1), stover yield (7590 kg ha-1), number of seed rows cob-1 (16.84), number of seeds row-1 (32.57), cob length (22.44 cm),

Keywords

Nutrient Uptake, Nano Zinc, Cob Girth and Stover Yield.

Conclusion

Soil application of Zn EDTA (10 kg ha-1) along with the two foliar sprays of nano zinc (250 ppm) at 20 and 40 DAS was found to be more effective in improving yield attributes, cob and stover yield of sweetcorn. The highest zinc and nitrogen uptake by the plant at harvest was noticed in the plots treated with RDF along with soil application of 10 kg ha-1 Zn EDTA + foliar application of nano zinc @ 250 ppm at 20 & 40 DAS treatment and the lowest was observed in control.

References

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How to cite this article

Monika Peddapuli, B. Venkateswarlu and V. Sai Surya Gowthami (2022). Impact of different Sources of Zinc on Yield, Yield Components and Nutrient Uptake of Sweetcorn. Biological Forum – An International Journal, 14(1): 1456-1461.