EFFECT OF FORMS OF ZINC AND LEVELS OF IRON ON GROWTH AND YIELD OF SUMMER MAIZE (Zea mays L.)

Abstract

A field study was conducted at Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj during Zaid season of 2019, to evaluate the effect of forms of Zinc and levels of Iron on growth and yield of summer Maize (Zea mays L.). The experiment consisted of 12 treatment combinations involving (ZnSO 4 and chelated zinc along with FeSO 4 ). All treatments received NPK @ 120-50-40 kg/ha respectively. Results showed that plant height (178.79 cm) and number of leaves per plant (9.87) did not differ significantly. However, The treatment combination [(application of 5 kg chelated Zinc + 20 kg/ha FeSO 4 (T5) recorded the higher values in growth parameters viz., leaf area index (3.63) and dry weight (244.38 g/plant) and higher grain yield (4.86 t/ha), Stover yield (7.31 t/ha), yield parameters viz., number of grains per row (37.27) rows per cob (18.40), seed index (34.29 g). This experiment shown treatment receiving 5 kg chelated Zinc + 20 kg/ha FeSO 4 was more productive.