Effect of Organic Manures and Spacing on Growth and Yield of Sweet Corn (Zea mays saccharata L.)

A field experiment was conducted during Rabi 2021-22 at Crop Research Farm, Department of Agronomy, Niani Agricultural Institute, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India. The experiment was laid out in Randomized Block Design with nine treatments each replicated thrice on the basis of one year experimentation. The treatments consisted of FYM 18 t/ha, Poultry manure 3 t/ha Vermicompost 3 t/ha and three levels of spacing i.e.: 40 cm×25 cm, 50 cm×25 cm, 60 cm×25 cm. The results showed that treatment-6 (Poultry manure 3 t/ha + 60 cm x 25 cm) was recorded significantly higher plant height (176.59 cm), maximum number of leaves/plant (14.37) and higher plant dry weight (144.03 g/plant). Whereas the maximum number of cobs/Plant (2.60), maximum cob length (16.57 cm), maximum girth of cob/plant (15.37), maximum cob weight with husk (323.90 g), maximum cob weight without husk (252.10 g), higher cob yield with husk (13.15 t/ha), higher cob yield without husk (8.51 t/ha).