Vol. 12, Issue 12 (2023)

Author(s):
Chanchal Porte, Dr. SK Jha, Dr. SK Dwivedi and Prerna Jaiswal

Abstract:
The experiment was conducted to study the response of different nitrogen levels and planting geometry on growth parameters of African tall fodder maize (Zea mays L.), under Chhattisgarh condition at the experimental field of instructional cum research farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh. The treatment includes four levels of nitrogen and three planting geometries consisting of twelve treatment combinations laid out in factorial randomized block design (FRBD). Among all the treatment combinations, application of 160 kg N ha^-1 contributed in better crop growth parameters namely, plant height, stem girth, number of internodes plant^-1, dry matter accumulation plant^-1, days taken to 50% silking and physiological maturity and found at par with application of 120 kg N ha^-1, the planting geometry of 75 x 20 cm resulted in better crop growth and development which was at par with 60 x 20 cm planting geometryat each successive growth stages as compared to other planting geometries tried however, days taken to 50% silking and physiological maturity didn’t affected by varied planting geometry. Among all the treatment combinations application of 160 kg N ha^-1 along with 75 x 20 cm planting geometry recorded the maximum growth and development of maize plants, yield attributing characters and hence the seed yield of 28.6 q ha^-1 as compared to other treatment combinations tried. Therefore, the treatment combination of 160 kg N ha^-1 along with 75 x 20 cm planting geometry was found best and was at par with 120 kg N ha^-1 and 60 x 20 cm planting geometry for better growth and development and increasing seed yield of fodder maize.