Effect of plant geometry and nitrogen level on yield and juice quality of sugarcane

Abstract

In order to study the effect of seed rate manupulated through planting geometry and levels of nitrogen on sugarcane variety, CoS 7918, a field experiment in split plot design with three replications was conducted at Genda Singh Sugarcane Breeding and Research Institute, Seorahi, in the spring season of 1990-91 and 1991-92. The results indicated that planting geometry which involved variations in both seed rate and spacing had significant positive effects on yield attributing factors as compared to planting with normal or double seed rate in 90 cm spaced rows. The planting geometry, viz, 30:90 cm significantly gave the highest yield (122.85 MT/ha) of sugarcane followed by 25:75 cm and 45:45 cm etc. This increase in yield was mainly brought about by significant increase in the number, girth and length of millable canes. Irrespective of planting geometry, the added dose of N increased the yield and yield related attributes, significantly. The effect of different treatments on juice quality was not well marked.