Growth Analysis of New Cotton (Gossypium hirsutum L.) Cultivars Affected by Planting Data and Nitrogen Fertilizer in Golestan

Abstract

. Growth analysis of new cotton ( Gossypium hirsutum L.) cultivars affected by planting date and nitrogen fertilizer in Golestan. Environmental 19(4): 1-14. 160 kg ha -1 in first planting date. Among the cultivars, Golestan cultivar showed a better response to Latif cultivar at zero fertilizer level and 160 kg ha -1 nitrogen fertilizer. Conclusion: In general, first planting date (29 June) in comparison with the second planting date (12 July) caused higher DM production, LAI, RGR and vegetative growth and Golestan cultivar had better performance than Latif cultivar at 0 and 160 khNha -1 . The maximum RGR at these two-fertilizer level in Golestan cultivar was recorded at the first planting date which caused a significant difference for the time reaching maximum LAI.