The Effect of some Tillage Systems and Fertilizers on Yield and Yield Components of Cotton Plant

Abstract

The experiment was conducted during the growing seasons of 2006 and 2007, to evaluate the effect of tillage systems and fertilizers on yield and yield components of cotton plant at the College of Agriculture field, University of Baghdad.The tillage systems treatments included moldboard plow, chisel plow and no tillage and four fertilizers treatments included cow and chicken manure, chemical fertilizers with control treatments were used in this study.Experiment of split plot under randomized complete block design with three replicates and L.S.D (0.05) were used to compare the means of treatments, total bolls number, number of open bolls, seed index, bolls weight, lint percentage and seed cotton were studied in this research . The experimental results showed the following:1-Tillage moldboard resulted in a significant increased in number of open bolls (17.88 and 18.55 boll/plant) , total bolls number (27.42 and 28.30 boll/plant) seed cotton yield (33.90 and 36.25%), weight of boll, seed index for the two seasons and lint percentage for the second season.2-Fertilizers treatments including, cow and chicken manure, increased total bolls number , number of open bolls, weight of bolls, and seed cotton yield for the two growing seasons.3-The interaction between tillage systems and organic fertilizers include cow in all the properties were studied in this research.