Influence of lime and farm yard manure
par Dieudonne MUGOBOKA
ISAE Busogo - Bachelor's Degree 2008
The results obtained on tap-roots length at harvesting time in different plots as per 7 treatments are presented on the appendix 5 while the mean lengths are presented on the following figure:
It was observed that the mean length vary from 11.5cm to 17.1cm with the general mean of 15 cm .The T3 shows the highest value while T6,T5,and T1 represents the middle values.
The lowest values were observed from T4 and T0.The analysis of variance below indicates whether this difference observed between treatments is significant.
From the table above, there is a significant different between treatments at 1% threshold as the value of F ration is greater than the value of F Table at 1 % threshold. The difference observed between blocks is not significant as the F ratio is lower than the value of F .table at the same threshold.
The table above shows that the treatments are classified into 4 groups(A,B,C,D).the group A(T2, T3and T6) shows the best results .The group B represents T5 while group C is for T1 and T4.The lowest value is observed on T0.
The highest values for group A and B (T2,T3,T6 and T5) is due to the supply of Nitrogen and Phosphorus from application of FYM and the liberation of phosphorus by application of lime (Russel,1980).
The results obtained on taproot diameter at harvesting time as per 7 treatments are presented on appendix 6 while the mean tap root diameters are presented in the following figure:
From the figure above, it is observed that the mean diameter vary from 2.7cm to 4.4cm with general mean of 3.5 cm.T3,T2 and T6 show the highest values ,followed by T5,T4,T1 and lastly T0.The ANOVA test below shows whether the difference between treatments is significant.
The above table shows that the difference between treatments is significant at 1 % threshold as the F ratio is greater than F Table at 1 % threshold. The difference observed between blocks is not significant as the F ratio is lower than the value of F .table at the same threshold.
The mean separation table above classifies the treatments into 5 homogeneous groups.T3 and T2 are classified into group A, T6 into group B,T5 into group C,T1into group D, T4 and T0 into group E. The T3 and T2 show the best results, followed by T5 and T6.This is justified by the supply of Phosphorus from FYM and the liberation of Phosphorus by application of lime, which is essential nutrients for root development (Russel, 1980).