Effect of soil compaction and soil amendments on growth and yield of Vigna unguiculata L
S S K J Senarath, S Sutharsan, S Srikrishnah, L M Rifnas
An experiment was conducted to study the effects of soil compaction and application of soil amendments on growth and yield of Vigna unguiculata L. The experiment was laid out in 2 x 3 factor factorial Randomized Complete Block Design with six treatments and each replicated with six times. The treatment combinations were; T1: compact soil with compost application, T2: compact soil with amuthakaraisal application, T3: compact soil with Department of Agriculture (DOA) recommended fertilizer application, T4: loose soil with compost application, T5: loose soil with amuthakaraisal application and T6: loose soil with DOA recommended fertilizer application. Other crop management practices were followed uniformly as recommended by DOA, Sri Lanka. Growth and yield data were collected and statistically analyzed by ANOVA and mean comparison was performed using Duncan’s test at 5% significance level. The results revealed that, there were significant (p<0.05) interaction between the factors of soil compaction and soil amendments on all the tested parameters. Vigna unguiculata L. planted in loose soil with the application of amuthakaraisal showed significantly highest values in biomass of shoot, root, length of lateral roots, no. of nodules, effective nodules and yield. Comparatively lower values were observed in compact soil with the application of all tested soil amendments. Therefore, it could be concluded that in loose soil application of amuthakaraisal as a soil amendment can be used to increase the growth and yield of Vigna unguiculata L.
S S K J Senarath, S Sutharsan, S Srikrishnah, L M Rifnas. Effect of soil compaction and soil amendments on growth and yield of Vigna unguiculata L. International Journal of Botany Studies, Volume 7, Issue 1, 2022, Pages 140-144