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Apr 30, 2022Keywords:
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Main Article Content
Effect of Different Tillage Practices on Selected Soil Properties and Proximate Composition in Sweet potato Production
Abstract
The effect of different tillage practices on selected soil properties and proximate content of sweet potato (Ipomoea batatas (L.) were carried out in 2019 cropping season. The tillage treatments (bed, mound, flat, ridge and zero tillage) were arranged in randomized complete block design (RCBD) with 3 replicates. Tilled plots of mounds and beds significantly (p<0.05) led to higher value of nitrogen and phosphorous content in sweet potato compared to flat treatment with least value of 0.98gkg-1 and 8.10cmolkg-1 respectively. Tilled Plot of Beds recorded the highest value of cation exchange capacity (10.35), followed by plots of ridge (10.34), whereas, plots of No tillage gave the least meant value of 8.70. There was significant (p < 0.05) difference in bacteria, fungi and nematode counts. The plots with No tillage and Flat treatment gave the highest value of bacterial counts of 6.8 cfu/g and 5.3 cfu/g soil respectively, whereas Bed treatment recorded the least value. The fungi population was also highest on plots of No Tillage, while plots of mounds recorded the least value of 3.9. cfu/g soil. The nematode population was higher in plots of No tillage and Mounds, while Bed treatment recorded the least value. The results also showed that the sweet potato is significantly rich in protein and carbohydrate content, and low in fat content among Beds, mounds and ridge practices. Therefore, sweet potato requires Tillage as a practice for sustainable agriculture.
