Marcela S Icalla | Christian B Apostol
Rice hull is considered waste from rice milling and disposal is a problem. However, this waste material can have economic value if used as a soil amender. This study was conducted in MinSCAT experimental area to determine which of CRH or biochar (Factor A) applied in 10t/ha will have an impact on the yield of two cassava varieties (Factor B). Using RCBD in 3x2 factorial experiment, it was found out that cassava planted in no amender had significantly lower yield compared to the plants grown in soil with an amendment. Further, CRH and biochar applied as amender had a comparable effect on tuber circumference and number of tuber harvested per plant but not in length and weight of harvested roots. Lakan 1 grown in CRH and biochar had 12.01% and 11.45% increase in yield respectively compared with no soil amender. Lakan 2, had 11.65% and 12.11% increase in yield if grown in CRH and biochar, respectively. Statistical analysis revealed that Lakan 1 is superior compared to Lakan 2 in terms of all parameters used except for yield per hectare. The result of this study showed that either CRH or biochar amender had a positive impact on the yield of cassava.
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