Effects Of Single-Element Fertilizers And A Compound-Element Fertilizer On Cassava Maiiiizot Esculenia, Crantz) Cyanide

ABSTRACT

The effects of single element fertilizers: Muriate of potash, single super phosphate, urea and compound fertilizer NPK 15:15:15 on cassava Manihoi esculenta, Crantz) cyanide was investigated. The cassava variety TMR 8082 was cultivated in buckets and treated with different fertilizers at the rate of 0kg/ha, 200kg/ha, 300kg/ha, 400kg/ha and 500kg/ha per planting bucket. •The roots and fully expanded leaves were analysed to ascertain the free, bound and total cyanide content. The type of fertilizer used sigiiificantly affected (t P < 0.05) the cyanide content of the treated cassava seedlings. Though the quantity of fertilizer applied affected the cyanide content, the effect was not significant at (P < 0.05). The result generally indicated that the treatment lowers the hydrocyanic acid content of cassava. More so, the leaves of cassava seedlings contained more cyanogenic glycoside than the roots.