Comparative Effect of Coated Urea Inhibitor and Poultry Manure on Soil Chemical Properties, Growth and Yield of Jute Mallow Varieties (Corchorus olitorius)
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Date
2024-12
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Abstract
A screen house and field trial was carried out on two varieties of jute mallow (Oniyaya
and Amugbadu) at Araromi Ilorin Kwara State and National Centre for Agricultural
Mechanization (NCAM) respectively during 2022 cropping season to compare the effect
of coated urea inhibitor and poultry manure on soil chemical properties, growth and
yield of jute mallow. Five treatments were used for both field and pot experiments. The
treatments comprised of control, urea, NPK, urea inhibitor, poultry manure at 45 kg N/ha
each replicated three times and fitted into a completely randomized design (CRD). Field
experiment was a randomized complete block design with three replicates. All fertilizers
used significantly enhanced the growth and dry matter yield of varieties of jute mallow
under screen house investigation. In the field study jute mallow yield values of Oniyaya
and Amugbadu were 3.8 and 3.6 t ha-1 respectively with poultry manure and these were
significantly (p< 0.05) higher than that of urea inhibitor treatment (2.6 and 3.5 t ha-1)
after the first cropping. Residual effect of jute mallow yield values obtained from poultry
manure was also significantly (p< 0.05) higher than that of urea inhibitor values. Poultry
manure at 45 kg N ha-1 had a significant and additive effect on soil nutrients after
harvesting of the two varieties of jute mallow when compared with urea inhibitor in first
and second cropping. Therefore, it can be deduced that application of poultry manure at
45 kg N ha-1increased soil productivity and led to higher jute mallow varieties yield than
using urea inhibitor.