GASPRO International Journal of Eminent Scholars

ABSTRACT

A field study was conducted to determine the effect of application of Nitrogen and phosphorus fertilizers and mixture of both fertilizers on the growth of Senna siamea. The result showed variation in growth and response to different fertilizer (KH₂Po₄, KHNO₃, KH₂PO₄ & KHNO₃) application on Senna siamea. There was significant improvement on the height and girth of Senna siamea by the application of KHNO₃ and KH₂PO₄ which resulted in taller plants. KHNO₃ application significantly (P<0.05) improved the leaf, stem and root dry weight of Senna siamea than combined KH₂PO₄ and KHNO₃. This suggests that the applications of KHNO₃ and KH₂PO₄ can enhance the growth of some economic crops.

KEYWORDS: Nitrogen fertilizer, Phosphorus fertilizer, Growth, Senna siamea