Influence of organo-chemical fertilizer mixed with hormones on yield of Zea mays (L.) and soil productivity


  • Agbesi Kwadzo KETEKU Naresuan University
  • Pumisak INTANON Naresuan University



fertilizers, grain yield, integrated nutrient management, soil properties, Zea mays


The effect of five fertilizers; NPK (15-15-15), organo-chemical hormone mixed formula 1 (HO-1), Formula 2 (HO-2), Formula 3 (HO-3) and granular organic fertilizer (GOF) were investigated on maize yield and soil properties in a Randomized Complete Block Design with 4 replications. The new hybrid maize (GT 822) was sown at 75 x 25 cm² spacing. The fertilizer rate was 300 kg ha-1. Initial soil analysis showed that the soil had a lower rate of nutrients but after the second season of trial a significant (p ≤ 0.05) improvement was observed in soil properties, the highest residual NPK of 0.875 %, 0.0275 %, and 0.0267 % were recorded in HO-3 plots. Vegetative data showed that maize height, dry matter, leaf area, and leaf chlorophyll of 270.85 cm, 282.66 g, 156.02 dm², and 56.70, respectively were also highest in HO-3 fertilizer. Plant growth indices; RGR, LAI, and dry matter use efficiency of 0.132 g g-1day-1, 5.90 and 34.4 %, respectively were best in HO-3. Grain yield and crude protein of 8276.68 kg ha-1 and 8.99 % were recorded in HO-3, followed by HO-2 and NPK. Lower yields were obtained from the control and GOF. Our finding revealed that the integration of nutrient sources in a balanced ratio produced the greatest yield output, improved soil properties, and is therefore the future approach to planning an effective fertilizer strategy. Reliance on GOF as a sole fertility package for maize production may result in significant yield losses compared to the integrated approach or use of NPK fertilizer.

Author Biographies

Agbesi Kwadzo KETEKU, Naresuan University

Faculty of Agriculture, Natural Resource and Environment

Pumisak INTANON, Naresuan University

Faculty of Agriculture, Natural Resource and Environment


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How to Cite

KETEKU, A. K., & INTANON, P. (2022). Influence of organo-chemical fertilizer mixed with hormones on yield of Zea mays (L.) and soil productivity. Acta Agriculturae Slovenica, 118(4), 1–10.



Original Scientific Article