10.1007/s40093-017-0192-4

Influence of compost supplemented with jatropha cake on soilfertility, growth, and yield of maize (zea mays L.) in a degraded soilof Ilorin, Nigeria

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  • Adebayo Abayomi Olowoake*1,
  • Oluremi Solomon Osunlola1,
  • James Adebayo Ojo1,
  1. Department of Crop Production, Kwara State University, Malete, Nigeria

Received: 2017-06-28

Accepted: 2017-12-23

Published in Issue 2018-01-17

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Abayomi Olowoake, A., Solomon Osunlola, O., & Adebayo Ojo, J. (2018). Influence of compost supplemented with jatropha cake on soilfertility, growth, and yield of maize (zea mays L.) in a degraded soilof Ilorin, Nigeria. International Journal of Recycling of Organic Waste in Agriculture, 7(1). https://doi.org/10.1007/s40093-017-0192-4
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Abstract

Purpose This study was conducted to determine the effect of compost supplemented with jatropha cake on maize (Zea mays
L) yield in a degraded soil and their residual effects on soil fertility in Ilorin, Nigeria.
Methods Field trials were conducted at Kwara State University Teaching and Research Farm, Malete, in 2016/2017 cropping
season. The treatments consisted of control, un-amended compost Grade B supplemented with Jatropha cake AJ (30%
Grade B + 70% JC) at 1.5 t/ha, BJ (30% Grade B + 70% JC) at 2.0 t/ha, CJ (50% Grade B + 50% JC) at 2.5 t/ha including
NPK at 60 kg N/ha. The treatments were arranged in a randomized complete block design (RCBD) and replicated three times.
Results Maize grain yield (3.1 t/ha) was obtained from CJ at 2.5 t/ha this was significantly (p < 0.05) greater than that of
NPK treatment (2.2 t/ha) after the first cropping. At second trials, maize grain yield values gotten from CJ at 2.5 t/ha were
also significantly (p < 0.05) greater than that of NPK values. Treatments CJ at 2.5 t/ha significantly (p < 0.05) improved
soil pH, available P and exchangeable K.
Conclusion Fertilizer 50% Grade B + 50% Jatropha cake at 2.5 t/ha had a significant and positive effect on soil fertility after
harvesting of maize when compared with NPK in both cropping.

Keywords

  • Amended compost,
  • Degraded soil,
  • Fertilizer,
  • Jatropha cake,
  • Maize yield,
  • Un-amended compost
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