Influence of Different Manure on Cucumber (Cucumis sativus) Growth and Yield Parameters in Lafia, Southern Guinea Savannah, Nigeria

Abstract

A study was conducted at the Teaching and Research Farm of Nasarawa State University’s Faculty of Agriculture in Shabu, Lafia, Nigeria, to evaluate the effects of different organic manure amendments on cucumber growth and yield. Chemical analysis showed that poultry manure had the highest levels of organic matter and nitrogen, essential nutrients for plants. Biochar exhibited a high pH and carbon content. Key growth parameters, vine length and days to 50% flowering, and yield parameters were evaluated. The results indicated that biochar applied at 4.0 t/ha significantly enhanced vegetative growth, with vine lengths significantly increased at 6 and 9 weeks after planting. Poultry manure at 5.0 t/ha caused a slight delay in flowering time. Biochar at 4.0 t/ha produced the best results, with the longest fruits, largest diameters, and the highest number of fruits per plant. This treatment achieved a highest yield of 13.93 t/ha. Poultry manure also improved yield parameters but not as much as biochar. Cow manure had comparatively minimal effects. The enhanced growth and yield observed with these amendments are attributed to improved nutrient availability which probably supported plant development. The study concludes that applying biochar or poultry manure can sustainably improve cucumber production in Lafia, making them viable options for sustainable cultivation of cucumber in the study area.