Effects of Abattoir Effluent as Biofertilizer on Pisum sativum Yield

Abstract

Biological preparation containing live or latent cell of microorganisms or their metabolites, which when inoculated to seed, soil or roots of seedlings, promote plant growth and enhance harvestable yield is termed as Biofertilizers. This research was conducted to determine the growth promoting effect of some selected bacteria on pea plants. A comparative study on the effect of biofertilizers and chemical fertilizers was done on growth parameters in pea plant. An experiment was conducted in Randomized Complex Block Design (RCBD) with three replicates. The treatment were (T1=Control, T2=Biofertilizer, T3=Chemical fertilizer). Biofertilizer used in this study was abattoir effluent and chemical fertilizer was NPK fertilizers. The material consisted of two cultivars of Pisum sativum species. Pea seeds were planted in (21) polythene bags and left to grow to a reasonable height after which different levels of biofertilizers and chemical fertilizers were added. Biofertilizers levels of 50ml, 100ml, 150ml and chemical fertilizer of 1g, 2g and 3g were added respectively, and the procedure was repeated for twelve of the remaining polythene bags to serve as replicates while the last three polythene bags were left without fertilizer application to serve as control plant. The plants were left to develop to maturity after which growth parameters of height, number of leaves, leaf area and plant dry weight were measured for each plant as a determinant of growth. Biofertilizers had the best performance when compare with chemical fertilizers. 100ml of biofertilizers had the highest growth rate and 50ml had the least when compared to the control. Chemical fertilizers had significant difference on height, number of leaves, leaf area and however insignificant on biomass when compared to control pea plant as LSD was greater than mean difference. According to this study using biofertilizer has increased growth and growth component of pea significantly. Biofertilizers level of 100ml should therefore be adopted by farmers so as to get the maximum yield and bioconversion of organic wastes into value added organic/biofertilizers at local level should be done.