Effect of organic fertilizers made from slaughterhouse wastes on yield of crops

Abstract

Possible agricultural utilization of four different processed slaughterhouse waste composts and meat powder was examined in a field experiment in 2002-2008. The trial was set up with different crops on a calcareous sandy soil. The site was prone to drought. The soil was weakly supplied with N, P and K. Composts were applied once at five levels (0, 25, 50, 100, 200 t ha 71 fresh compost and 0, 2.5, 5.0, 10, 20 t ha 71 meat powder) in four replications. The fertilizing effect of these byproducts was pronounced. Their N, P, Ca, Zn and Cu content might be many fold compared to manure. In the year of application, the 25 and 50 t ha 71 doses showed only slight positive effects on yield, partly due to drought. Extreme doses (100-200 t ha 71 ) of immature compost and semi-mature compost combined with dry weather in 2002 and 2003 (483 and 337 mm year 71 precipitation) caused depressions. Residual effects of composts were pronounced in 2004 when the triticale yield increased threefold compared to control. In the following years, the residual effects decreased, so the meat powder lost its effect after 2007, but immature and semi-mature composts significantly raised the yield even in 2008.

Conversion of rural abattoir wastes to an organic fertilizer and its application in the field cultivation of tomato in India

“…in Hungary (Ragályi and Kádár, 2012). The hazardous slaughterhouse waste became a nonhazardous product following heat treatment making soil application possible (Ragályi and Kádár, 2012). Slaughterhouse waste compost was applied to sugar beet ( Beta vulgaris L. var.…”

Agronomic Efficiency of Animal-Derived Organic Fertilizers and Their Effects on Biology and Fertility of Soil: A Review

“…In contrast, PM addition did not affect maize yield satisfactorily as reported by Busari et al [116]. On the other hand, Ragályi and Kádár [54] preferred fertilization with composted cattle waste (CCW) at a 25-50 t ha −1 application rate instead of chemical use for higher triticale production in Hungary. After three years, Nunes et al [44] cultivated soybean and maize plants with the same fertilizer at different dosages (0, 4, 8, 12 and 16 t ha −1 ) and found a quadratic relationship between the crop yield and fertilization rate.…”

“…Authors reported 0.2 to 0.5 t ha −1 productivity, which was higher than the control as well as urea-treated residual plots. Ragályi and Kádár [54] provided evidence of greater residual fertility in soils treated with CCW even after 3-4 years of cultivation. Recently, Bhunia et al [15] proved that dried animal waste was residually more efficient than the soils treated with chemical fertilizers and market available vermicomposts.…”

“…Animal waste composting can be considered beneficial in terms of the microbial stabilization, pathogen inactivation, moisture reduction and good fertilizer quality of the end product [53]. Ragályi and Kádár [54] applied slaughterhouse compost as fertilizer in agriculture. Poultry hatchery waste comprised of infertile eggs, dead chickens, decaying tissues and blood contaminated wastewater which contained 1% N, 2.5% P and 0.2% K when it was composted with poultry litter as reviewed by Glatz et al [55], while Nunes et al [44] found 18.2% organic C, 1.8% N and 2% P in cattle manure compost.…”

From waste to wealth: Repurposing slaughterhouse waste for xenotransplantation

“…The most common method used to repurpose slaughterhouse waste involves their conversion by rendering plants into industrial byproducts such as fats and oils, in the form of lard and tallow (Chakraborty et al, 2014), fertilizers derived from organic compost (Darch et al, 2019), biogas through methane production (Ware and Power, 2016), and animal feed as meat powder (Ragályi and Kádár, 2012), as shown in Figure 1. Yet, given stricter regulations on the processing of carcasses, rendering has become costly (Franke-Whittle and Insam, 2013).…”