Investigation of Physical-Mechanical Properties and Impact on Soil of Granulated Manure Com-Post Fertilizers

Abstract

In recent years, the European countries recycle only 5−7% of bio-waste. One activity of the biological waste disposal is granulation. The production of fertilizer from animal manure with supplement represents an important area of environmentally friendly bio-fertilizer production. This paper presents an investigation of estimation manure compost physical-mechanical properties for reuse of organic waste − cattle and cow manure, sugar production waste − molasses through new technology pellets production and of granulated fertilizer impact on soil. The experimental manure samples produced by industrial methods and samples produced in the laboratory from the time period of 2014 to 2017 were investigated. The following physical – mechanical characteristics were estimated: biometric indicators (dimensions, mass), volume and density of raw material and pellets, material and pellet’s humidity and pellets strength. Experiments results have shown that the difference in limit strength between experimental and industrial organic compost pellets was about 5%. Experiments of fertilizers on the impact on soil shown that the amount of nutrients added to the soil depends on the rate of the granulated compost fertilizer. As the norm increases, organic carbon, humus, mobile phosphorus and potassium increase in soil. Increases in soil fertility, improved agrochemical properties, soil organic matter accumulation and humus increase. Granulated compost fertilizers have no effect on soil acidity. The presented results could be helpful to the development of the fertilizing process by the granulated compost fertilizer for improvement of soil quality in small farms.

Development of Organic Briquettes from Slaughterhouse Waste as Nutrient Source for Plant Growth

“…The C: N ratio was the highest for T1 (43.44±4.50) and the lowest for T10 (24.29±1.05) as seen in Table 1. Organic briquettes made of bovine blood and rumen contents had a C: N ratio of 4.8 [27], while granulated cattle manure compost had a C: N ratio of 17 [28]. The values observed in the present study was higher than the values mentioned in the above reports.…”

Simulation of Granular Organic Fertilizer Application by Centrifugal Spreader

“…Granular fertilizers made of organic material, i.e., poultry manure composted in cylindrical pellets, are used in this research. The properties of these pellets, such as dry matter, particle density, granular diameter, granular length and friction coefficient, were estimated by experimental research [17] in Lithuania, in a laboratory based at the Institute of Agricultural Engineering and Safety of Agriculture Academy of Vytautas Magnus University. Cylindrical-shaped granular organic fertilizer particles were manually selected for spreading simulation.…”

“…Cylindrical-shaped granular organic fertilizer particles were manually selected for spreading simulation. Ten granules were randomly picked to obtain the average value and error of the physical and biometric parameters of the granules [17]. Numerous studies have described in detail the methods of studying the physical-mechanical properties of fertilizer granules [11,16].…”

The main plant mineral nutrition balance on using ecological fertilizers

“…Higher crop yields also result in more nutrient losses that do not return to the soil (Wood et al, 2018;Pekarskas, 2012). Inserted organic fertilizers not only provide nutrients for agricultural crops during the vegetation time, but also the supplement to the soil humus (Mieldažys et al, 2019;H-Kattoof et al, 2019). The small K amount of sapropel fertilizer added did not ensure a positive balance, which may, in the short future, only mean decreasing of the soil organic matter.…”