Environmental assay on the effect of poultry manure application on soil organisms in agroecosystems

Abstract

Keywords:Poultry manure Multi-Species Soil System Enzymatic activities This paper reports the effects produced on the organisms of the soil (plants, invertebrates and microorganisms), after the application of two types of poultry manure (sawdust and straw bed) on an agricultural land. The test was made using a terrestrial microcosm, Multi-Species Soil System (MS3) developed in INIA. There was no difference in the germination for any of the three species of plants considered in the study. The biomass was increased in the wheat (Triticum aestivum) coming from ground treated with both kinds of poultry manure. Oilseed rape (Brasica rapa) was not affected and regarding vetch (Vida sativa) only straw poultry manure showed significant difference. For length only Vicia sativa was affected showing a reduction when straw was exposed to poultry manure. When the effect on invertebrates was studied, we observed a reduction in the number of worms during the test, especially from the ground control (13.7%), higher than in the ground with sawdust poultry manure (6.7%), whereas in the ground with straw poultry manure, there was no reduction. The biomass was affected and at the end of the test it was observed that while the reduction of worms in the ground control was about 48%, the number of those that were in the ground with sawdust poultry manure or straw poultry manure decreased by 41% and 22% respectively. Finally, the effects on microorganisms showed that the enzymatic activities: dehydrogenase (DH) and phosphatase and basal respiration rate increased at the beginning of the test, and the differences were statistically significant compared with the values of the control group. During the test, all these parameters decreased (except DH activities) but they were always higher than in the ground control. This is why it is possible to deduce that the contribution of poultry manure caused an improvement in the conditions of fertilization and also for the soil.

Effect of poultry manure on the yield and nutriments uptake of potato under saline conditions of arid regions

“…These results are supported by several studies reporting that PM markedly increases K + and N concentrations in leaves and roots of potato (Demir et al, 2010;Delgado et al, 2012).…”

“…Therefore, the improvement of yield parameters may be explained by the rapid and continuous release of nitrogen, potassium and phosphorus from this manure, which satisfied nutritional needs of potato during all stages for its development cycle. Especially since these nutriments are present in the poultry manure under a readily available form for plant uptake (ElTantawy et al, 2009;Delgado et al, 2012).…”

<b>Enteropathogenic bacterial contamination of a latosol following application of organic fertilizer

“…assay, a 10 g aliquot of the wet sample was homogenized in 90 mL of 1% peptone water and incubated at 36±1˚C for 18 to 24 hours. After preenrichment, the sample was inoculated in selective broths and plated onto selective and differential agars; genetically compatible colonies were confirmed through biochemical and serological tests (DOWNES; ITO, 2001). …”

“…As a result of the increased generation of these residues, their application as fertilizer has increasingly been the subject of environmental (DELGADO et al, 2012;GALLOWAY et al, 2003;HOULBROOKE et al, 2004) and agronomic (MAGUIRE et al, 2011) studies. The generation of poultry manure is increasing as the egg industry grows in response to domestic and international markets, enabling the application of raw (untreated) manure as fertilizer for agricultural soils (DEMIR et al, 2010;FIGUEROA et al, 2012). Studies by Demir et al (2010) and Figueroa et al (2012) demonstrate the beneficial effects of the application of organic fertilizers including of the application of Acta Scientiarum.…”

“…The generation of poultry manure is increasing as the egg industry grows in response to domestic and international markets, enabling the application of raw (untreated) manure as fertilizer for agricultural soils (DEMIR et al, 2010;FIGUEROA et al, 2012). Studies by Demir et al (2010) and Figueroa et al (2012) demonstrate the beneficial effects of the application of organic fertilizers including of the application of Acta Scientiarum. Agronomy Maringá, v. 37, n. 4, p. 517-523, Oct.- Dec, 2015 poultry manure in high doses (tons per ha), which has a low concentration of nutrients compared to mineral fertilizers.…”