Influence of inorganic fertilizers and organic amendments on soil organic matter and soil microbial properties under tropical conditions

Assessment of EDTA heap leaching of an agricultural soil highly contaminated with heavy metals

“…Compared to CaMgP the further amendment with organic fertilizer did not change soil DTPA-extractable metals (Table 5). Nevertheless, the application of organic fertilizer could improve soil structure, conserve the nutrients in soil, and enhance the soil microbial biomass, activity and diversity, which in turn improved the crop growth and restrained metal toxicity (Goyal et al, 1999;Jilani et al, 2007;Zhang et al, 2012).…”

Organic and inorganic fertilizer application enhances the effect of Bradyrhizobium on nodulation and yield of peanut (Arachis hypogea L.) in nutrient depleted and sandy soils of Ethiopia

“…The addition of fertilizers with intermediate quality organic inputs may increase organic matter decomposition (Sakala et al 2000;Zingore et al 2003) and, thus, enhances the crop production. Animal manures and composts have shown in several trials to increase nutrient availability and to partly substitute mineral fertilizers (Goyal et al 1999). However, availability of manure in smallholder farms was generally lower in Ethiopia (Lupwayi et al 2000).…”

Phytogeography and Invasion Spread of Chromolaena odorata (L.) R.M. King et H. Rob. in the Western Himalaya, India

“…In our research we aim at understanding how this invasive alien spe cies influence soil processes, to see this we collected soil samples from plots where C. odorata invasion was high and also from adjacent plots not invaded by this weed. In some stu dies the significant increases of SOC and total N was re cor ded under the fallow within the 0-10 cm layer further revealing the potential of C. odorata from all the fallow lands (Tondoh et al 2013) this was well supported by the find ings of Goyal et al (1999) and Manjaiah et al (2000) where increased SOC and N was recognized as a key attri bute of soil quality and a deciding factor for C. odorata invasion. The present study also supports the above mentioned findings by recording an elevated level of the soil nutrients includ ing SOM and N in all the invaded sites from the non in vaded sites, but contrary to the previous studies mentioned above, the current study overtly suggest that C. odorata has high fertilizing and sound potentials for building soil or ganic matter (SOM) to adequate levels that will surely meet nutritional needs of different herbs and shrub species and will surely improve the nutrient element status of Doon val ley forests.…”