Open Access Open Access  Restricted Access Subscription or Fee Access

Soil Physico-Chemical Properties, Herbaceous Species Diversity and Biomass in a Nitrogen Fertilization Experiment

Punita Verma, R. Sagar, Preeti Verma, D.K. Singh, H. Verma


Nitrogen (N) deposition in biosphere due to anthropogenic activities and its consequences on soil and vegetation is a global issue. In this study, we ask: (i) Do N fertilizations affect soil elements, species diversity, biomass and productivity in a herbaceous vegetation? And (ii) Does heterogeneity in soil property enhances the species diversity and biomass in N addition experiment? In this study, 15 sites, each having nine 1×1m plots, were established in this study in the campus of Banaras Hindu University, India. These plots were equally categorized in three groups The plots of group one were kept as control, the plots of group two were treated with 60 kg N ha-1yr-1 and the plots of group three were treated with 120 kg N ha-1yr-1. The plots were continuously treated with urea fertilizer from year 2007. In years 2009 and 2010, for each treatment level, soil physico-chemical properties, herbaceous diversity, biomass and productivity were estimated using standard methods. The data were subjected to proper statistical analyses. Study indicated that continuous N treatment lowered the soil pH and increased the biomass and productivity. Moderate N dose (60 kg N ha-1 yr-1) experienced maximum diversity and heterogeneity in soil property. Further, results also suggested that under the condition of N treatments over several years, the spatial heterogeneity in soil property may support the herbaceous diversity and biomass for proper functioning of the ecosystems.


Biomass, soil heterogeneity, N-application, Soil physico-chemical properties, Species diversity

Full Text:


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.