Litterfall and decomposition are the two main processes accounting for soil enrichment in agroforestry. The extent of enrichment in soil properties depends on the tree species, management practices and the quantity and quality of litter. A field investigation was carried out to study litterfall production, decay rates, release of nutrients and consequent changes in soil physicochemical properties under crowns of four multipurpose tree species (MPTs) in irrigated conditions in farm fields. The species were Prosopis cineraria (L.), Dalbergia sissoo (Roxb.) ex DC, Acacia nilotica (L.) Del. and Acacia leucophloea (Roxb.) Willd. Annual accretion of litter ranged from 36 to 54 kg tree -1 year -1 and was highest under D. sissoo and lowest under A. nilotica. Total litterfall production was in the order:sissoo. P. cineraria showed the highest NPK concentration in litter. For all MPTs, a large pulse of litterfall coincided with the winter season (November to February). Litter of P. cineraria decomposed fastest while that of A. nilotica was slowest. More than 95% of the leaf litter of P. cineraria decomposed in 6 months, of D. sissoo in 7 months and A. leucophloea and A. nilotica in 9 months. Decomposition rate of litter was highly correlated with neutral detergent fibre (NDF) (r = -0.94) and P (r = -0.91) concentration. N, P and K release were best correlated with NDF, acid detergent fibre (ADF), P, lignin, lignin/N and C/P ratios and NDF alone explained 88% to 94% of the variability in litter decomposition and nutrient release rates. There was significant build up of soil organic carbon and available NPK in the agrisilvicultural systems but also a decrease in soil pH. Build up in soil fertility was significantly correlated with litterfall and soil improvement was greatest under P. cineraria.

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A field experiment was carried out during Kharif season of 2009 to study the effect of integrated nitrogen management through vermicompost, urea and Azotobacter on yield and economic of pearl millet [Pennisetum glaucum (L.) R. Br. emend. Stuntz]. The result revealed that application of 100 per cent RDN (75% through urea and 25% through vermicompost) significantly increased the growth, yield attributing characters and yield of pearl millet however, it was at par with 100 per cent RDN through urea. Inoculation of seed with Azotobacter also resulted significantly higher plant height at time of harvest, yield attributing characters and yield. Interaction effect between nitrogen management and biofertilizer was found significant in case of grain and straw yield. Application of 100 per cent RDN through 75 per cent urea and 25 per cent vermicompost along with seed treatment with Azotobacter recorded higher grain and straw yield however, the straw yield was at par with that of treatment 100 per cent RDN through urea with Azotobacter inoculation. Same treatment recorded higher net return and benefit : cost ratio.

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Purpose – The purpose of this article is to show the present condition and necessity of the Indian Citation Index (ICI) in India. Design/methodology/approach – This article covers all facilities, services and resources of the ICI. Findings – The ICI is the best way for researchers to search any Indian scholarly journal in different fields. Originality/value – This article shows the present status of this citation index.