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Dalal V.,CCS Haryana Agricultural University | Kaushik N.,CCS Haryana Agricultural University | Kaushik N.,Regional Research Station | Bhardwaj K.K.,CCS Haryana Agricultural University | And 3 more authors.
Annals of Biology | Year: 2015

An experiment was conducted in 10 years old silvi-horti systems comprising shisham (Dalbergia sissoo)+aonla (Embilica officinalis), shisham (D. sissoo)+guava (Psidium guajava), khejri (Prosopis cineraria)+aonla (E. officinalis) and khejri (P. cineraria)+guava (P. guajava) planted at a spacing of 6 × 6 m. The winter crops viz., wheat (Triticum aestivum), barley (Hordeum vulgare L.) and oat (Avena sativa) were raised in interspaces of the silvi-horti systems. Electrical conductivity, pH and organic carbon of soil decreased with increasing soil depth. The lowest EC in wheat, barley and oat was recorded under guzva+khejri silvi-horti system. The system showed significantly higher reduction as compared to sole crops. The organic carbon content in soil under agri-silvi-horticulture system was significantly higher and decreased with the increase in soil depth. The available N, P and K were highest at surface layer of guava+khejri and minimum in sole crops. The available N, P and K decreased with the increase in depth. Guava+khejri silvi-horti system was found best for improving the soil quality. The study demonstrated the importance of agroforestry systems (agri-silvi-horti) for enhanced soil fertility in 10-year old system under semi-arid agro-climatic conditions in light textured loamy sand soils of north-west India.

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