Browsing by Author "Murari Sharma"

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    Allelopathic Influence of Some Tree Special Commonly Integrated With Agricultural
    (Birsa Agricultural University, Ranchi, 2006) Murari Sharma; R.P. Singh
    The present investigation was conducted on the Allopathic influence of leaves of some tree species commonly integrated with agricultural crops in agroforestry practices at faculty of forestry (BAU), Ranchi in a completely Randomized Design (CRD) with three replications. The experiment was conducted to know the allopathic effect by leaf powder of three tree species namely leucaena leucocephala (Subabul), Dalbergia sisso (Sissoo) and Gmelina arborea (Gamhar) on three agricultural crops Phaseolus vulgaris (French bean) Phaseplus aureus (Green Gram) and Phaseolus mango (Black Gram). The treatment concentrations of tree leaf powder(1.25%,2.50% and 3.75%) was given on agricultural crops at fifteen days after sowing (15 DAS). Allelopathic effect of leaf powder of tree species on agricultural crops at different concentrations were found significant because in control better growth was obtained, while in treatment reduction or inhibitory trend was seen . Subabul leaf powder performed more allelopathic effect as compared to other two tree species. Sissoo and Gamhar. As high concentration (3.75%) more pronounced effect than lower concentration (1.25%) is found . The cumulative out come had indicated that in an agroforestry system allopathic effect has found having trees crops combination. The effect on germination and survival of agricultural crops was found non- significant in all the treatment concentrations (1.25%, 2.50% and 3.75%). However, with higher concentration of subabul less germination and survival percentage was noticed. The growth performance of French bean, Black Gram, And Green Gram measured in term of vigour index was found maximum as 76.1.85, 6108.88 and 8508.14 for control respectively, whereas minimum value was noticed for Subabul, Subabul and sissoo with 3.75% as 43.58.28.