Author(s):

Shweta Priya, JP Upadhyay, Archana Bala and Rahul Kumar

Abstract: Fungus is the 2^nd largest group in the world after insects. Their antiquity, longevity, ubiquitous distribution in the bio-sphere and their ability to adjust to a wide range of environmental condition had made them the most successful organisms. Enumeration of different physical, chemical and fungal distribution with special reference to population of Trichoderma species in soils of Krishi Vigyan Kendra (KVK) Birauli (Samastipur) of Zone I of Bihar was carried out in the present investigation. The fungal flora were isolated from the four soil samples which was collected from two cultivated field, one from orchard and one from vegetable plot of local farmer. Two soil samples of cultivated field was taken from the plot intercropped with turmeric (Curcuma longa), arvi (Acacia cyanophylla ), ginger (Zingiber officinale), sole crop of dhaincha (Sesbania bispinosa) and one from litchi (Litchi chinensis) orchard and one from elephant foot yam or ol (Amorphophallus campanulatus) as vegetable soil of local farmer. Soil samples from the intercropped plot and litchi orchard and elephant foot yam or ol (Amorphophallus campanulatus) plot had sandy loam to silt loam texture. The pH of all soil samples was near to neutral or alkaline (7.9 to 8.1). Maximum fungal population was recorded in soil of litchi orchard (12.33 X 103 cfu/g soil). Trichoderma was recorded frequently in most of the soil samples. The species of Trichoderma viz., Trichoderma harzianum and Trichoderma viride were isolated from the soil samples of KVK, Birauli.

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