Research on Azotobacter chroococcum spp. in crop production has manifested its significance in plant nutrition and its contribution to soil fertility. The possibility of using Azotobacter chroococcum in research experiments as microbial inoculant through production of growth substances and their effects on the plant has markedly enhanced crop production in agriculture. Being soil bacteria, Azotobacteria genus synthesizes auxins, cytokinins, and GA–like substances, and these growth materials are the primary substances controlling the enhanced growth. These hormonal substances, which originate from the rhizosphere or root surface, affect the growth of the closely associated higher plants. In order to guarantee the high effectiveness of inoculants and microbiological fertilizers it is necessary to find the compatible partners, i.e. a particular plant genotype and a particular Azotobacter strain that will form a good association.
The field experiments were conducted at Agronomy Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir during 2009 and 2010, to
A field experiment was conducted during the <italic>rabi</italic> season 2004-05 in a sandy clay loam soil to study the effect of inorganic fertilizers, organic manure and bio-fertilizers on growth, yield attributes and yield of field pea (<italic>Pisum Sativum</italic> L). It was observed that with increasing levels of inorganic fertilizers increased growth, yield and yield attributing characters. Farm yard manure @ 20 t ha<sup>−1</sup> and <italic>Rhizobium</italic> inoculation significantly increased the plant height (cm), number of branches per plant, number of leaves per plant, root length (cm), pod per plant, pod length (cm), seed per pod, test weight, dry matter production, seed and stover yield over control.
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