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Define the role of Bacteria in soil flora
The most abundant soil organisms are primitive, very minute, unicellular organisms devoid of chlorophyll. Bacteria are most abundant in soil with an average mass of about 1.5 x 10- 12g. Some 300 to 3000 kg of live bacteria are present in every hectare of surface soil. Most of the bacterial cells remain adsorbed on the clay particles and humus part of soil. Their number in a soil depends upon the type of soil and the climatic conditions. Bacteria, in general, prefer near neutral to slightly alkaline medium, between pH 6.5 to 8.00 for their growth. Soil bacteria may be heterotrophic, obtaining their energy and carbon from complex organic substances or autotrophic, obtaining their energy from the oxidation of the organic compounds, their carbon from the carbon dioxide, their nitrogen and other minerals from inorganic compounds.
Define the uses of buffer method The buffer method of Shoemaker and coworkers for determining lime requirement is being widely used in India. In this method 5g of soil is added
Obesity : Generally, fat people think that their overweight is due to their constitution and for heredity. It could be true in some cases. But have you ever come across a fat labou
Cycling of materials in ecosystem: Living organisms require four nutrients in relatively large amounts, these are carbon. oxygen, nitrogen and hydrogen. They also require phosp
Explain Inspiratory Capacity and Expiratory Reserve Volume Inspiratory Capacity (IC): It is the tidal volume and the volume of air taken during maximum inspiratory effort.
Explain in detail about the Sedimentary rocks Sedimentary rocks are formed from the breakdown of igneous rocks. These rocks are broken apart by plant roots, ice wedges, and
why sea water have high salinity compared with pond water
Making a 'gusher' with compressed air Secure a large narrow-necked bottle like as is used for soda water. Place a single-hole stopper in the bottle. By the stopper put a 10- cm
Determine the Agronomic factors of fertilizers These factors are key to efficient use of fertilizers for crop production and include fertilizer responsiveness of crops, spacing
Describe the differences between tumor staging and tumor grading, and how each is performed. Relate the role of your particular imaging modality in staging and or grading, if any
where did people come from
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