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The organism which add nitrogen to the s...

The organism which add nitrogen to the soil is

A

Mucor

B

Rhizobium

C

Blue green algae

D

Both B and C

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In order to maintain soil fertility , it is necessary to add containing nitrogen , phosphorous and potassium in the form of manures. Manures are two type they are a ) Natural and b) Artificial , Artifical manures are chemical compounds obtained by artificial mean containing N,P or K. These chemical compounds are generally called fertilizers. The chemical substance which are added to the soil as to make up the deficiency of essential elements are called fertilizers. Every chemical compounds of N,P , & K can be used as fertilizer and it must have chracteristic properties. Fertilizers are classified according to the element (N,P or K) which they are supplied to the soild. Super phosphate of lime is obtained by treating

What organisms were found in the soil, when the soil was observed carefully with hand lens?

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  8. What are the adverse effects of using high yielding varieties of seeds...

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  11. What basis would you adopt a farmer using chemical fertilizers switch ...

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  13. The farmer had been using a particular insecticide for a long time. Wh...

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  14. Venkatapuram village is in drought prone area. Somaiah wants to cultiv...

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  15. Draw a block diagram of water resources in your village.

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  16. Ramaiah has done soil testing in his field. The percentage of nutrient...

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  17. Organic manure is helpful to biodiversity. How do you support the stat...

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  18. Make a list of the major weeds in your area (you have already conducte...

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