Question

why is newer alluvial soil fertile ?

Answer 1

Hey,

Alluvial soil is formed by very fine fractions like clay and silt carried down the slope in the riverbed and the turbidity settles down as deposit in lower plains.

Backwaters of sea also help in coagulation/precipitation.

Anyway the clay and silt contain secondary clay minerals which carry nutrients in exchangeable form not easily dissolved nor washed.

Only plant roots can extrat those nutrients from the exchange complex by their extracts.

HOPE IT HELPS YOU:-))

Answer 2

RĀM RĀM jĪ ♥ ♥

ĀñswĒR ⏬⏬

⭕ ALLUVIAL SoIL :

◽Alluvial soils are those which are formed as a result of deposition of sediments by rivers.

◽Alluvial soils are poor in nitrogen and phosphorus but rich in potash.

◽These soils have low organic matter.

◽ It has moisture retentive capacity.

◽ It is a mixture of sand, clay and silt called loam.

◽is formed by the sediments brought down by rivers. 

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#NaVI ♥HARYAnVi