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Free AGRICULTURE answers at naijacrawl.com [ STAY TUNE ]

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Free AGRICULTURE answers at naijacrawl.

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AGRIC SPECIMENS
A: sandy soil
B: loamy soil
C: clayey soil
D: granite
E: NPK 15 : 15 (labelled)
F: wood ash (unsieved)
G: limestone (labelled)
H: cow dung
I: wheelbarraw
J; file
K: palm oil
L: cotton lint
M: liverfluke
N: tick
O: feather
P: apid (live/preserved,diagram,photograph)
Q: cowpea seeds
R: coconut fruit
S: tridax
T: chicken
U: tilapia fish

SPECIMEN A
[SANDYSOIL]it containsgravelcoarse sandfine sand and limited amount of siltCharacteristics of specimen a
1.it is grey and brownish in colour.
2.its particles are large
.3it has lower water retentioncapacity
4.it is not pliable or plastic so it cannot form structure.
5.it has large pore spaces andtherefore are wild aerated

Economic importance of specimena.
1.easy to work on or plough upon.
2.easily washed away or leached
3.prevents watere loging
4.easily heat up
5.well aerated
6.has low PH value hence likelyacidic
7.support growth of waterSPECIMEN B[LOAMY SOIL]it containsfair balance ofclay silt and sand particles.

CHARACTERISTICS OF SPECIMEN B
1.it is dark brownor black in colour
2.it is not as coarse as sand nor assmooth as clay
3.it has moderate speed porespace
4.it contains organic matters orresidue
5.the rate of water percolaton ismoderate

ECONOMICS IMPORTANCE OFSPECIMEN B
1.moderate water absorbing andholding capacity
2.it contains organic matter which issource of plantnutrients when decomposed
3.easy to work or plough upon
4.does not easily loose its nutrientsthrough leaching
5well aerated for root respirationand development.
6.best soil for crop cultivationexmple maize rice cassavaokro tomato and millet.SPECIMEN C[CLAY SOIL]the particlesare predominatedby clay consisting of about 60%

CHARACTERISTICS OF SPECIMEN C
1.it contains small fine poudrycompact particles.
2.it is smooth and velvet
3.the pore space hence not wellaerated
4.has low water retention.
5grey or brownish in colour
6.friable or plastic or easy tomould.

ECONOMIC IMPORTANCE.OFSPECIMEN C
1.difficult to work on or plough
2.poorly aerated
3.easily lodged by water.
4.not easily leached
5.not easily heated
6.supports growth

DIFFERENCE BETWEEN SPECIMENAAND C

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