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PQ43 Étude des sols du comté de Nicolet - IRDA

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102 ETUDE DES SOL~ DU COMTÉ DE NICOLET<br />

rYPE<br />

RÉSULTATS ANALYTIQUES<br />

Paroisse et numéro St-Pierre-les- Gentilly St-Samuel<br />

<strong>de</strong> i’echantillon: Becquets (28) (31) (35)<br />

.....................<br />

Terre franche argileuse <strong>de</strong> Levrard<br />

Vo DE LABORATOIRE ....... 19224 19225 19226 19227 19228 19229 19339 19340 19341<br />

~ORI~ON .................. AC G C Ac G C Ac G C<br />

?ROFOAUR EN POUCES ..... O-7 7-15 15+ o-a a-15 15+ O-6 6-12 12+<br />

ANALYSE PHYSIQUE ......... yO yO yO yO yO yO yO yO yO<br />

Detritus. ..... .: ..... 0.0 0.0 0.p 0.0 ‘0.0 0.0 0.0 0.0 0.0<br />

Sable. ............... 39.6 48.0 23.6 38.0 28.0 22.0 24.4 24.4 14.4<br />

Limon ............... 36.4 8.4 27.6 34.0 32.4 30.4 48.8 46.4 36.8<br />

Argile. .............. 24.0 43.6 48.0 28.0 39.6 47.6 26.8 29.2 48.8<br />

Humidité. ........... 2.3 2.6 2.4 1.5 2.6 2.9 1.3 0.6 1.2<br />

Perte au feu. ......... 7.5 2.6 2.4 4.8 2.5 2.5 6.9 4.8 2.6<br />

C organique. ......... 3.39 0.31 0.18 2.00 0.30 0.18 3.20 1.93 0.1<br />

Mat&e organique. .... 5.84 O.S3 0.31 3.44 0.52 0.31 5.51 3.32 0.3<br />

ANALYSE CHIMIQUE:<br />

SiO* ................. 66.9 66.4 65.8 69.2 66.7 65.1 71.0 73.4 66.0<br />

R20a ................ 19.1 22.0 22.4 18.6 22.5 23.6 17.7 18.0 23.4<br />

Ca0 ................. 2.09 2.5a 2.70 2.56 2.63 2.77 2.19 2.02 2.4<br />

Mgo. ............... 1.20 1.85 2.07 1.29 1.84 2.38 1.17 0.31 0.5<br />

KS0 ................. 2.27 2.43 2.51 2.25 2.40 2.52 2.27 2.18 2.7<br />

MnW. .............. 0.05 0.12 0.09 0.07 0.08 0.14 0.05 0.04 0.1<br />

P206 ................ 0.08 0.09 0.14 0.09 0.10 0.10 0.10 0.10 0.0<br />

N ................... 0.22 0.03 0.02 0.17 0.04 0.03 0.26 0.14 0.0<br />

RÉACTION:<br />

pH .................. 5.3 6.3 6.6 5.7 6.8 7.0 5.7 5.9 7.S<br />

Besoin en CaC03<br />

livres par acre. ....... 9000 3000 2000 4600 1800 2100 5700 3600 1100<br />

BASES ~CHANGEABLES ....... (m.e. par 100 grs. <strong>de</strong> sol)<br />

Bases totales. ........ 8.0 16.0 16.3 12.2 18.2 20.2 12.4 10.1 21.5<br />

Ca .............. 4.10 8.80 9.50 7.60 10.80 12.00 8.80 6.90 13.61<br />

Mg .............. 1.72 5.50 5.81 2.38 5.73 6.96 3.00 2.50 6.81<br />

Mn .............. 0.06 0.06 0.04 0.06 0.05 0.10 0.03 0.04 0.21<br />

K.. ............. 0.17 0.20 0.23 0.22 0.20 0.24 0.49 0.01 0.7~<br />

Hydrogène ........... 9.0 3.0 2.0 4.6 1.8 2.1 5.7 3.6 1.1<br />

(livres par acre)<br />

Ca .............. 1640 3520 3800 3040 4320 4800 3520 2766 5440<br />

Mg .............. 420 1340 1420 580 1400 1700 720 620 1660<br />

Mn ............. 30 30 20 30 25 40 16 25 160<br />

K ............... 140 160 180 180 160 200 380 6 620<br />

ÉLÉMENTS ASSIMILABLE~:<br />

NO3 ............. 24 12 16 40 16 16 2 8 2<br />

P206<br />

110 150 1.50 125 150 175 200 200 190<br />

KeO.‘::::.:::::-: ; 144 168 192 168 192 168 -100 -100 168

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