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PQ43 Étude des sols du comté de Nicolet - IRDA

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104 ETUDE DE~ soLs DU COMTÉ DE NICOLET<br />

RÉSULTATS ANALYTIQUES<br />

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

<strong>de</strong> I’echantillon: Becquets (34)<br />

-<br />

(129) (19)<br />

Terre franche ar-<br />

Terre franche<br />

gileuse lour<strong>de</strong><br />

ar<strong>de</strong><br />

Terre<br />

gileuse<br />

franche ar<strong>de</strong><br />

Levrard,<br />

rYPE ..................... <strong>de</strong>use <strong>de</strong> Levrard<br />

Levrard phase organique<br />

Yo DE LABORATOIRE ....... 19230 19231 19232 19768 19769 19770 19215 19216 1921;<br />

HORIZON .................. AC G C Ac G C Ac G C<br />

PROFONDEUREN ~0ucBs ..... O-7 7-17 17+ O-S S-18 lS+ O-6 6-15 15+<br />

ANALYSE PHYSIQUE ......... y0 y0 y0 y0 y0 y0 y0 y0 7%<br />

Detritus. ............ 0.0 0.0 0.0 0.5 0.0 0.0 0.0 6.0 0.0<br />

Sable ................ 23.2 13.2 11.2 30.8 14.8 8.4 53.2 41.2 33.2<br />

Limon.. ............. 54.0 62.8 64.8 43.2 29.2 30.8 32.8 18.8 14.8<br />

Argile.. ............. 22.0 24.0 24.0 26.0 56.0 60.8 14.0 40.0 52.0<br />

Humidite. ........... 1.1 2.3 1.0 2.2 1.2 1.2 2.7 1.2 1.5<br />

Perte au feu. ......... 4.9 1.9 1.4 9.0 2.1 2.1 14.7 2.0 2.5<br />

C organique. ......... 2.18 0.32 0.08 4.27 0.27 0.16 8.15 0.40 0.3<br />

Matiere organique ..... 3.75 0.55 0.13 7.36 0.46 0.27 14.07 0.68 0.6<br />

ANALYSE CHIMIQUE:<br />

Si02. ................ 71.1 68.4 68.2 65.7 65.9 64.8 59.6 67.2 65.3<br />

iXz03 ................ 17.1 22.3 21.9 18.4 23.1 23.5 17.7 21.9 22.9<br />

Ca0 ................. 2.13 2.82 2.97 1.53 2.09 2.19 2.46 2.76 3.0<br />

Mg0 ................ 0.72 1.13 1.22 1.20 1.95 2.15 1.13 1.82 2.2<br />

K20 ................. 2.41 2.55 2.60 2.09 3.02 3.14 2.23 2.62 2.t<br />

Mn304 ............... 0.05 0.13 0.11 0.06 0.09 0.10 0.07 0.07 0.C<br />

P206.. ............... 0.10 0.14 0.12 0.07 0.04 0.04 0.18 0.14 0.1<br />

N ................... 0.18 0.03 0.02 0.35 0.07 0.06 0.33 0.04 0.C<br />

R~A~TION:<br />

pH .................. 6.0 7.1 7.2 6.1 7.1 7.3 6.0 7.1 7.’<br />

Besoin en CaC03<br />

livres par acre. ....... 3000 1300 900 4600 1200 1100 6900 900 500<br />

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

Bases totales. ........ 9.8 14.2 12.0 16.6 20.0 24.3 13.3 13.5 23.3<br />

Ca .............. 7.40 10.50 8.80 10.40 11.00 11.70 9.60 8.60 14.3<br />

Mg .............. 2.20 3.38 2.89 5.60 8.00 10.30 2.30 3.43 7.5<br />

Mn ............. 0.07 0.07 0.07 0.13 0.07 0.16 0.13 0.04 0.0<br />

K. .............. 0.09 0.80 0.13 0.42 0.61 1.38 0.18 0.22 0.3<br />

Hydrogène. .......... 3.0 1.3 .09 4.6 1.2 1.1 6.9 0.9 0.5<br />

(livres par acre)<br />

Ca .............. 2560 4200 3520 4160 4400 4680 3840 3440 5720<br />

Mg .............. 540 820 700 1360 1940 2520 560 840 1840<br />

Mn ............. 20 40 40 70 40 90 70 20 30<br />

K ............... 70 70 110 320 480 880 140 170 270<br />

ÉLÉMENTS ASSIMILABLES:<br />

NO3 ............. 40 40 40 4 12 8 32 16 12<br />

PPO6 ............ 125 150 12.5 100 160 175 180 125 125<br />

K20 ............. -100 -100 144 135 250 600 144 168 264

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