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multipurpose tree species research for small farms: strategies ... - part

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Table 1. Soil properties from the experimental sites.<br />

Exchangeable Cations (meq/100 g)<br />

SITE Depth pH Ca Mg K % Al Sat<br />

Sei Putih 0-10 cm 5.3 !.76 0.50 0.41 8<br />

30-40 cm 5.1 0.72 0.17 0.12 51<br />

Sembawa 0-10 cm 4.9 0.42 0.32 0.11 85<br />

30-40 cm 5.0 0.12 0.04 0.03 97<br />

Utchee Creek 0-10 cm 5.3 1.44 0.60 0.23 11<br />

20-30 cm 5.1 0.53 0.19 0.09 14<br />

Silkwood 0-10 cm 5.3 0.34 0.23 0.15 77<br />

20-30 cm 5.0 0.03 0.05 0.03 91<br />

Table 2. Rates and type of fertilizer applied to field exptcrinnents.<br />

Fertilizer Product kg element/ha Lime t/ha<br />

P Diammonium phos hate i 33<br />

Monoammonium p osphate- 33<br />

Ca (nutr) Gypsum 40<br />

Ca (lime) Calcium hydroxide Sembawa 2.0<br />

Silkwood 2.0<br />

Sei Putih 0.4<br />

Utchee Creek 0.4<br />

Trace Elements (TE)<br />

Cu 3.0<br />

Zn 3.0<br />

Mo 0.2<br />

B 1.5<br />

Mg 20.0<br />

Basal treatment K;S<br />

lndonesia "Australia 3 split dressing<br />

Fertilizer treatment codes referred to under Nutritional Trials were:<br />

No fertilizer applied (Fl)<br />

P + Ca (nutr) F3<br />

P + C.- (nutr) + TE F4)<br />

P -i Ca (nutr) + Ca (lime) (F5)<br />

P + Ca (nutr) + Ca (lime) + TE (F6)<br />

196<br />

-0/18; 16/8 3

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