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Joint International Conference on Long-term Experiments ...

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Table 2: Effect of fertilizing and liming 10t/ ha -1 CaCO3 <strong>on</strong> albic luvisoil<br />

Treatment ∆pH P (ppm)<br />

C<strong>on</strong>trol 0.85 20.5<br />

N100 0.24 15.4<br />

P70 0.88 39.0<br />

N100 P70 K60 1.09 85.4<br />

N100 P 70 K60 + FYM 0.90 91.5<br />

FYM 0.90 58.0<br />

2. CLAY ILLUVIAL BROWN SOIL (initial pH = 5.10, P = 18 ppm)<br />

Liming 10t/ ha -1 and fertilizing N100 P 70 K60 + FYM increased soil pH by 1.02 units and<br />

mobile phosphorus raised to 70.1 ppm <strong>on</strong> clay illuvial brown soil.<br />

Table 3: Impact fertilizing and liming 5t/ ha -1 CaCO3 <strong>on</strong> clay illuvial brown soil<br />

Treatment ∆pH P (ppm)<br />

C<strong>on</strong>trol 0.29 24.5<br />

N100 -0.20 19.2<br />

P70 0.29 28.4<br />

N100 P70 K60 0.88 38.4<br />

N100 P 70 K60 + FYM 0.80 45.3<br />

FYM 0.32 33.0<br />

Table 4: Impact fertilizing and liming 10t/ ha -1 CaCO3 <strong>on</strong> clay illuvial brown soil<br />

Treatment ∆pH P (ppm)<br />

C<strong>on</strong>trol 0.65 20.5<br />

N100 -0.10 23.4<br />

P70 0.50 38.2<br />

N100 P70 K60 1.00 60.9<br />

N100 P 70 K60 + FYM 1.02 70.1<br />

FYM 0.70 39.0<br />

3. CLAY-ILLUVIAL CHERNOZEM (initial pH = 5.20, P = 25.4 ppm)<br />

Applying <strong>on</strong>ly mineral fertilizer or together with manure and liming = 10t/ ha -1 pH of<br />

clay illuvial chernozem significantly increased: 1.06, respectively 1 pH units. Lime has<br />

positive effect <strong>on</strong> P c<strong>on</strong>centrati<strong>on</strong>, an increase to 48.9 ppm, respectively 50.4 ppm was<br />

found.<br />

236

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