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Relationship between P in plant<br />
and P in dung<br />
P-content dung (%)<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
0 0.05 0.1 0.15 0.2 0.25 0.3<br />
P-content plant (%)