Ulery, A.L. Wood-Ash Composition and soil PH Following Intense burning / A.L. Ulery, R.C. Graham, C. Amrhein. -- 1.vyd.

In Soil Science.. -- (1993), s. 358-364. tab.

I. Graham, R.C.
II. Amrhein, C.
III. Soil Science.. -- (1993), s. 358-364. tab.
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