CAOAC

AcronymDefinition
CAOACCanadian Association Of Aquarium Clubs
CAOACCounty Administrative Officers Association of California (Sacramento, CA)
CAOACCivil Affairs Officer Advanced Course
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References in periodicals archive ?
- Organic matter: Humid Digestion Walkley-Black; [Ca.sup.2+] and [Mg.sup.2+] extracted with KCl 1 M pH 7.0; [Na.sup.+] and [K.sup.+] extracted using N[H.sub.4]OAc 1 M pH 7.0; [Al.sup.3+] and ([H.sup.+]+ [Al.sup.3+]) extracted using 0.5 M CaOAc pH 7.0; ECse - Electrical conductivity soil saturation extract; LC--Loamy Clay; AW - Available water; Ds- Soil Density; Dp- Density of particles.
Bases (%) 43 54 47 41 39 Cu (mg [dm.sup.-3]) (7) 1,2 1,2 1,1 1,1 1,1 Zn (mg [dm.sup.-3]) (7) 5,7 4,1 4,6 2,5 1,6 Fe (mg [dm.sup.-3]) (7) 74 72 48 45 49 Mn (mg [dm.sup.-3]) (8) 23 22 18 22 21 S (mg [L.sup.-1]) (9) 24 8,9 23 9,8 13 B (mg [dm.sup.-3]) (10) 0,9 1,4 1,1 0,9 0,9 (1) metodo do densimetro; (2) relacao 1:1; (3) oxidacao em solucao sulfocromica a quente e determinacao por espectofotometria com [Cr.sup.+3]; (4) P e K, extrator HCl 0,05N + [H.sub.2]S[O.sub.4] 0,025N; (5) Ca, Mg e Al, extrator KCl 1N; (6) H + Al, extrator CaOAc 1N a pH = 7; (7) Cu, Zn e Fe, extrator HCl 0,1N; (8) Mn, extrator KCl 1M; (9) S, extrator Ca ([H.sub.2]P[O.sub.4]).