CP Phase III Final Report 1991_Part 2.pdf - Lee Daniels - Soil and ...

. Table 26. Sufficiency/toxicity levels of N, P, K, Ca, Mg, Fe, and Mnin upper 1/2 of fescue plant growing on mine soils of the surfaceamendment experiment in July 1982 and September 1988 .Treatment N p K Ca Mg Fe Mn--------- - -----g/kg-------------- -- -----mg/kg-------------July 1982----------Control 21.6a 3.6a 37.5ab 4 .Sa 3.8a 8l.Oa 405.3a(2:1 SS:SiS)Topsoil 21.3a 3.5a 39.5a 4.la 3.6a 97.0a 332. 8ab(30 em)Sawdust 28.2a 2.9a 32.6bc 4.3a 3.4a 108.5a 385.5a(112 Mgjha)Sludge 22 . la 3.4b 32. lbc 7 . 8a S.Oa 88.5a 269.8bc(22 Mgjha)Sludge 24. 7a 4.3b 33.5bc 7.1a S.la 92 . 8a 182.3cd(56 Mgjha)Sludge 25.5a 4.9b 33.8bc 6.7a 4. 7a 90.0a 136. 3d(112 Mgjha)Sludge 29.5a 4 . 5b 29.2c 8.2a S.Oa 97.5a 192.3cd(224 Mgjha)-------September 1988------Control 18.5a 4.4a 28.7a 3.3a 4.2a 76.8a 44. 7ab(2:1 SS:SiS)Topsoil 19.4ab 4.3a 31. 7ab 3 .4a 4.0ab 74.5a 51.6b(30 em)Sawdust 18.5a 4 . 2a 29.9ab 3.2a 4.0ab 76.7a 74.9c(112 Mgjha)Sludge 20.4bc S.lb 32.4b 3.7a 4 . 2a 73 . 8a 79.2c(22 Mgjha)Sludge 2l.lcd 5.7bc 29.4ab 3.6a 3.6b 89.4a 45. 2ab(56 Mgjha)Sludge 22.4d 6.1c 32.5b 3.4a 3.6b 73.7a 39.2ab(112 Mgjha)Sludge 22.2d 5.3b 30. 8ab 3.5a 3.lc 85.7a 30 . 0a(224 Mgjha)Means within columns in each year followed by the same letter arenot significantly different (P = 0.05) .59