Aluminum Determination, Aluminum Studies. Soil and Plant Analysis of Aluminum by Modification of the Aluminon Method

A Comparative Study of the Mineral Nutrients in Grey and Non-Grey Flue-Cured Tobacco

“…in the counties of L'Assomption, Joliette and Bcrthier, plantcd with flLre cureci tobacco (Nicotiunum tubacum L. 'Delhi 76') and known to producc both grev and non-grey tobacco, were choscn for sampling. AII plantings were on acid sandy soil classified as in'rperfectly anci well-drained Poclzols in the soil survcy reports ltrr the above thrcc collnties, respcctively, by La-.joic (1965), Pageau (1961) and Godbout (1957 Yuan and Fiskell (1959) A chlorosis similar to that described fbr N <leficiency (Sprague 1964) …”

Aluminum in Plant Tissue Grown in Soil

“…washing reduced the aluminum from field oats (ruut" 1), and there was fairly close agreement between the measurements after ignition at'jOO and 1000 C. Themeasurementfor unwashed oats was about twice ur1u.g" at 1000 as at 500 c. similarly, aluminum from the oat, soybean and buckwheit tissues contaminated (Greweling, 1960) to 600 c for 4 hours (yuan and Fiskell, 1959) The author was unable to reproduce measurements of aluminum in plant tissues-following digestion in a mixture of nitric, perchloric and sulfuric acids, possibly because aluminum was lost due to overheating after the vigorous reaction with perchloric acid had ceased (Middleton, 1964 …”

Fertilizer Effectiveness, Minor Element Release from Organic-N Fertilizer Materials in Laboratory and Field Studies

“…indicating negligible loss or differential plant uptake u p to that time. Soil samples taken prior to the third fertilization were analyzed in more detail ( Table 1- 11), The water-extractable plant nutrients bvere as high, or higher, from the first band as from the second. This probably resulted from lack of leaching and slow development of the watermelon Soil Analysis.…”