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Yield and Mineral Composition of Alfalfa and Sunflowers as Influenced by the Degree of Reaction of Calcium Carbonate with Two Acid Soils
Author(s) -
Baker Aaron,
Brady N. C.
Publication year - 1954
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1954.03615995001800040013x
Subject(s) - loam , soil water , chemistry , agronomy , calcium , yield (engineering) , calcium carbonate , composition (language) , manganese , silt , nutrient , sowing , environmental science , geology , biology , soil science , paleontology , linguistics , materials science , philosophy , organic chemistry , metallurgy
The comparative effects of reacted and unreacted CaCO 3 in two acid soils on the growth and nutrient uptake of alfalfa and sunflowers were determined. The soils, both Mardin silt loams, had pH values of 4.6 and 5.5 respectively, and CaCO 3 was applied at the rate of 1.35 tons per 2 × 10 6 lbs. Reaction of CaCO 3 with the more acid soil increased the yields and calcium contents of both alfalfa and sunflowers. On the less acid soil, reaction of the CaCO 3 with the soil was not effective in increasing the yield of either plant, although the calcium content of both plants was higher where CaCO 3 had been allowed to react with the soil before planting. Plant analyses showed a better relationship between manganese content and yield than that of any other element investigated.