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Effect of Liming on the Absorption of Calcium, Phosphorus and Nitrogen by Sorghum Plant in Alkaline Soils
Author(s) -
Wahhab A.,
Shah Zahir Hussain
Publication year - 1952
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1952.00021962004400120007x
Subject(s) - sorghum , phosphorus , agriculture , soil water , nitrogen , chemist , mathematics , agricultural economics , agronomy , political science , agricultural science , chemistry , geography , environmental science , biology , archaeology , economics , soil science , organic chemistry
EMING of soils in the humid regions to correct the soil acidity and to develop an optimum reaction is a wellknown practice. Besides raising pH, the addition of lime raises the percentage base saturation and increases the active calcium and magnesium in the soil as well. It is also well known that the addition of calcium suppresses the solubility of iron and aluminum. The reversion of soluble phosphates to unavailable iron and aluminum compounds is much reduced by its addition. However, too much lime may raise the pH above 7, and the formation of insoluble and unavailable complex calcium phosphates may be encouraged. According to Davis and Brewer (3), alkaline conditions render some of the essential elements insoluble. McGeorge and Breazeale (5) have shown that the solubility of phosphorus depends upon an optimum soil reaction. Gedroiz (4) showed that the fertility of a.soil is reduced by the addition of bases Other than calcium which, according to him, rectifies soil infertility. True (8) reported on the importance of the calcium ion in the normal absorption of other elements. Davis (2) found that the soils from which the yields of sorghum were less than those expected from the amounts of available phosphorus present were low in exchangeable calcium, and those which produced highest yields were considerably above the average in percentage calcium saturation. Sewell and Latshah