Aplikasi dolomit, bahan organik dan pupuk npk pada tanah dicemari Zn: keterkaitan antara sifat kimia tanah dan ketersediaan Zn dengan bobot kering tomat

Abstract

Urban arable land located near industrial area are vulnerable to heavy metal pollution. One of these heavy metals of concerned is zinc (Zn). In situ inactivation is a prospective remediation methods to be applied on heavy metal polluted-soil of arable land. This technique refers to the use of ameliorants and fertilizers to alter the chen~ical forms of heavy metal pollutants in the environment, thereby decreasing their chemical and biological ability to cause harm. This research was aimed at to evaluate: (1) the effects of amelioration and fertilization at 4 (four) soil Zn-enrichment series on soil chemical properties, the concentration of Zn-bioavailable fraction and dry matter yield of the test plant, and (2) the relationships between soil. chemical properties, concentration of soil Zn-bioavailable fraction and dry matter yield of the test plant. The test plant used in this research was low altitude-dryland tomato. The concentration of soil Znbioavailable fraction was extracted with NH40Ac-EDTA pH 4.65.