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Complex of agro-meliorative practices for improvement of steppe soil in Kvemo-Kartli

By: Contributor(s): Material type: TextTextPublication details: Tbilisi (Georgia) CIMMYT : 2004Description: p. 324Subject(s): DDC classification:
  • 633.1147 BED
Summary: The area of solonetzic soils includes 6 admi- nistrative districts in East Georgia. They are charac- terized by unfavorable production properties. The objective of the long-term research was assessment of condition of the solonetzic soils in sub-tropical steppes of K vemo- Kartli region and its compre- hensive improvement and introduction to production through land reclamation measures. The study was conducted under the irrigated conditions. A simulta- neous testing of physical (multi-level soil tillage with plow PTN-40 at the depth of 40cm), chemical (gypsuming/plastering combined with high rate application of organic and mineral fertilizers divided into two applications) and biological (planting of annual and perennial grasses -alfalfa, alfal- fa+ryegrass) melioration methods was conducted. An effect of melioration management complex on winter wheat grain yield was determined. The melioration measures by plastering were carried out twice. In two years after the first melioration by plastering winter wheat yield of 3.9 t/ha was produced. In the following years (third and fourth) yield gradually decreased, which was explained mainly by reduced effect of meliorant (gypsum). The second treatment with the set of melioration management practices resulted in winter wheat yield of 4.2 t/ha. To improve winter wheat yield on grey- brown solonetzic soils of K vemo-kartli region, repetitive application of agro-meliorative practices is highly recommended.
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 633.1147 BED (Browse shelf(Opens below)) 1 Available 3F630072
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Abstract only

The area of solonetzic soils includes 6 admi- nistrative districts in East Georgia. They are charac- terized by unfavorable production properties. The objective of the long-term research was assessment of condition of the solonetzic soils in sub-tropical steppes of K vemo- Kartli region and its compre- hensive improvement and introduction to production through land reclamation measures. The study was conducted under the irrigated conditions. A simulta- neous testing of physical (multi-level soil tillage with plow PTN-40 at the depth of 40cm), chemical (gypsuming/plastering combined with high rate application of organic and mineral fertilizers divided into two applications) and biological (planting of annual and perennial grasses -alfalfa, alfal- fa+ryegrass) melioration methods was conducted. An effect of melioration management complex on winter wheat grain yield was determined. The melioration measures by plastering were carried out twice. In two years after the first melioration by plastering winter wheat yield of 3.9 t/ha was produced. In the following years (third and fourth) yield gradually decreased, which was explained mainly by reduced effect of meliorant (gypsum). The second treatment with the set of melioration management practices resulted in winter wheat yield of 4.2 t/ha. To improve winter wheat yield on grey- brown solonetzic soils of K vemo-kartli region, repetitive application of agro-meliorative practices is highly recommended.

English

0409|AGRIS 0401|AL-Wheat Program

Juan Carlos Mendieta

CIMMYT Publications Collection


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