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 (430KB)
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20,743,000 Yen (FY1998: 6,803,000 Yen)
The experiment was conducted using one of the abandoned fields of Shamenov khorkhoz irrigation lands located near the lower reaches of the Syr Darya for finding some crops tolerant to saline soils and establishing a new crop rotation system or sophisticated cultivation methods. The idea is for maintaining irrigated agriculture or avoiding secondary soil salinazation and waterlogging, and reducing environment pollution due to excess use of irrigation waters. During three years of this project, in the first year 1996 collecting the informations concerning irrigated agriculture or salinized soil problems was performed by visiting some locations and institutes of Kirghizia, Uzbekistan and also Kazakstan. In the second year 1997, the whole duration was consumed for constructing the experimental field in the salt-accumulated and abandoned fields of Shamenov khorkhoz Meshet block. Other construction labors were leveling the field, constructing open drainage and boundary ditches between the treatments, reconstructing the water-gates and irrigation canals, fencing the field for guarding crops from cattle's attack, etc.
In the third year 1998, crop production in the heavily salt-accumulated field after leaching succeeded at first time in Kazakstan and lots of informations on seasonal changes of the levels and quality of groundwater in and around the fields were collected. Interrelations between the salinity of groundwater or soils and growth levels of the crops planted were analyzed.
Kazakstan, Saline Soils, Salt-tolerant Crops