SOME PHYSICAL AND CHEMICAL PROPERTIES OF THE RICE GROWN SOILS OF CENTRAL ANATOLIA REGION

The aim of this study was to determine the fertility status of the rice grown soils of Central Anatolia region. For this purpose, 40 soil samples were taken and analyzed for some physical and chemical properties. In general, the experimental soils were clay and loamy clay in texture, medium alkaline in reaction (pH) and moderately calcareous. 60, 25, 30 and 95 % of the soils studied were found to be deficient in total-N, plant available phosphorus, zinc and manganese, respectively. On the other hand, 60 % of the soil samples were found to be excess in boron. The salinity levels of the soil samples were seemed to be under salinity limits. 90 % of soils were determined > 25 me/100 g soils in CEC (cation exchange capacity). It was also concluded that 45 % of the soils have low organic matter content.

ORTA ANADOLU’DA ÇELTÝK TARIMI YAPILAN TOPRAKLARIN BAZI FÝZÝKSEL VE KÝMYASAL ÖZELLÝKLERÝ

Orta Anadolu’da çeltik tarýmý yapýlan topraklarýn verimlilik durumunu deðerlendirmek amacýyla 40 adet toprak örneði alýnarak topraklarýn bazý fiziksel ve kimyasal özellikleri belirlenmiþtir. Genel olarak, kil ve siltli kil tekstüre sahip, orta alkali reaksiyonlu ve orta kireçli olan topraklarýn % 60’ý azot, % 25’i fosfor, % 30’u çinko, % 95’i mangan bakýmýndan yetersiz, % 60’ýnýn ise bor bakýmýndan zengin olduðu belirlenmiþtir. Araþtýrma topraklarýnda tuzluluk açýsýndan büyük bir sorun olmadýðý, topraklarýn % 90’ýnda KDK nýn >25 me/100 g toprak olduðu ve topraklarýn % 45’inde organik maddenin yetersiz olduðu belirlenmiþtir.