THE SIMULATION MODEL OF SALT AND BORON TRANSPORT IN SURFACE SOIL

Kaba ve ince bünyeli iki farklý toprakta laboratuvar denemesi kurularak bor ve tuz hareketi üzerine bilgisayar similasyon yýkama modeli uygulanmýþtýr. Denemede 5 cm göllendirme ve aralýklý sulama yöntemleriyle yýkama yapýlmýþtýr. Ýki farklý toprakta yýkama esnasýnda belirlenen tuz ve bor konsantrasyonlarý bilgisayar program madeli ile tahmin edilen sonuçlarla kýyaslanmýþtýr. Elde edilen sonuçlara göre, yýkama iþlemi süresince aralýklý sulama yöntemi uygulanmýþ topraklarda elde edilen EC ve bor deðerleri bilgisayar program modeli ile tahmin edilen sonuçlarla uyum göstermiþtir. Tuz yýkanmasýna oranla bor yýkanmasý için 4-5 kat daha fazla su gerekmektedir.

TOPRAKLARDA TUZ VE BOR HAREKETÝNÝN SÝMÝLASYON MODELLEMESÝ

A computer simulation leaching model was applied to a laboratory study of salt and boron leaching from fine and coarse texture soil. Leaching was performed by ponding of water with 5 cm head and by intermittent water application. Computer estimations on the transport of salt and boron in the both types of soil were compared with the measured changes in salt and boron concentrations during the leaching processes. The results indicated that the calculated values in EC and boron during the leaching process showed conformity particularly during the intermittent application. The boron reclamation needed four to five times more water than the salt reclamation.