Tạp chí
Phạm Quang Hà (trang 29-35)
Từ khoá: độ chua, đất, đất phù sa
Summary
Acidity problems in fluvisols of Vietnam in period 2001-2003
Study in 2001-2003 with 214 analysed samples. Result: average of pHH2O in fluvisol is 5.39-5.55 and pHKCl is 4.51-4.67. It confirms that fluvisols of Vietnam is not neutral, but is probably more or less acidic. Only 15% fluvisol shown a neutral pH and more than 50% fluvisols are acidic with pHKCl below 4.6. Attention should be paid in managing this soil for preventing the acidification process that is probably happening for fluvisols.
