Nutrient and heavy metal concentration and distribution in corn, soybean and wheat as affected by different tillage systems in the Argentine Pampas
Lavado, R.S.; Porcelli, C.A.; Alvarez, R.
Soil and Tillage Research 62(1/2): 55-60
ISSN/ISBN: 0167-1987 DOI: 10.1016/s0167-1987(01)00216-1
Different tillage techniques affect the root absorption of macronutrients and trace elements. Our objective was to study the effect of conventional and zero tillage on the concentration of macro- and micronutrients and specially heavy metals and their distribution in soyabean, wheat and maize plants in an area located far from contamination sources. The study, initiated in 1979, was conducted at the Agricultural Experimental Station located at Pergamino (Buenos Aires province, Argentina).