A concentração e a quantidade de micronutrientes e de alumínio no cafeeiro, Coffea arabica, L., variedade mundo novo (B.Rodr.) Choussy, aos dez anos de idade

Abstract

This paper reports the content (table 1) and amount of the micronutrients boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn), and of the non-essential element aluminum (Al) in the trunk, branches, leaves and fruits of the ten years coffee tree, Coffea arabica, L., variety mundo novo (B.Rodr.) Choussy, growing in a latosol of Piracicaba, State of Sao Paulo. Brasil. It is very interesting to observe the high content of chlorine in the different parts of the coffee tree. The uptake of micronutrients calculated for the growing of the trunk, branches and leaves of 1000 coffee trees ten years old was: 555 g of boron (B), 37157 g of chlorine (Cl), 214 g of copper (Cu), 3765 g of iron (Fe), 776 g of manganese (Mn), 1,6 g of molybdenum (Mo) and 144 g of zinc (Zn). On the other hand the uptake of micronutrients calculated for the production of 2000 kilograms of fruits was: 24 g of boron (B); 3380 g of chlorine (Cl); 21 g of copper (Cu); 55 g of iron (Fe); 19 g of manganese (Mn); 0,14 g of molybdenum (Mo) and 11 g of zinc (Zn).