Abstract

CENTURION, Maria Aparecida Pessôa da Cruz et al. Effect of inter row management on chemical properties of the soil, nutritional status and development of rubber tree. Rev. Árvore [online]. 2005, vol.29, n.2, pp. 185-193. ISSN 0100-6762.  http://dx.doi.org/10.1590/S0100-67622005000200002.

the objective of the present study was to assess the effect of rubber tree inter row management on chemical properties of the soil, nutrient concentrations and development of rubber trees. Rubber trees (PB 235 and 701) were planted on red latossol, in 1992 - Jaboticabal-SP. The treatments consisted of managing rows with harrow, mowing and tropical kudzu (Pueraria phaseoloides) cover crop. After eight years, some chemical properties of the soil were analyzed (pH, O.M., H+Al, Ca⁺², Mg⁺², K⁺and P) between rows, the tree nutrient concentrations as well as diameter at breast height were assessed. The different management types between rows affected all the chemical attributes of soil only in the superficial layer (0-20 cm depth) analyzed. The management between rows with mowing was found to be important for the soil-tree system. The influence of the management between rows on tree nutrition depends on the clone used for the production system.

Keywords : Hevea brasiliensis; inter-crop system; mowing; harrow; nutrition.