Influência da subsolagem, calagem, sistema de plantio e porta-enxerto no crescimento da cultivar tangerineira-tangelo page em solo coeso dos Tabuleiros Costeiros da Bahia

Abstract

Citrus plants are very vulnerable to soil conditions and rainfall patterns. The Great Coastal Plains landscape Unit - the main cradle of citrus Bahia - does not fully satisfy the needs of these plants, mainly due to the limitations of their physical and chemical soil and poor rainfall distribution. We try to find an alternative management system which allows, with less cost effective, more sustainable, drought tolerance, earliness of fruit production, longevity and productivity of citrus orchards in geoenvironmental conditions of this environment. The aim of this study was to evaluate the combined effects of soil management (with and without subsoiling, with and without lime + gypsum), and the system of planting (seedling and seeding of the rootstock in situ) on the growth cultivar Page tangelo-tangerine grafted on 'Sunki Tropical' mandarin and 'Rangpur' lime, in cohesive soils of coastal plains. The experiments were conducted in major citrus regions of the State of Bahia - Recôncavo South and North Coast - the municipalities of Conceição do Almeida, Rio Real, respectively. It was found that in both tillage systems, no effect of tillage or the correction of acidity on plant growth. The observed differences in plant height, the diameter of the crown and stem and root density was due exclusively to the tillage system and was significantly higher in plants from seeding rootstock in situ, regardless of the rootstock.