Citros root distribution in Coastal Tablelands Yellow Latosol in different planting hole depth

Citros crop in Northeast Brazil is concentrated on states of Bahia and Sergipe, with 106,385 hectares, established in the Coastal Tablelands agricultural ecosystem, where Yellow Latosol prevail, with cohesive horizons that become hard when dry. This problem retains the roots development along the soil profile, decreasing the soil volume explored and consequently the availability of water and nutrients. To solve this problem, breaking the cohesive layer and increasing the volume of roots in the soil, orange tree 'Valência' grafted on lemon tree 'Volkameriano' was planted in several hole depths (0.40; 0.60; 0.80; 1.00 and 1.20 m). The distribution of roots, evaluated in four different diameters, showed differences among the treatments. The best depths were 0.80 m, 1.00 m and 1.20 m.

crop practices; fruit crops; cohesive soils

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