CONTEÚDO DE NUTRIENTES NA FOLHA DE ALFACE EM SISTEMA CONSORCIADO COM CENOURA SOB DIFERENTES DENSIDADES POPULACIONAIS

Francisco Bezerra Neto; Aurélio Paes Barros Júnior; Edna Maria Mendes Aroucha; Eliane Queiroga de Oliveira; Ebenezer de Oliveira Silva

CONTEÚDO DE NUTRIENTES NA FOLHA DE ALFACE EM SISTEMA CONSORCIADO COM CENOURA SOB DIFERENTES DENSIDADES POPULACIONAIS

2008

Francisco Bezerra Neto | Aurélio Paes Barros Júnior | Edna Maria Mendes Aroucha | Eliane Queiroga de Oliveira | Ebenezer de Oliveira Silva

The experiment was carried out to evaluate the nutrients content in leaves of lettuce intercropped with carrot in strip-intercropping under different planting densities of component crops. The experimental design used was of randomized complete blocks in a 4 x 4 factorial scheme with three replications. The treatments consisted of the combination of four lettuce-planting densities (40%, 60%, 80% and 100% of the recommended sole crop density - RSCD) with four carrot-planting densities (40%, 60%, 80% and 100% of the RSCD). Evaluations for P, Na, Ca, Mg, and K contents were made in the lettuce leaves. There was a significant interaction between lettucedensities and carrot-densities on P content in lettuce leaves. Higher contents of Na and Ca (58.40 and 7.58 mg/plant) were observed in the lettuce-densities of 52% and 47% of the RSCD. The contents of Na and K held constant with increasing carrot-densities. Higher contents of Mg (30 and 15 mg/plant) were observed in the density of 40% of the RSCD both in lettuce and carrot crop.

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