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Fertilização orgânica de batata-doce com doses de esterco bovino e concentraçõe...

To evaluate the fertilization with cattle manure and concentrations of biofertilizer in potato-sweet, White Queen Cultivar, was conducted an experiment in the period from May to September 2006, the Experimental Station, Lagoa Seca - PB, EMEPA. The experimental design was a randomized complete block with four replications in Scheme split plot 6 x 4 X 2 + 1. The main plot consisted of six doses of cattle manure (...

Comportamento produtivo do girassol em função de doses de nitrogênio

O girassol (Helianthus annuus L.) surge como uma cultura alternativa para a região semiárida paraibana, pelo emprego do seu óleo e possibilidade de uso na produção do biodiesel, grande rusticidade, boa adaptação às variações do meio ambiente, podendo ser cultivado em sistema de agricultura familiar. O objetivo do presente estudo foi avaliar o efeito de doses de nitrogênio sobre o desempenho produtivo do girasso...

Produção de sorgo em função de cultivares e biofertilizantes bovino liquido

Evaluation of sweet potato yield in function of organic fertilization levels - ...

The present study evaluated the effect of organic fertilization in the total production of sweet potato. The experiment was performed in the period between July and November 2007, at the Lagoa Seca Experimental Station, Paraíba, Brazil. The experimental design was randomized blocks with five treatments (0, 3, 6, 9 and 12 t ha-1), in four replications. The plot consisted of four 3.6 m long ridges, spaced of 0.80...

Viability of Vigna unguiculata bean seeds treated with vegetable extract and co...

The objective of this work was to study the loss of seed viability of two varieties of Vigna unguiculata, conditioned in paper and metallic packaging, and stored without temperature and relative air humidity control. After seed harvest, in fields prepared for this purpose, the seeds were manually processed, treated, conditioned and stored; every two months, their physiological quality was evaluated using a germ...