Uso de biofertilizantes à base de esterco bovino para a produção de mudas de tomate
Gambarini, Caetano Pinto Coelho
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Tomato is one of the most consumed vegetables globally and of great importance to the Brazilian economy. The development of healthy and well-nourished seedlings is a fundamental step for the success of production and the use of natural biofertilizers can be a good alternative to reach the initial needs of the culture. The experiment aimed to evaluate the effect of different formulations of organic biofertilizers based on bovine manure on the development of tomato seedlings. For this, 3 biofertilizer formulations were prepared, a basic one without additions (1), and two enriched ones, one with horn and hooves flour, potassium sulfate and reactive natural phosphate (2) and the other with horn flour and hulls, lithotanmium algae, potassium sulfate, magnesium sulfate, reactive rock phosphate and borax pentahydrate (3). Each of the biofertilizers was evaluated at concentrations of 10% and 20%. In addition, a treatment without fertilization was added, irrigated only with water as a control. During the seedling development, 4 evaluations were carried out, at 40, 50, 60 and 70 days after sowing (DAS), computing the total height, stem diameter and number of leaves of the seedlings. At 70 DAS, the seedlings were evaluated for fresh and dry matter. Formulation 2 at a concentration of 20% showed the best results for average plant height, stem diameter, number of leaves and the highest fresh and dry matter at 70 DAS.
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