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THALES VINÍCIUS DE ARAÚJO VIANA; JOÃO GUILHERME ARAÚJO LIMA; GEOCLEBER GOMES DE SOUSA; LUIS GONZAGA PINHEIRO NETO; BENITO MOREIRA DE AZEVEDO (2014)
Publisher: Universidade Federal Rural do Semi-Árido
Journal: Revista Caatinga
Languages: English
Types: Article
Subjects: Agriculture, S, Biology (General), QH301-705.5

Classified by OpenAIRE into

mesheuropmc: food and beverages
The bovine biofertilizer applied through irrigation water in the soil (bio fertigation), can be a viable organic source to maintain fertility levels in agricultural production systems. So, this work was aimed at evaluating the effects of different concentrations of bovine biofertilizer applied by fertigation on corn growth, gas exchange and yield. The experiment was conducted under full sun exposure, in Fortaleza, Ceara, in 100 liter (100 L) vessels. The experimental design was that of randomized blocks with five treatments and five repetitions. Treatments consisted of 0.5 L doses (per plant) of a fertigating solution (biofertilizer + water) weekly applied, with a different biofertilizer concentration to each treatment, as follows: C0 = 0% biofertilizer (control), C1 = 12.5%, C2 = 25% biofertilizer, C3=50% biofertilizer, C4 = 100% biofertilizer. We analyzed the effects on the following variables: plant height, stem diameter, leaf number, shoot dry weight, photosynthesis, stomatal conductance, transpiration and yield. The biofertilizer was the most efficient considering the initial growth and gas exchange. Also, the bovine biofertilizer treatments (as a whole) favored the increase in the weight of 1000 seeds and grain yield.
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