Influência da adubação fosfatada - potássica na ocorrência de pragas na cultura da soja
Alternative title
Influence of phosphate-potassic fertilization on the occurrence of soybean insect pestsDate
2002-12-01Type
Article
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This study was developed to determine the effect of phosphate-potassic fertilization on the occurrence of soybean insect pests. Plots were arranged in a randomized complete block design in a 4 by 4 factorial experiment (four phosphate levels and four potassic levels) with three replications. The levels of phosphorus and potassic tested were, respectively: 0, 80, 120 and 160 kg/ ha of P2O5 and 0, 40, 60 and 80 kg/ha of K2O. The insect population survey was carried out on a weekly-basis starting from the V2 stage, using ground-cloth. The results showed a tendency of population growth of Piezodorus guildinii (Westwood) for the highest levels of nutrients. Some leaf nutrients were correlated with Diabrotica speciosa (Germar).
How to cite this document
Cardoso, Alexandre M.; Cividanes, Francisco J.; Natale, William. Influência da adubação fosfatada - potássica na ocorrência de pragas na cultura da soja. Neotropical Entomology, v. 31, n. 3, p. 441-444, 2002. Available at: <http://hdl.handle.net/11449/224540>.
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Portuguese
