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Potassium leaching in different soils as a function of irrigation depths AGRIAMBI
Mendes,Walter da C.; Alves Júnior,José; Cunha,Paulo C. R. da; Silva,Anderson R. da; Evangelista,Adão W. P.; Casaroli,Derblai.
ABSTRACT Potassium (K) can be easily lost by the leaching process. The objective of this study was to quantify K leaching in clayey and sandy soils under increasing irrigation depths. The experiment was conducted in 2014, in a protected environment, after extraction of undisturbed soil columns, with diameter of 144 mm and height of 300 mm. The columns were arranged in a randomized complete block in a factorial design with three replicates, corresponding to eight treatments: two soil types and four water depths, equivalent to 50, 100, 150 and 200% of the amount of water necessary to bring the soil moisture to field capacity. Potassium chloride, with 58% of K2O, was used as K source. Water replacement in the columns was performed every three days, for a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilization; Soil texture; Nutrient loss; Water management.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001100972
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