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Quantidade de sais na água da irrigação

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Quantidade de sais na água da irrigação

1. 1. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.Exercício:A aplicação de 100 mm de água na irrigação contendo 1000 g/m³ (de água) de sais,pode acumular 10 ton por hectare de sais no solo?Resposta: 1000 g = 1.000.000mg 1m³ = 1.000 litros1000.000 mg ------------1.000 litrosx------------------------------1litrox= 1000 mg/l = Pela tabela 1000mg/litro a injúria é baixa.Mas 100 mm pode acumular qto de sais no solo?1mm = 10 m³/ha, ou seja,0,001m x 1 x 1m = 0,001m3/m²0,001m³ ---------------------1m²x-------------------------------10.000m² x = 10m³ de água/ha, entao 100mm = 1.000m³/ha1000 g -------------1m³x----------------------1000m³ x= 1.000.000g= 1000kg/ha= 1ton/haResposta= Acumulará 1 tonelada/ha
2. 2. Generated by Foxit PDF Creator © Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
3. 3. Generated by Foxit PDF Creator © Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
4. 4. Generated by Foxit PDF Creator © Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.
5. 5. Generated by Foxit PDF Creator © Foxit Softwarehttp://www.foxitsoftware.com For evaluation only.