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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 litros
1000.000 mg ------------1.000 litros
x------------------------------1litro
x= 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/m²
0,001m³ ---------------------1m²
x-------------------------------10.000m² x = 10m³ de água/ha, entao 100mm = 1.000m³/ha

1000 g -------------1m³
x----------------------1000m³ x= 1.000.000g= 1000kg/ha= 1ton/ha
Resposta= Acumulará 1 tonelada/ha
Generated by Foxit PDF Creator © Foxit Software
http://www.foxitsoftware.com For evaluation only.
Generated by Foxit PDF Creator © Foxit Software
http://www.foxitsoftware.com For evaluation only.
Generated by Foxit PDF Creator © Foxit Software
http://www.foxitsoftware.com For evaluation only.
Generated by Foxit PDF Creator © Foxit Software
http://www.foxitsoftware.com For evaluation only.

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Quantidade de sais na água da irrigação

  • 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 litros 1000.000 mg ------------1.000 litros x------------------------------1litro x= 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/m² 0,001m³ ---------------------1m² x-------------------------------10.000m² x = 10m³ de água/ha, entao 100mm = 1.000m³/ha 1000 g -------------1m³ x----------------------1000m³ x= 1.000.000g= 1000kg/ha= 1ton/ha Resposta= Acumulará 1 tonelada/ha
  • 2. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  • 3. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  • 4. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  • 5. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.