Table 5 Initial indicators of the response of nutrients in forages to the application of excreta in the pot trial.

From: The role of ruminant urine and faeces in the recycling of nutrients by forages

 

Treatment

Forage yield (compared to the controls)

N

P

S

Cu

Zn

Mn

Se

Soil of low organic matter content

Urine

Increase

Synergism

Dilution

Dilution

Synergism

Synergism

Synergism

Dilution

Faeces

Increase

Synergism

Synergism

Synergism

Synergism

Synergism

Dilution

Dilution

Urine + Faeces

Increase

Synergism

Synergism

Dilution

Synergism

Synergism

Dilution

Dilution

Soil of high organic matter content

Urine

Increase

Synergism

Synergism

Synergism

Synergism

Synergism

Dilution

No response (change < 1 μg/kg)

Faeces

Not significantly change

Synergism

Synergism

Synergism

Synergism

Synergism

Antagonism

Antagonism

Urine + Faeces

Increase

Synergism

Synergism

Synergism

Synergism

Synergism

Dilution

No response (change < 1 μg/kg)

  1. The response indicators are from Jarrell and Beverly24.