Hi James,
              I am aware of prep 500 releasing phosphorus from the soil, even to the point of depleteing the reserves. I had an understanding that 501 related more to magnesium and therefore would need to be used with caution in some parts of Australia. A dairy farmer in New Zealand applied 501 without the other preps. in the spring. He reported that his cows went like race horses and of couse race horses are not renowned for their milk production. He got rather thin and race horse like too. It took about three months for the effect to wear off. This was in the lush Waikato. Therefore I would be reluctant to suggest anyone apply 501 without all the others first. I regard 501 as the icing on the cake. It is good to have the cake ready first!!
Regards,
Peter.  
----- Original Message -----
Sent: Monday, August 12, 2002 11:48 PM
Subject: Smallest Entities in Agriculture

 

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