jantenbroeke

Some time ago I created a calculator within an excell sheet to calculate how to mix standard fertilizer to achieve a desired NPK mix.

By mixing its possible to save up to 35% in costs.

If one is interested, please download the attached excel sheet. (macros enabled) and have a try.

Out of the previous articles, one can conclude that buying fertilizer now for the start of next rain season brings considerable costs advantages.

My problem is that we had already problems before with mouses.

Even though they don't eat fertilizer, they munch the bags what gives a big mess.

Does anyone know a solution for this problem?

Thanks in advance

NPKMixCalc.xls

I Bought at 17 September in Sawang (Sakon Nakhon district) the next fertilizers in 50kg bags.

• 46-0-0 for 620 baht
  
• 16-20-0 for 680 baht
  
• 0-0-60 for 1200 baht
  

Mixing in a ratio 1 :1 :0.33 gives an NPK of 26.6 : 8.6 : 8.5

Kind regards,

jan