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FACTS Northern Ireland - Basis

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and potash for the winter wheat crop following potatoes<br />

SNS index = P index = K index =<br />

Winter wheat following potatoes Kg N/ha = Kg P 2 O 5 /ha = Kg K 2 O/ha =<br />

d) What would be the approximate timings by date or growth stage that you would apply the<br />

fertiliser<br />

Nitrogen<br />

Phosphate<br />

Potash<br />

e) If the farmyard manure was applied before the potato crop, what would be the adjusted<br />

fertiliser recommendation taking into account the available nutrients in the manure<br />

Estima potatoes SNS index = P index = K index =<br />

Fertiliser recommendation for Estima<br />

potatoes<br />

Kg N/ha = Kg P 2 O 5 /ha = Kg K 2 O/ha =<br />

Available nutrients in the FYM (see (f)<br />

below)<br />

Adjusted fertiliser Recommendation<br />

f) State any assumptions that you made in calculating the available nutrients in the farmyard<br />

manure.<br />

Assumptions:-<br />

28

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