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1999 - Ledgard et al. - Overseer - A nutrient budgeting model for pastoral farming, wheat, potatoes, apples and kiwifruit

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This paper describes the model OVERSEER™ which can be used to estimate the inputs, outputs and balances (from productivity and total site perspectives) of N, P, K and S for pastoral systems, apples, kiwifruit, wheat and potatoes. 

 

Ledgard, S.F., Williams, P.H., Broom, F.D., Thorrold, B.S., Wheeler D.M. and Willis, V.J., 1999.  OVERSEERTM – A nutrient budgeting model for pastoral farming, wheat, potatoes, apples and kiwifruit. In: Best soil management practices for production. (Eds L.D. Currie and P. Loganathan).  Occasional report No. 12.  Fertilizer and Lime Research Centre, Massey University, Palmerston North. pp 143-152. 

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