SELECT Productor.idInscrip, Campos.Insecticida1, Campos.Insecticida2, COUNT (Productor.idInscrip) AS Expr2, SUM([Algodon]+[Girasol]+[Maiz]+[Soja]+[Otros]) AS Expr1
FROM Productor, Lotes, Campos, Campaña WHERE Productor.IdInscrp = Lotes.IdInscrip AND Lotes.idLote = Campos.IdLote AND Campaña.id = Lotes.Campaña
GROUP BY Productor.idInscrip, Campos.Insecticida1, Campos.Insecticida2