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Crop yield over two rotations on a calcareous Chernozem with irrigation and different fertilizer systems

Zvereva, E.A.; Bortmikova, L.A.

Agrokhimiya 7: 46-61

1996


Accession: 002791127

Studies were made on nutrient status (especially P) over two 11-field rotations (1972-94) involving maize, winter wheat, lucerne, lucerne, maize and soyabeans, on a calcic Chernozem in SE Russia. Fertilizer systems were based on creating the optimum P supply for each crop, taking into account the residual effect of P fertilizers.

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