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Banded fertilizer brings advantages. Results and experiences from long-term studies on the placement of mineral N fertilizers for potatoes

, : Banded fertilizer brings advantages. Results and experiences from long-term studies on the placement of mineral N fertilizers for potatoes. Kartoffelbau 44(1): 14-17

Field experiments at 6 E. German sites in 1984-86 and 1988-91 investigated the effects of different soil preparation and N application methods on potato tuber yields. In 1984-86, calcium ammonium nitrate and ammonium sulfate were broadcast or banded, at 30, 60 and 120 kg N/ha. Broadcast fertilizer was ploughed in, worked in with a cultivator, applied to pre-formed ridges in autumn (RA) or spring (RS), or applied to flat ridges between planting and earthing up.

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