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METHODS FOR DIFFERENTIAL AND PROGNOSIS OF FERTILIZATION IN POTATO INTENSIVE CROP

OLTEAN M.I., IANOSI Maria, CHIRU S.C., OLTEANU Gh., DONESCU V.
National R&D Institute for Potato and Sugar Beet, Brasov, Romania
icpc@potato.ro

Potato is one of the most intensive crops. The performances of potato crop are direct correlated with the technological inputs. From these, fertilization is represented a special place with impact in:

  • yield quantity and quality ;
  • technological value of potato as row material for processing;
  • diseases and enemies resistance capacity;

The requirements of fertilizers per tone obtained potato plus the haulms quantity (0,3 to/ha) is for nitrogen 4.5 kg, phosphorus 1.8 kg, potash 7.8 kg, mangan 1.2 kg and 2.4 kg for calcium and microelements.

The methods for differential and doses calculation for fertilizers are based on agrochemical factors of the soil, physiological stage of the crops and technological factors.

The poster is presenting results regarding the influence of fertilization on potato crop.

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