Pridelava krompirja z uporabo različnih količin kalijevih gnojil in pršenja z izvlečkov glistin deževnikov (vermi-wash

Mohamed A. ABDRABBO, Z. Y. MAHARIK, A. A. FARAG, M. ABUL-SOUD, M. A. FAHIM

Povzetek


V raziskavi je bila preučevana uporaba vermivoša kot organskega vira in kalijevih gnojil. Poljski poskus je bil izveden v dveh zaporednih poletnih sezonaha, 2017 in 2018 na poskusni postaji v Dokki, Kmetijskega raziskovalnega centra v Gizi, Egypt. Namen raziskave je bil ovrednotiti učinke uporabe različnih odmerkov kalijevih gnojil, 140, 280 in 420 kg K2O ha−1 v kombinaciji z 1-,2-,3-,4- in 6-kratnim pršenjem z vermivošem in pršenjem z vodo kot kontrolo na vegetativno rast in pridelek krompirja (Solanum tuberosum ‘Spunta’). Uporaba odmerkov kalijevih gnojil in pršenje z vermivošem sta značilno vplivala na vegetativno rast kropmpirja, na celokupni in tržni pridelek gomoljev kot tudi na vsebnost hranil (N, P in K %) v listih krompirja. Povečanje odmerka kalija iz 140 na 280 kg K2O ha−1 je povečalo celokupni pridelek. Nadalnje povečanje odmerkov kalija na 420 kg K2O ha−1 je zmanjšalo vegetativno rast in produktivnost v primerjavi z odmerkom 280 kg K2O ha−1. Glede pršenja z vermivošem so rezultati pokazali, da je dvakratno pršenje pospešilo vegetativno rast in produktivnost, več kot dvakratna uporaba pa je oba parametra zmanjšala.

Ključne besede


krompir; učinkovitost izrabe vode; evapotranspiracija; gomolji in vegetativna rast

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2019.113.2.11

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