Pošlji prispevek (e-pošta) Učinkovitost in ekonomičnost integriranega upravljanja s pleveli pri pridelavi arašidov (Arachis hypogea L.)
Povzetek
Upravljanje s pleveli je pomemben in drag korak pri pridelavi arašidov. V ta namen je bil izveden poljski poskus v zgodnji in pozni deževni dobi 2017 za ovrednotenje učinkovitosti in donosnosti upravljanja s pleveli v pridelavi aršidov z okopavanjem, herbicidi in njuno kombinacijo. Uporabi butaklora in propabena pri 2.0 kg (aktivne snovi) ha-1 je v obeh primerih sledilo še dodatno okopavanje 6 tednov po setvi, kar je značilno zmanjšalo pokrovnost in maso plevelov s povečanjem pridelka strokov arašidov, ki je bil podoben tistemu, kjer je bilo samo okopavanje, a boljši kot pri uporabi samo katerega od herbicidov. Največji pridelek strokov arašidov (1485,7 kg ha-1) in donos ($1639,2) je bil v zgodnji sezoni dosežen s tremi okopavanji. V pozni sezoni je bil največji pridelek strokov arašidov (1146,3 kg ha-1) dosežen z uporabo propabena z dodatnim okopavanjem in največji donos ($1264,8) pri uporabi butaklora z dodatnim okopavanjem. Čeprav so dala trikratna ročna okopavanja največji donos v zgodnji sezoni sta bila neto dobiček in razmerje stroškov in dohodkov pri okopavanju manjša kot pri uporabi herbicidov z dodatnim okopavanjem. Raziskava je pokazala, da bi pri integriranem uravnavanju plevelov z butaklorom ali s propabenom dodatno okopavanje izboljšalo nadzor nad pleveli, povečalo pridelavo in donosnost pridelave arašidov. Večkratno zatiranje plevelov samo z okopavanjem ni zagotovilo večjega dobička ampak je povečalo stroške pridelave.
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DOI: http://dx.doi.org/10.14720/aas.2020.116.1.1602
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