Browsing VOL 30 *No.2 by Author "Georgieva, Natalia"
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Systems of organic farming in spring vetch I: Biological response of sucking insect pests
Nikolova, Ivelina; Georgieva, NataliaFour systems of organic farming and a conventional farming system were studied over the period 2012-2014. The organic system trial variants included: I – an organic farming system without any biological products used ...