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The experiment was carried out in three localities: Łagiewniki, Zielecin, Małyszyn. The subject of the study was an open-pollinated cultivar – Casoar and a hybrid cultivar – Visby. Seeding rate of open-pollinated and hybrid cultivars amounted to 40, 80 and 35, 70 seeds/m2. Two spring nitrogen fertilization levels 160 and 220 kg N/ha and three plant protection programs were applied. The most intensive...
In two performed trials powdery mildew of tomato was observed at middle level of infection on tomato. Tank mix of azoxystrobin and difenoconazole in concentration respectively 0.011 + 0.006, sulphur, bupirimat and difenoconazole showed high efficacy in control of powdery mildew (Oidium lycopersici) on tomato grown under cover. Orange oil, grapefruit extract and melaleuca oil gave satisfactory control...
The experiments were carried out on potato cultivar Mila — medium early. This paper presents the effect fungicides on health state tubers during storage. Rhizoctonia solani and Streptomyces scabies were characterized at harvest time. Percentage of tubers attacked by: Phytophthora infestans, Fusarium spp., Erwinia carotovora subsp. carotovora, Helminthosporium solani were characterized three months...
This paper presents the effect of selected fungicides on late blight of potato was estimated. The experiments were carried out on potato cultivar Mila. Statistically all fungicides taken under research significantly decreased the grade of potato plants affection. The investigation showed that the fungicides: Brestanid 502 SC and Tattoo C 750 SC protect potato tubers after attak by late blight.
W pracy przeanalizowano wyniki 5-letnich badań statycznych nad wpływem płodozmianu i chemicznej ochrony roślin na wielkość, stabilność i strukturę plonu dwóch odmian jęczmienia jarego - Diva i Menuet. Uprawiano go w trzeciej rotacji 5-polowego płodozmianu: burak cukrowy (obornik) - jęczmień jary - rzepak ozimy - pszenica ozima - bobik oraz równolegle w 16-20-letniej monokulturze. Stosowano trzy poziomy...
W pracy przeanalizowano wyniki 5-letnich statycznych badań polowych nad wpływem płodozmianu i chemicznej ochrony roślin na wielkość, stabilność i strukturę plonu dwóch odmian owsa, Dragon i Rumak. Owies uprawiano w trzeciej rotacji 5-polowego płodozmianu: ziemniak (obornik) - owies - len włóknisty - żyto ozime — kukurydza oraz równolegle w 16-20-1etniej monokulturze. Stosowano trzy poziomy ochrony...
W trzyletnim doświadczeniu polowym z czterema odmianami ziemniaka: Heban, Ibis, Irga i Marta na tle fungicydów do zwalczania zarazy stosowano zróżnicowane nawożenie azotem (0, 50, 100, 150 i 200 kg N • ha-1). W latach mokrych fungicydy znacznie ograniczyły stopień porażenia części nadziemnych roślin przez zarazę ziemniaka. W serii z fungicydami nawożenie N powodowało przyrost plonu do dawki 100 kg...
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