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ANALIZA OPŁACALNOŚCI OCHRONY CHEMICZNEJ PRZED CHWOSCIKIEM BURAKA (Cercospora beticola sacc.) NA ODMIANACH ODPORNYCH

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Górski D., Piszczek J., Ulatowska A., Gaj R.
Zagadnienia Doradztwa Rolniczego
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2015
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issue 3(81)
94-102
EN
Economic efficiency of plant fungicide protection of five resistant against Cercospora leaf spot sugar beet varieties were tested in two factor experiment on plots in 2013-2014. Sugar beet varieties (Finezja, Gallant, Jagusia, Milton and Pikador) and chemical protection against Cercospora leaf spot (protected and unprotected plots as a control) were factor of experiment. The index of leaf infection by Cercospora beticola and root yield were estimated at the late vegetation time. Economic effectiveness of fungicide protection against C. beticola were calculated using cost coverage ratio (Wpk) and rough profitability index E1 and E2. Protection of resistant sugar beet varieties in low pathogen pressure condition resulted in significant reduction of infection index and root yield increase. Yield increase compensated cost of fungicide protection in case of two among five varieties.
2
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OCENA STANU ZAGROŻENIA PLANTACJI BURAKA CUKROWEGO PRZEZ PRZĘDZIORKA CHMIELOWCA (TETRANYCHUS URTICAE KOCH) W WOJEWÓDZTWIE KUJAWSKO-POMORSKIM

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Ulatowska A., Górski D., Piszczek J.
Zagadnienia Doradztwa Rolniczego
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2015
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issue 4(82)
125-132
EN
Monitoring of the two-spotted spider mite occurrence were conducted on sugar beet crop in southern districts of Kuyavian-Pomeranian Voivodeship. Observations were carried out in 2014, from June to September. A total of 662 plantations were assessed. Monitoring results showed that 60% of sugar beet plantations were settled by two-spotted spider mite, 26,3 % of them severely.
3
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BURAKOCHWASTY I POŚPIECHY NA PLANTACJACH BURAKA CUKROWEGO

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Marzec K., Moliszewska E., Piszczek J.
Zagadnienia Doradztwa Rolniczego
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2018
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issue 1(91)
87-93
EN
Sugar beet is one of the more important crop in Poland. Occurrence of bolting plants as an effect of vernalization was previously known but such plants created seeds very rare. Sugar beet seed plants appeared in nineties of XX when seeds produced in Mediterranean Sea area were introduced to practice in Poland. They are a progeny of hybridization between breeding materials and beet wild species beet. The increase of seed plant number in field is a result of growers’ neglect. Monitoring in north west part of Poland shows that the situation in some fields is critical and number of weed beet is so high that it is almost impossible to sow sugar beet there.
4
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EFEKTYWNOŚĆ UPRAWY ODMIAN BURAKA CUKROWEGO TOLERANCYJNYCH NA MĄTWIKA BURAKOWEGO (HETERODERA SCHACHTII SCHMIDT) W WARUNKACH NISKIEJ PRESJI SZKODNIKA

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Górski D., Ulatowska A., Piszczek J.
Zagadnienia Doradztwa Rolniczego
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2017
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issue 2(88)
129-135
EN
One field trail was carried out in Żydowo in 2015-2016. The cultivation profitability of the five sugar beet varieties tolerant to pest compered to average profitability of three varieties without tolerance was assessed. The number of living eggs and larvae of Heterodera schachtii in field soil was below the harm threshold. The results showed that the cultivation of new tolerant sugar beet varieties on a bed of low pest pressure compared to varieties without tolerance was highly profitable. It was found that the additional cost incurred for the purchase of tolerant varieties in 2015 turned from 4.0 to 7.4 times depending on the variety, whereas in 2016 from 8.4 to 35.3 times, respectively.
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