Kugwiritsiridwa ntchito kochulukira kwa nthawi yophukiranso ndi mbewu zovundikira m'kasinthasintha wolima kumatanthauza kuti kuchuluka kwa udzu kumachulukirachulukira ku UK. Cleavers, mayweed ndi shepherd chikwama, mwachitsanzo, amatha kuchulukana mwachangu munyengo imodzi.
Alimi a mbatata akumva kupsinjika kwamitengo kumapeto kwa chaka chino atha kuyang'ana zosakaniza zosakaniza zopha udzu kuti zikhale zotsika mtengo zisanamere, olimbikitsa. Syngenta Woyang'anira zaukadaulo, Andy Cunningham.
"Kuyambitsa kwaposachedwa kwa mankhwala ophera mbatata kwawonjezera zomwe akatswiri azachuma angasankhe. Nthawi zambiri, zosakaniza zosavuta zimatha kukwaniritsa chilichonse chomwe alimi akufuna, pamtengo wocheperako," akutero.
"Zambiri mwa namsongole zomwe zimalemetsa kumera kwa mbatata zitha kuwongoleredwa, pogwiritsa ntchito mphamvu zosakaniza kuti zikulitse udzu," adalangiza.
Mayesero aposachedwa a nyengo adawonetsa chisakanizo cha Defy (prosulfocarb) pa 4.0 l/ha + metabromuron pamlingo wotsikirapo wa 1.0 l/ha, mwachitsanzo, adakwanitsa kuwongolera namsongole wamasamba, kuphatikiza chickweed, mayweed, cleaver ndi shepherd's. chikwama. Kuthamanga kwa udzu kosachiritsika kuchokera ku mitundu iyi kunali kupitirira 70 pa mita imodzi2.
Kuphatikiza kumeneko, komwe kumangotengera ndalama zokwana £43 pa hekitala pamitengo yapano, kunali kothandiza kwambiri kuyerekeza ndi Defy pa 3.0 l/ha ndi metabromuron pamlingo wa 2.0 l/ha, zomwe zingawononge pafupifupi £55/ha ndipo zidawoneka zofooka pang'ono. pa cleavers. Kugwiritsa ntchito Defy pa 4.0 l/ha kuphatikiza metribuzin pa 0.5 l/ha kungachepetsenso ndalama, koma kuyesako kunawonetsa kuti zotsatira zonse pa namsongole zitha kuchepetsedwa.
"Ndikofunikira kudziwa kuchuluka kwa udzu wofunikira pakuphatikiza zosakaniza zogwira ntchito zotsika mtengo komanso mitengo yoyenera," adalangiza Mr Cunningham.
Komanso kuchuluka kwa namsongole wa masamba otakata omwe amayendetsedwa ndi Defy, imaperekanso kuwongolera udzu wa udzu kuphatikiza udzu ndi ryegrass. Kugwiritsa ntchito kwambiri kumapangitsa kuti ntchito yotsalayo ikhale yotsalira ndipo kumapangitsa kuti minda ikhale yabwino mukangobzala, mpaka nthaka itakwera pamwamba pa mphukira za mbatata zomwe zatuluka, kuti minda ikhale yaukhondo mpaka mbewu zitamera.
Mayesero atsopano a mbatata a Syngenta a nyengo ya 2022 akuyenera kufufuza phindu lowonjezera la udzu wochuluka kuchokera pakukula kwa Defy kufika pa 5.0 l/ha, pamtengo wowonjezera pazovuta kwambiri, komanso kusakaniza ndi mankhwala atsopano komanso omwe alipo kale. .
“Njira zina zokhala ndi mankhwala ophera udzu atsopano poyeserera zimawonjezera ndalama zokwana £100 pa hekitala, zina zotsika mpaka £20. Ndikofunikira kuseka zomwe gawo lililonse likuthandizira, kuti titha kusankha bwino mtsogolo, "adaonjeza.
Kuchulukitsa udzu
Mwachitsanzo, kachikwama ka abusa kamodzi kamatha kubala njere zopitirira 3000, ndipo imatha kupalasa njinga mibadwo itatu munyengo imodzi ngati sichikuyendetsedwa bwino. Mbewuzo zimakhala ndi moyo wautali ndipo zimatuluka msanga zikabweretsedwa pamwamba ndi minda ya mbatata.
"Alimi akuyeneranso kudziwa kuti chikwama cha m'busa chimakhala ndi matuza oyera, omwe amatha kufalikira ku mbewu za brassica ngati atakula mosinthasintha," anachenjeza a Cunningham. Ngakhale zimawonedwa ngati zosavuta kuwongolera, zolemetsa ndi mtengo wowongolera zikukwera.