Izeluleko ezintsha zokufakwa kwe-Amistar emiseleni ngesikhathi sokutshala amazambane zizofinyelela indawo egcwele yokuvikela eduze kwe-tuber kamama lapho kusetshenziswa izitshalo zokutshala amabhande anesivinini esikhulu, kweluleka uchwepheshe we-Syngenta Application, u-Harry Fordham.
Ekhuluma ku-Syngenta Potato Science Seed & Soil Pathogen webinar yale sizini, uveze ukuthi abalimi besimanje bayakwazi ukusebenza ngesivinini esiphezulu kakhulu, uma kuqhathaniswa nabatshali benkomishi bendabuko. "Lokho kungase kubeke engcupheni ukufakwa kwesifutho endaweni okuqondiswe kuyo emhlabathini ozungeza ishubhu engumama ngesifutho sokuqala esifakwe emshinini wokutshala, okungabangela engcupheni yokukhukhuleka ngesivinini esiphezulu," waxwayisa.
Ubuchwepheshe obusha be-nozzle
Ngendima ebalulekile ye-Amistar yokulawula kokubili amagciwane amachashazi amnyama kanye ne-Rhizoctonia enhlabathini, iminyaka emithathu yokuhlolwa kwe-Syngenta yayiphenye ubuchwepheshe obusha be-nozzle, ukusetshenziswa komthamo wamanzi kanye nokusethwa komumo wombhobho.
UMnu Fordham uveze imbobo yoqobo yethusi ye-AZ emseleni - engasatholakali - inombombo omncane kakhulu okhiqiza amaconsi amahle angakwazi ukukhukhuleka. Ezinye zezindlela ezikhethiwe ezivivinywe zihlanganisa ubuchwepheshe bekhoni elingenalutho ukunikeza ibhande elibanzi lokumboza inhlabathi ngesivinini, kanye ne-orifice enkulu engakwazi ukuvaleka nokukhukhuleka. Imiphumela yokuhlolwa ibonise ukuthi i-Lechler TR80 isebenze kahle kakhulu kumasizini alandelanayo. Ukusetha okunconyiwe kwakunezimbobo ezimbili, eyodwa ngaphambili kanye neyesibili ngemuva kwesicathulo se-planter, ukufafaza inhlabathi njengoba iwela emuva ukumboza isigaxa esitshaliwe.
Njengoba ucwaningo lukhombisa ngokuphindaphindiwe ukusebenza ku-100 l/ha lukhiqiza imiphumela engcono kakhulu kukho kokubili isivuno sezitshalo kanye nekhwalithi ye-tuber, uma kuqhathaniswa no-50 l/ha, i-TR80 yayisetshenziswa ngombhobho ongu-015 kuzo zombili izimo, wabika. Enye inhlanganisela eyabonisa isithembiso esihle kusukela onyakeni owodwa wezivivinyo kwaba ukusethwa okwagqugquzelwa eJalimane, kusetshenziswa imibhobho emibili ye-Lechler FT90, eyayisethelwe ukuletha u-33% wesifutho ngaphambili kwesicathulo, ngokufaka umlomo wombhobho ongu-01, kanye nama-66% ngemuva emhlabathini ovalayo, ngombhobho ongu-02.
Akunakwenzeka ukuvimba
“I-nozzle enkulu uma kuqhathaniswa ngeke ivimbe. Okuthakazelisa nakakhulu ukuthi idizayini ye-nozzle yangaphambili, ngakho inikeza izinga elithile lokunciphisa ukukhukhuleka futhi kungase kube inhlanganisela okufanele icatshangelwe, ikakhulukazi ngabatshali besivinini esiphezulu, "esho ekhuthaza.
UMnu Fordham ubike ukuthi kuzo zonke izivivinyo zaseNorfolk, ezenziwa ensimini ekhethelwe ubungozi obukhulu bechashaza elimnyama elifakwe emhlabathini, ukusetshenziswa kwe-Amistar kunciphisa izigameko zokutheleleka okunzima ezigabeni ezivunwayo. Imiphumela iphinde yathuthukiswa ukulawulwa kwezifo kwe-silver scurf kanye nesivuno esikhulu esithengiswayo kuwo wonke amasu ohlelo lwe-Amistar.
Umphathi wezobuchwepheshe weSyngenta Potato, uMichael Tait, uxwayise ucwaningo lubonise ukuthi ichashazi elimnyama (I-Coletotricium iqoqo) ibilokhu ibambezeleka kakhulu enhlabathini, kanye nezinkomba zokuthi leli gciwane libandakanyeka ku- early die back complex elilokhu libikwa ezitshalweni zamazambane.
"I-Microsclerotia yechashazi elimnyama ingahlala iminyaka eyisishiyagalombili noma ngaphezulu enhlabathini, okusho ukuthi uma isisunguliwe ingaphila isuka kwesinye isilimo samazambane iye kwesinye ngokushintshana," esho. I-pathogen ithandwa izimo ezifudumele, ezimanzi ezivame ukuhlotshaniswa nokushintsha kwesimo sezulu.
"Sibone imiphumela emihle kakhulu yokwelashwa kwe-tuber yembewu ye-Maxim, ukuvimbela ukudluliswa kwe-pathogen ekhiqizwa yimbewu kuma-tubers amantombazane. Kodwa njengoba lesi sifo manje sesidlange kakhulu enhlabathini, abalimi kanye nezazi zezolimo namahlathi kudingeka babheke inhlanganisela yabo bobabili uMaxim no-Amistar ukuze balawule imiphumela yaso elimazayo,” weluleka.
Inhlanganisela yembewu nezilawuli ezithwalwa yinhlabathi iphinde yasebenza ikakhulukazi ekulweni ne-Rhizoctonia black scurf, kusikisela uMichael. Ukuhlolwa kwamaDashi kubonise ukuthi i-Amistar emiseleni kanye nokwelashwa kwembewu ye-Maxim ngakunye kunciphise ngempumelelo inkomba ye-Rhizoctonia ebaliwe ngesigamu - isilinganiso esihlola kokubili ubukhali kanye nesigameko sokutheleleka - ukusuka ku-16 kokungelashiwe kuye ku-7.5 noma ku-8 ngokulandelanayo. Lapho le mikhiqizo yomibili isetshenziswa ndawonye, nokho, inkomba yehliswa kakhulu, yaba ngu-3 nje kuphela.
I-Syngenta ephelele Isayensi Yamazambane Imbewu Nomhlaba