Plant growth regulators (PGR) inonyanya kushandiswa kuderedza njodzi yekugara muzvirimwa zvakasvibirira, uye zvakare chishandiso chakakosha kubatsira midzi kukura uye kudzora kupatsanurwa kwembeu yezviyo.
Uye muchirimo ichi, zvirimwa zvakawanda zviri kunetsekana mushure mekunaya kwechando.Uyu muenzaniso wakanaka wekuti varimi vanozobatsirwa riini nekushandisa kwakaringana uye nekuchenjera kwezvigadzirwa izvi.
Dick Neale, technical maneja weHutchinsons, akati: “Gore rino chirimwa chegorosi chiri kwese.
"Chero chirimwa chakarimwa kubva munaGunyana uye kutanga kwaGumiguru chinogona kunzi chakajairika maererano nechirongwa chayo chezviwanikwa zvezvirimwa, nechinangwa chekuderedza pekugara."
Vanhu vanowanzofunga kuti chirimwa genetic zviwanikwa zvinoburitsa mamwe mapoinzi, asi izvi handizvo.Neal akataura kuti iyo split iller ine chekuita nekugadzirwa kwemashizha efodya, ayo ane chekuita nenguva yekupisa.
Kana zvirimwa zvisina kudyarwa kusvika munaNovember uye zvinodyarwa zvinobudirira munaDecember, nguva yavo yekupisa ichaderedzwa kuti ibudise mashizha uye kupatsanura.
Kunyangwe pasina huwandu hwezvigadziriso zvekukura zvichawedzera huwandu hwezvikamu pachirimwa, zvinogona kushandiswa pamwe nekutanga nitrogen kuchengetedza zvikamu zvakawanda zvakakohwewa.
Saizvozvo, kana chirimwa che-sub-till buds chagadzirira kuputika, PGR inogona kushandiswa chete kusimudzira kukura kwayo kana sub-bud buds iripo.
Nzira inonyanya kushanda yekuita izvi ndeyekuenzanisa kunze nekudzvinyirira midzi yekutonga nekugadzira kuwedzera midzi yekukura, uye maPGR anogona kushandiswa kare (asati akura nhanho 31).
Zvakadaro, VaNeale vakakurudzira kuti maPGR mazhinji haagone kushandiswa pamberi pedanho rekukura 30, saka ndapota tarisa kubvumidzwa pane iyo label.
Kune bhari, mhedzisiro yaro yakafanana neyegorosi padanho rekukura 30, asi zvakakosha kuterera kune kukura rebound yezvimwe zvigadzirwa.Zvadaro pazera remakore 31, akatora chiyero chepamusoro chehexanedione kana trinexapac-ethyl, asi pasina 3C kana Cycocel.
Chikonzero ndechekuti bhari inogara ichibhururuka kubva kuCycocel uye inogona kukonzera pekugara pakawanda kana uchishandisa chloropyri.
Zvadaro, VaNeale vachagara vachishandisa 2-chloroethylphosphonic acid-based products kuti vapedze bhari yechando muchikamu che39 chekukura kwebhari.
"Parizvino, bhari inongova 50% yehurefu hwayo hwekupedzisira, saka kana ikakura gare gare, unogona kubatwa."
Kushandiswa kwakananga kwetrinexapac-ethyl hakufanire kudarika 100ml/ha kuti iwane kutonga kwakanaka kweergonomics, asi haizodzore kureba kwedzinde rechirimwa.
Panguva imwecheteyo, zvirimwa zvinoda imwe dosi yenitrogen kuti ikure, ikure uye ienzane.
VaNeale vakakurudzira kuti iye pachake aisazoshandisa paraquat mune yekutanga PGR subtill manipulation application.
Kupinda muchikamu chechipiri chekushandiswa kwezvinomera genetic resources, varimi vanofanira kubhadhara zvakanyanya kumutemo wekukura we stem growth.
VaNeale vakayambira kuti: “Gore rino varimi vachada kungwarira nekuti pachamuka gorosi rakacherwa usiku ihwohwo rinoramba richiripo.
Mashizha matatu anogona kusvika padanho rekukura 31 pachinzvimbo che32, saka varimi vanozoda kunyatsoona mashizha anoonekwa padanho rekukura 31.
Kushandisa musanganiswa muchikamu chekukura 31 kunovimbisa kuti zvirimwa zvine simba redzinde rakanaka pasina kupfupisa zvakanyanya.
Akatsanangura kuti: “Ndaizoshandisa protohexanedione, trinexapac-ethyl, kana kuti musanganiswa une inosvika 1 litre/ha yecypermethrin,”
Kushandisa aya maapplication zvinoreva kuti hausi kuishandisa zvakanyanya, uye PGR inodzora chirimwa sezvakatarisirwa, pane kupfupisa.
VaNeale vakati: "Zvisinei, ndapota iva nechokwadi chekuchengeta chigadzirwa chakavakirwa pa 2-chloroethylphosphonic acid muhomwe yekumashure, nokuti hatizivi kuti kukura kunotevera kuchave kwakadini."
Kana muvhu muchiine hunyoro uye mamiriro ekunze achidziya, uye nguva yekukura yakareba, zvirimwa zvekunonoka kukohwa zvinogona kusimuka.
Kana chirimwa chikakura nekukurumidza muvhu nyoro, chinogona kuiswa gare gare kugadzirisa njodzi yakawedzera yekugara kwemidzi
Neal akati zvisinei nemamiriro ekunze echirimo, midzi yekunonoka kudyara mbesa idiki.
Njodzi huru gore rino ichava midzi yekugara panzvimbo pekugara, nokuti ivhu ratove mumamiriro asina kunaka uye rinogona kunge rakakomberedza midzi inotsigira.
Apa ndipo pakakosha simba kune hunde, ndosaka VaNeale vachikurudzira kushandisa PGR zvinyoro chete mwaka uno.
Akanyevera kuti: “Usamirira wobva washandisa mari yako.”"Vatongi vekukura kwezvirimwa ndizvo chete-kupfupisa mashanga handicho chinangwa chikuru."
Varimi vanofanira kuongorora uye kuona kana pasi pemiti paine kudya kwakakwana kuti vakwanise kuzvichengeta nekuzvibata panguva imwe chete.
Plant growth regulators (PGR) inotarisa mahormone system yezvirimwa uye inogona kushandiswa kudzora kukura kwechirimwa.
Kune akawanda akasiyana makemikari mapoka anokanganisa zvirimwa nenzira dzakasiyana, uye varimi vanogara vanofanirwa kutarisa zita vasati vashandisa chigadzirwa chimwe nechimwe.
“Varimi vanofanira kutarisa zita racho, nekuti mabhindauko akawanda akatoitika.Mimwe misiyano haigone kushandiswa kusvika padanho rekukura rechi31, asi mamwe haakwanise kudarika makumi matatu nerimwe, asi mamwe anogona kumirira kusvika padanho rechi39.Kuti urege kuishandisa.
Akati: “Paraquat inobata zvishoma nezvishoma mufekitari, ichivhura mabhureki zvishoma nezvishoma, asi kana mabhureki angoburitswa, anokundikana zvachose osungwazve.”
"Vanogona kushanda munzvimbo dzinotonhora kupfuura cypermethrin, uye vanoshanda nekukurumidza, asi vanodzikisira zvishoma, zvichikonzera kushomeka kudzokororwa."
Trinexapac-ethyl uye protohexanedione inobatsira kuumba madziro emasero akakora, saka chirimwa chinowedzera kukora uye madzinde akakora.Izvi zvinoshandawo muzvirimwa zvakaderera se5-6C.
Chloroethyl phosphonic acid ndiyo inoshandiswa muTerpal neCerone, asi Terpal yakasanganiswawo nemesochlor, zvinoreva kuti varimi vanofanira kungwarira pavanoishandisa.
“Ini handikurudzire kushandisa inodarika 0,4 litres/ha yeCrone, iyo yakaenzana ne1 litre/ha yeTerpal.
"Inokanganisa kukura kwedzinde repamusoro, uye hwindo remukana rakamanikana-pakati pematanho ekukura 39 ne45.
“Naizvozvo, kunyanya mubhari yechando, varimi vanofanira kungwarira kuti vasamira kwenguva refu vopotsa danho richangoburwa rekukura.”
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