Kunyangwe metamine fumigants-sodium metam uye potassium metam-yakaratidza yakavimbika zvakanyanya mukudzora sora, zvirwere, uye nematodes muminda yembatatisi kweanopfuura makumi mana emakore, zvakawanikwa zvichangobva kuwanikwa zvakasimbisa kuti kune akati wandei mamwe mashandisirwo echigadzirwa. kuwedzera kushanda zvakanaka.
Itsva data pamusoro pekufamba kwemametames muvhu mushure mekushandisa kune imwe "itsva". Vazhinji vaifungidzira kuti kufamba kwezvigadzirwa kumusoro, pasi uye kumativi kwaizova yunifomu pamusoro pechinhambwe che6 kusvika ku12 inches. Imwe fungidziro yakajairika yaive yekuti chigadzirwa chaizoramba chiri muvhu, kudzvinyirira tupukanana pasinei nemamiriro evhu.
Muna 2017, munyori wechinyorwa akatanga kushamisika kuti chii chaiitika muvhu mushure mekushandiswa kwemetham, apo nyanzvi dzakawanda dzeWashington onion dzakatanga kushamisika kana chigadzirwa chacho chiri kurasikirwa nekubudirira. Havana kuwana zvaitarisirwa. Munyori wechinyorwa akatenga miniRAE photoionization detector (PID) mushure mekudzidza nezve tekinoroji kubva kune vaongorori kumayunivhesiti makuru uye akatanga nzendo dzekuyera kuvepo kwemetham pakadzika kwakasiyana ivhu kwemaawa nemazuva mushure mekushandisa.
Mushure memakore matatu ekutsvakurudza, kuunganidza anopfuura 40 evhu masampuli akatorwa mumamiriro akasiyana-siyana, takawana mabhii makuru mashanu.
Tinodzidaidza kuti Mbiru shanu dzekufamba kwemetamu muvhu. Aya mazano matsva ndiwo akakosha pakugadzirisa kushanda kwemetham fumigant muvhu.
Kuchengetedza unyoro
Chengetedza hunyoro hwe80% muhuwandu hwevhu rose kutanga mazuva makumi matatu isati yaiswa uye mushure mekuisa kana zvichiita. Ivhu rakanyorova rinofambisa kufamba kwemetames, rinokurudzira kufema kwezvipembenene, uye rinobatsira kuchengetedza chigadzirwa. Kana unyoro hwevhu hwadonha kusvika pa30 muzana nekuda kwekupisa, mhepo, kana kufamba kwevhu kwakanyanyisa, kuverenga kuchanyangarika mukati memaawa, kwete mazuva. Neruzivo urwu, isu tava kunzwisisa kukosha kwakakosha kwe pre-wetting.
Placement strategy
Kuenzaniswa nemamwe mafumigants, iyo vapor pressure yezvigadzirwa zvemetham yakadzikira. Izvo hazvingoparadziri kusvika kure kana zvakaenzana sezvakafungwa nevaya vakaishandisa mumakore apfuura. Edzai ivhu kuti munyatsonzwisisa nzvimbo chaiyo yedenda renyu. Wobva wanyatsoisa chigadzirwa chako chemetam padhuze nezvinotarirwa zvipembenene nechemigation, kubvisa kana kubvisa zvakadzika.
Zvigadzirwa
Usarerutsa zvigadziriso zvidiki kumidziyo yaunoshandisa kugadzira ivhu, isa chigadzirwa, uye simbisa iyo application. Zvinokwanisika kusunungura ivhu zvishoma kana iwe usingaomesi uye uchisiya chigadzirwa kana pedyo nepamusoro pevhu.
Pest mweya
Zvigadzirwa zveMetam zvinonyanya kushanda kana mhodzi dzesora, zvirwere uye nematodes zvichifema uye zvichibudirira pamberi pekushandiswa kwechigadzirwa. Ivhu rakaoma zvakanyanya rinokanganisa kufema kwezvipembenene. Kana iwe usingakwanise kufungidzira kuti mhodzi dzemasora dzinobudirira mune imwe nharaunda, saka pamwe hadziite uye dzakanyanya kuoma kudzvinyirira.
Soil
Kufamba kwechigadzirwa kunogona kuganhurwa nevhu rakaoma, rakasungirirwa kana rine mavhinga. Dzivisa kushandisa chigadzirwa kune yakadzika chando pasi. Chese chaunogona kuita kuti ivhu risaoma chakakosha.
Mhedzisiro yedu inoratidza kuti zvigadzirwa zveMetam zvinoshanda sekare. Hapana chakachinja mukubudirira kwechigadzirwa chacho pachacho. Asi kana shanduko dzakaitwa kunzira dzekushandisa, kushandisa mbiru shanu segwara, kuvandudzwa kunooneka kunogoneka. Imwe neimwe yembiru shanu inonyanya kukosha, uye isu tava nedata rekuitsigira.