Ukhetho lweSayensi lweMichiza yeNgqolowa

Inyathelo lokuqala:

Ukhula olukhula emasimini engqolowa lwahlulwe kakhulu lube ziindidi ezimbini: ukhula olukhula ngengca kunye nokhula olukhula ngamagqabi abanzi.

Ukhula olunengca lunamagqabi amancinci, njenge-American privet, i-Japanese American privet, i-wild oat, kunye ne-ryegrass;

Ukhula olunamagqabi abanzi lunamagqabi amakhulu, njengee-cleavers, i-shepherd's purse, kunye ne-capernaum.

Kwintsimi yengqolowa ezaliswe lukhula olunamagqabi abanzi, amayeza okubulala ukhula afana neTribenuron (-methyl), Thifensulfuron, Florasulam, kunye neFluroxypyr angasetyenziswa.

Ukuba kukho ukhula olune-dicotyledonous olumelana nokumelana nezityalo ezingafunekiyo, i-20% yeFluroxypyr ingaqwalaselwa.

Kwintsimi ezinokhula olunengca eninzi, amayeza okubulala ukhula afana neMesosulfuron (-methyl), iPyroxsulam, iFlucarbazone (-sodium), kunye nePinoxaden angasetyenziswa.

Ukuba ingca kunye nokhula olunamagqabi abanzi luvela kunye endle, kuyimfuneko ukuxuba ngokwengqiqo iintlobo ezimbini zemithi yokubulala ukhula ekhankanyiweyo apha ngasentla, okanye ukhethe ngokuthe ngqo imveliso edibeneyo enokulawula zombini iintlobo zokhula ngaxeshanye.

Umzekelo, izifundo zibonise ukuba i-3% yeMesosulfuron (-methyl) isebenza kakhulu kwiingca ezifana ne-barnyard grass, ngelixa i-5% yePinoxaden ilungile kakhulu kwiingca eziluhlaza zaseMelika kunye ne-Japanese American bluegrass; zombini zikhetho ezikhuselekileyo.

Inyathelo lesiBini:

Kukho amaxesha amabini abalulekileyo okulawula ukhula ngamakhemikhali emasimini engqolowa: ngaphambi kobusika (phakathi kukaNovemba ukuya ekupheleni kukaDisemba) nasentwasahlobo (ukusuka ekuhlazeni ingqolowa ukuya ekudibaneni).

Ngaphambi kokuba ubusika bube lixesha elihle lokulawula ukhula ngamakhemikhali. Ngeli xesha, uninzi lokhula luye lwavela, luselula, kwaye alunawo amandla okumelana nemithi yokubulala ukhula.

Unyango olunye lunokulawula ngokusisiseko ukusasazeka kokhula kulo lonke ixesha lonyaka, kwaye umlinganiselo umncinci, ixabiso liphantsi, kwaye lukhuselekile nakwingqolowa.

Inyathelo Lesithathu:

Uninzi lwemithi yokubulala ukhula ifuna ukusetyenziswa xa ubushushu obuqhelekileyo bemihla ngemihla bungaphezulu kwe-6℃, kungcono ukuba itshizwe phakathi kwe-10 kusasa kunye ne-3 emva kwemini ngeentsuku ezinelanga.

Ngaphambi kokuba ufake izibulali-zinambuzane, qiniseka ukuba ujonga uqikelelo lwemozulu kwaye uqinisekise ukuba akuyi kubakho kwehla okukhulu kobushushu okanye amaza abandayo kwiintsuku ezi-5 emva kokufaka, kungenjalo kunokubakho umonakalo kwizibulali-zinambuzane.

Xa umhlaba womile, kufuneka unyuswe amanzi ngokufanelekileyo ukuqinisekisa ukusebenza kakuhle kwesibulali-zinambuzane.