Lub hauv paus turf yog me ntsis zoo dua li cov nyom zoo tib yam, thiab cov nyom nyom no tsis yog cov khoom qub. Vim li no, dab tsi yuav tsum tau them sai sai rau thaum weeding cov nyom puag, cia peb saib hnub no!
Cov av uas muaj cov ntsiab lus siab ntawm cov organic muaj cov khoom zoo, muaj peev xwm adsorption loj rau cov tshuaj tua kab mob, thiab ntau cov kab mob hauv av, kev ua haujlwm hnyav, thiab kev siv tshuaj tua kab yog degraded, yog li qhov ntau npaum li cas tuaj yeem tsim nyog; thaum xuab zeb loam muaj coarse hais thiab me me adsorption ntawm tshuaj tua kab. Cov tshuaj molecules feem ntau yog dawb nyob rau hauv cov av hais, nrog rau kev ua kom muaj zog, yooj yim phytotoxicity, thiab cov tshuaj yuav raug txo kom tsim nyog. Tsis tas li ntawd, nyob rau hauv cov xwm txheej kub thiab nag, cov neeg siv tshuaj yuav tsum raug txo kom tsim nyog; Kev txwv qis ntawm cov tshuaj yuav tsum tau siv thaum cov nroj tsuag yog teev, thiab qhov txwv sab saud yuav tsum tau siv thaum cov nroj tsuag loj. Txhawm rau nrhiav cov txiaj ntsig ntawm cov nroj tsuag, nce qhov ntau npaum li cas ntawm qhov xav tau, lossis sib tov cov tshuaj tsis sib xws (txhaj tshuaj), sib xyaw dej tsawg dhau (txhaj tshuaj), lossis ib feem ntawm cov concentration tom qab txau yog siab dhau, uas yooj yim ua rau cov nroj tsuag phytotoxicity. Hauv kev tsim cov tshuaj tua kab mob, nws yog ib qho tsim nyog yuav tsum tau tsim khoom raws li kev pom zoo ntau npaum li cas thiab cov concentration, tsim khoom raws li qhov kev faib ua feem, thiab ntsuas nrog cov cuab yeej ntsuas kom ntseeg tau qhov tseeb npaum li cas.
Kev xaiv kom raug ntawm lub sijhawm ntawm daim ntawv thov yog txawv ntawm cov qauv ntawm daim ntawv thov. Qhov rhiab heev ntawm cov nroj tsuag rau cov tshuaj tua kab mob thaum lub sij hawm loj hlob yog txawv. Tsuav yog siv cov tshuaj nyob rau lub sijhawm rhiab tshaj plaws, qhov zoo tshaj plaws los tiv thaiv -tua nyhuv tuaj yeem ua tiav. Nyob rau hauv ib txwm muaj xwm txheej, cov nroj tsuag yog cov rhiab heev rau cov av kho herbicides ntawm germination, thiab rhiab heev rau qia thiab nplooj kho herbicides ntawm 2--3 nplooj theem. Hais txog kev nplua rau cov nroj tsuag, nws yog ib qho tsim nyog yuav tau siv nws ua ntej cov nroj tsuag tawm. Thaum cov nroj tsuag tau loj hlob, qhov kev tiv thaiv rau cov tshuaj tua kab yuav raug ntxiv thiab cov nyhuv ntawm cov nroj tsuag yuav tsis zoo.
