cov khoom

1. Hail-proof net npog kev cog qoob loo yog qhov ua tau zoo thiab ib puag ncig tus phooj ywg tshiab ua liaj ua teb thev naus laus zis uas nce ntau lawm.Los ntawm kev npog lub scaffolding los tsim ib qho kev sib cais kev sib cais, cov lawg yog khaws cia tawm ntawm lub vas thiab tiv thaiv txhua yam ntawm lawg, Frost, los nag thiab daus, thiab lwm yam huab cua, los tiv thaiv cov qoob loo los ntawm kev puas tsuaj ntawm huab cua.Tsis tas li ntawd, nws muaj lub luag haujlwm ntawm lub teeb kis tau tus mob thiab nruab nrab shading, uas tsim cov kev mob zoo rau kev loj hlob ntawm cov qoob loo.Qhov kev tiv thaiv muaj los ntawm kev tiv thaiv hail nets txhais tau tias muaj kev nyab xeeb tiv thaiv ob lub xyoo tam sim no cov qoob loo thiab tiv thaiv kev puas tsuaj. Frost, uas crystallizes ntawm lub netting es tsis txhob ntawm cov nroj tsuag.
2. Cov tshuaj tiv thaiv hail tuaj yeem tiv thaiv kab tsuag.Nws yog dav siv nyob rau hauv kev sib cais ntawm pollen kis tau tus mob thaum tsim cov thawj noob ntawm zaub thiab rapeseed.Thaum cov nroj tsuag luam yeeb tau loj hlob, nws yog siv rau kev tswj kab thiab tiv thaiv kab mob.Nws tuaj yeem txo qis kev siv tshuaj tua kab hauv cov zaub ua liaj ua teb, kom cov qoob loo tso tawm kom zoo thiab huv si, thiab muab kev lav zoo rau kev txhim kho thiab tsim cov khoom lag luam ntsuab tsis muaj kuab paug.Tam sim no, nws yog thawj qhov kev xaiv rau lub cev kev tswj ntawm ntau yam qoob loo thiab zaub kab tsuag.