nkhani

I. "Gray Zone" ya Organic Standards

Potsegula “Malamulo Oyendetsera Chitsimikizo cha Organic Product Certification,” Ndime 7 ya Mutu 2 imatchula momveka bwino mitundu 59 ya mankhwala ophera tizilombo a zomera ndi mchere omwe amaloledwa kugwiritsidwa ntchito. Mankhwala ophera tizilombo monga azadirachtin ndi pyrethrins amaphatikizidwa kwambiri. Ngakhale kuti zinthu zimenezi zotengedwa ku zomera zachilengedwe zimatchedwa "kawopsedwe wochepa," kupopera mbewu mankhwalawa mopitirira muyeso kungayambitsebe zotsalira. Chodetsa nkhaŵa kwambiri ndi chakuti miyezo ya certification imakhazikitsa nthawi yoyeretsa nthaka ya miyezi 36, koma metabolites ya glyphosate kuchokera ku ulimi wam'mbuyomu amatha kupezeka m'madzi apansi pa malo ena ku North China Plain.

Milandu yachlorpyrifoszotsalira mu malipoti oyesa zimakhala ngati chenjezo. Malo amodzi ovomerezeka, oyandikana ndi minda yachikhalidwe, adakhudzidwa ndi kuwonongeka kwa mankhwala ophera tizilombo m'nyengo ya monsoon, zomwe zidapangitsa kuti azindikire 0.02 mg/kg ya zotsalira za organophosphorus m'masampuli a sipinachi. "Kuipitsa kopanda pake" kumeneku kukuwonetsa kusakwanira kwa njira zoperekera ziphaso zomwe zilipo poyang'anira chilengedwe chaulimi, ndikuwononga chiyero chaulimi wa organic.

II. Choonadi Chavumbulutsidwa M'ma Laboratories

Akamagwiritsa ntchito gas chromatography-mass spectrometry, akatswiri amaika malire ozindikira zitsanzo pamlingo wa 0.001 mg/kg. Deta ikuwonetsa kuti 90% ya zitsanzo zabwino zinali ndi milingo yotsalira 1/50 mpaka 1/100 yazamasamba wamba, zofanana ndi kuponya madontho awiri a inki mu dziwe losambira. Komabe, kupita patsogolo kwaukadaulo wamakono wozindikira kwathandizira kugwidwa kwa mamolekyu pamlingo wa biliyoni imodzi, kupangitsa kuti "zotsalira ziro" kukhala ntchito yosatheka.

Kuvuta kwa maunyolo opatsirana m'mbali sikungaganizidwe. Kuwonongeka kwa nyumba zosungiramo katundu chifukwa cha magalimoto osayeretsedwa bwino kumapangitsa 42% ya ziwopsezo, pomwe kukhudzana komwe kumachitika chifukwa choyika mosakanikirana mashelufu akumalo ogulitsira kumakhala 31%. Mochenjera kwambiri, maantibayotiki osakanizidwa muzinthu zina zopangira feteleza pamapeto pake amalowa m'maselo a masamba kudzera mu bioaccumulation.

III. Njira Yanzeru Yomanganso Chikhulupiliro

Poyang'anizana ndi lipoti loyesa, mlimi wa organic adawonetsa "transparent traceability system": Khodi ya QR pa phukusi lililonse imalola kukayikira kuchuluka kwa kusakaniza kwa Bordeaux ndi malipoti oyesa nthaka pamtunda wa makilomita atatu ozungulira. Njira iyi yoyika njira zopangira poyera ikumanganso chidaliro cha ogula.

Food chitetezo akatswiri amalangiza kutengera "patatu chiyeretso njira": akuwukha mu soda madzi kuwola mafuta sungunuka mankhwala, ntchito akupanga zotsukira kuchotsa pamwamba adsorbates, ndi blanching kwa 5 masekondi pa 100 ° C kuti inactivate kwachilengedwenso michere. Njirazi zimatha kuthetsa 97.6% ya zotsalira, zomwe zimapangitsa kuti chitetezo chaumoyo chikhale cholimba.

Deta yoyezetsa m'ma labotale siyenera kukhala chigamulo chokana kufunika kwa ulimi wa organic. Tikayerekeza 0.008 mg/kg ya zotsalira za chlorpyrifos ndi 1.2 mg/kg zopezeka mu udzu winawake wamba, titha kuwonabe mphamvu yayikulu ya machitidwe opangira organic pochepetsa kugwiritsa ntchito mankhwala ophera tizilombo. Mwina chiyero chenicheni sichikhala pa ziro, koma kuyandikira zero mosalekeza, zomwe zimafuna opanga, owongolera, ndi ogula kuti aziluke maukonde olimba kwambiri.