Nā mea waena lāʻau lapaʻau

Nā mea waena lāʻau lapaʻau

I nā makahiki 1990, ʻoi aku ka ikaika o ka hoʻokūkū kūʻai ma waena o nā ʻoihana ma muli o ka hana ʻenehana o ka ammonia thiamethoxam oxime acid ma mua o 20 mau ʻoihana. 50000 / tons o AE - hoʻemi ʻia ke kumukūʻai hana ester mai ʻoi aku ma mua o 40 m / tons a hiki i kēia manawa ma lalo o 160000 / ton ʻoiai ʻo kēlā me kēia mea hana ka mea huna ʻenehana akā lawe i nā ʻano like ʻole o ka hoʻohana ʻana i nā ʻenehana hou i loko o 2 ~ 3 mau makahiki. E loaʻa ka hoʻolaha ʻana inā ʻaʻohe mākaukau hoʻomohala maikaʻi nā ʻoihana ma waena o ka ʻāina he paʻakikī pinepine i ka manawa lōʻihi e mālama i ke kumukūʻai a hāʻule koke nā kumukūʻai.

I kēia lā, ua hōʻea ka ammonia thiamethoxam oxime acid i ka nui o ka hoʻokūkū keʻokeʻo keʻokeʻo e hiki ai ke komo mua i ka ʻoihana a loaʻa kekahi ʻano o ka ʻoihana e like me kāu ʻenehana ponoʻī a me ke kapikala koho e hāʻawi i kekahi o nā huahana e like me hebei jintong. ʻO ka ʻoihana kemika lāʻau lapaʻau ka hana kūloko o ka ammonia mua o ka thiamethoxam oxime acid (me ka ʻoihana AE - active ester) akā ua haʻalele ʻia i kēia manawa ua ʻoi aku ka maikaʻi o ka hana ʻana o nā kālā iā lākou iho ma ke apo triazine a pālua i kona mana hana o 5 tons / mahina. ʻOi aku ka nui o ka mana hoʻolālā kumu ma mua o 10 mau manawa ma mua o ka shandong jincheng chemical i hoʻopau ʻia ka hana triazine apo a me ke kapikala kikowaena i hoʻohana ʻia i ka hana ʻana o ka ammonia thiamethoxam a me AE - oxime acid.

ʻO ka ester ikaika i hiki i ka 70 tons / mahina a me 50 tons / mahina ʻOiai i kēia manawa ma muli o nā kumu like ʻole o ka home ammonia thiamethoxam oxime acid a me ke apo triazine, ʻo ke ʻano o ka pau ʻole akā ʻaʻole nui ka manawa kūpono no ka hoʻomaka ʻana. Ke lawe nei ka hana ʻana i kēia mau huahana i kahi laina hou o ka ikaika piha o ka ʻoihana ma nā ʻano he nui he paʻakikī ke hoʻokūkū me kēia mau ʻoihana i hoʻokumu ʻia i ka wā e hoʻopau ʻia ai ka volatility mākeke a me kahi hui o nā ʻoihana.