Pinoxaden: Mtsogoleri wa Mankhwala Ophera Tizilombo ku Tirigu

Dzina lachingerezi la Pinoxaden; dzina la mankhwala ndi 8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H- Pyrazolo[1,2-d][1,4,5]oxadiazepine-9-yl 2,2-dimethylpropionate; Fomula ya molekyulu: C23H32N2O4; Kulemera kwa molekyulu: 400.5; Nambala yolowera ya CAS: [243973-20-8]; fomula yomangira ikuwonetsedwa pachithunzi . Ndi mankhwala ophera udzu omwe adapangidwa ndi Syngenta pambuyo pa kutuluka komanso kusankha. Idayambitsidwa mu 2006 ndipo malonda ake mu 2007 adapitilira US$100 miliyoni.

Njira yogwirira ntchito

Pinoxaden ndi m'gulu latsopano la mankhwala ophera udzu otchedwa phenylpyrazoline ndipo ndi choletsa cha acetyl-CoA carboxylase (ACC). Njira yake yogwirira ntchito makamaka ndikuletsa kupanga mafuta acid, zomwe zimapangitsa kuti maselo atsekeke komanso kugawikana, komanso kufa kwa zomera za udzu, zomwe zimapangitsa kuti udzu uyambe kugwira ntchito bwino. Mankhwalawa amagwiritsidwa ntchito makamaka ngati mankhwala ophera udzu akangomera m'minda ya chimanga kuti achepetse udzu.

Kugwiritsa ntchito

Pinoxaden ndi mankhwala ophera udzu wosankha, wothandiza kufalitsa udzu, ogwira ntchito bwino kwambiri, okhala ndi ma spectrum ambiri, ndipo amalowa mwachangu kudzera mu tsinde ndi masamba. Kulamulira udzu wa pachaka wa gramineous pambuyo pa kumera m'minda ya tirigu ndi barele, monga sagebrush, Japanese sagebrush, wild oats, ryegrass, thorngrass, foxtail, hard grass, serratia ndi thorngrass, ndi zina zotero. Imakhalanso ndi mphamvu yabwino kwambiri yolamulira udzu wouma monga ryegrass. Mlingo wa chogwiritsira ntchito ndi 30-60 g/hm2. Pinoxaden ndi yoyenera kwambiri pa chimanga cha masika; kuti zinthu ziwonjezeke chitetezo cha mankhwala, fenoxafen yotetezeka imawonjezedwa.

1. Kuyamba msanga. Patatha milungu 1 mpaka 3 kuchokera pamene mankhwalawa atengedwa, zizindikiro za poizoni wa zomera zimawonekera, ndipo meristem imasiya kukula msanga ndipo imatuluka msanga;

2. Chitetezo champhamvu pa chilengedwe. Chotetezeka pa tirigu, barele ndi chitetezo chachilengedwe chomwe sichili cholunjika, chotetezeka pa mbewu zina ndi chilengedwe;

3. Kagwiridwe kake ka ntchito ndi kapadera ndipo chiopsezo cha kukana ndi chochepa. Pinoxaden ili ndi kapangidwe katsopano ka mankhwala komwe kali ndi malo osiyanasiyana ogwirira ntchito, zomwe zimawonjezera malo ake okulirapo pantchito yoyang'anira kukana.