Zifukwa za tsamba gudumu
1. Kutentha kwakukulu, chilala ndi kusowa kwa madzi
Ngati mbewu zimakumana ndi kutentha kwakukulu (kutentha kumapitilira madigiri 35) ndi nyengo yowuma panthawi yakukula ndipo sikungathe kudzaza madzi munthawi yake, masambawo amatuluka.
Panthawi ya kukula, chifukwa cha dera lalikulu la masamba, zotsatira zapawiri za kutentha kwakukulu ndi kuwala kolimba kumapangitsa kuti masamba ayambe kutuluka, ndipo kuthamanga kwa tsamba kumathamanga kwambiri kuposa kuthamanga kwa madzi ndi kusuntha ndi mizu, zomwe zingapangitse kuti chomeracho chikhale chosowa madzi, potero chimayambitsa The leaf stomata amakakamizika kutseka, tsamba lamasamba limakhala lopanda madzi, ndipo masamba apansi a zomera amatha kupindika mmwamba.
2. Mavuto a mpweya wabwino
Pamene kusiyana kwa kutentha pakati pa mkati ndi kunja kwa okhetsa kumakhala kwakukulu, ngati mphepo imatulutsidwa mwadzidzidzi, kusinthana kwa mpweya wozizira ndi wotentha mkati ndi kunja kwa khola kumakhala kolimba kwambiri, zomwe zidzachititsa kuti masamba a masamba a masamba apangidwe. . Mu siteji ya mmera, ndizodziwikiratu kuti mpweya wabwino mu khola ndi wothamanga kwambiri, ndipo kusinthana kwa mpweya wozizira wakunja ndi mpweya wotentha wamkati kumakhala kolimba, zomwe zingayambitse kupiringa kwa masamba pafupi ndi mpweya wabwino. Mtundu woterewu wa masamba okwera m'mwamba chifukwa cha mpweya wabwino nthawi zambiri umayambira kunsonga kwa tsamba, ndipo tsamba limakhala ngati mapazi a nkhuku, ndipo nsonga yowuma imakhala yoyera m'mphepete mwazovuta kwambiri.
3. Vuto la kuwonongeka kwa mankhwala
Pamene kutentha kumakwera, makamaka m'chilimwe, pamene kutentha kuli kwakukulu, phytotoxicity idzachitika ngati simusamala popopera mankhwala. . Mwachitsanzo, phytotoxicity yomwe imabwera chifukwa cha kugwiritsa ntchito molakwika kwa hormone 2,4-D imayambitsa kupindika kwa masamba kapena malo okulirapo, masamba atsopano sangathe kuwululidwa bwino, m'mphepete mwa masamba amapindika ndikupunduka, zimayambira ndi mipesa zimakwezedwa, komanso mtundu. imakhala yopepuka.
4. Umuna wochuluka
Ngati mbewu ikugwiritsa ntchito feteleza wochulukirapo, kuchuluka kwa nthaka mumizu kumawonjezeka, zomwe zingalepheretse kuyamwa kwamadzi ndi mizu, kotero kuti masamba akusowa madzi, zomwe zimapangitsa kuti timapepala titembenuke ndipo pukuta.
Mwachitsanzo, feteleza wa ammonium nayitrogeni akathiridwa m’nthaka, nthiti zapakati za masamba ang’onoang’ono pamasamba okhwima zimakwezedwa, timapepala tating’ono ting’onoting’ono tating’ono ting’onoting’ono, ndipo masambawo amatembenuka n’kupindika.
Makamaka m'madera a saline-alkali, pamene mchere wa mchere wa dothi uli wochuluka, zomwe zimachitika kuti masamba azipiringizika amatha kuchitika.
5. Kuperewera
Chomeracho chikasowa phosphorous, potaziyamu, sulfure, calcium, mkuwa, ndi zinthu zina, chikhoza kuyambitsa zizindikiro za masamba. Awa ndi ma curls atsamba achilengedwe, omwe nthawi zambiri amagawika pamasamba a chomera chonse, popanda zizindikiro zamtundu wowala wa mitsempha, ndipo nthawi zambiri amapezeka pamasamba a mbewu yonse.
6. Kusamalidwa bwino m'munda
Zamasamba zikadulidwa msanga kwambiri kapena mbewu zimadulidwa msanga komanso zolemera kwambiri. Ngati masamba ayamba kale kwambiri, n'zosavuta kuswana masamba a axillary, zomwe sizimapangitsa kuti phosphoric acid mu masamba a masamba asamutsidwe, zomwe zimayambitsa kukalamba koyamba kwa masamba apansi ndi kupindika kwa masamba. Ngati mbewu zafoledwa molawirira kwambiri ndikuduliridwa mochulukira, sizingangokhudza kukula kwa mizu yapansi panthaka, kuchepetsa kuchuluka kwa mizu, komanso kupangitsa kuti magawo omwe ali pamwambawa akule movutikira, kukhudza kukula ndi kukula bwino. za masamba, ndikupangitsa tsamba kugudubuza.
7. Matenda
Ma virus nthawi zambiri amafalitsidwa ndi nsabwe za m'masamba ndi whitefly. Matenda a virus akapezeka m'chomera, masamba onse kapena mbali yake imapindikira m'mwamba kuchokera pamwamba mpaka pansi, ndipo nthawi yomweyo, masambawo amawonekera ngati chlorotic, kutsika, kutsika, ndi kusakanikirana. ndi masamba apamwamba.
M'kupita kwanthawi kwa matenda a nkhungu ya masamba, masambawo amapindika pang'onopang'ono kuchokera pansi kupita pamwamba, ndipo masamba omwe ali m'munsi mwa chomera chodwala amayamba kutenga kachilomboka, kenako pang'onopang'ono kufalikira mmwamba, ndikupanga masamba a chomera kukhala achikasu-bulauni. ndi youma.
Nthawi yotumiza: Nov-14-2022
