Wothirira wanzeru ndi mafoni kukapanda kuleka ulimi wothirira mbatata
Chaka chilichonse, Association of Irrigation ikukondwerera mwezi wanzeru wa Irrigation kuti ipititse patsogolo zogulitsa, machitidwe ndi ntchito zomwe zimalola kugwiritsa ntchito bwino madzi. Munkhaniyi, tiwonetsa momwe alimi angasungire madzi posunga zokolola zawo ndi ulimi wothirira wama drip (MDI).
Monga wogulitsa pakati pa kumwera chakumadzulo kwa Kansas kwazaka zopitilira 40, zidawonekeratu kwa Monty Teeter kuti madzi m'madzi amadzi akuchepa. Sizachilendo m'derali kumva za zitsime zomwe zimatha kutulutsa malita opitilira 1,000 pamphindi zaka 20 zapitazo zomwe zitha kungopopera malita 200 pamphindi lero. Teeter adatsimikiza kuti china chake chikufunika kusintha kuti tipewe kutopa kwa madzi apansi panthaka. Chifukwa chake, Dragon-Line LLC idakhazikitsidwa ku 2015 ndi ntchito yosavuta: "Pangani dontho lililonse kuwerengera."
Dragon-Line imapereka njira yothirira kwambiri yothirira mafoni pamsika komanso njira yabwino kwambiri yothirira ndi pivot. Machitidwe awa a MDI adapangidwa kuti azigwirizana ndi mtundu uliwonse wa pivot kapena makina osunthira. Izi ndizotheka chifukwa chakuyambitsa kwamphamvu zotulutsa madzi zomwe zimaloleza kugwiritsa ntchito madzi mosadukiza popanda kufunikira owongolera. Emitters amayamba kugwira ntchito pa 8 PSI ndikukhala ndi 2-galoni pa ola limodzi osasinthasintha pang'ono pamayendedwe awo mpaka 60 PSI. Ndiyamika luso, mafoni kukapanda kuleka ulimi wothirira machitidwe akhoza:
- Kukwaniritsa kugwiritsa ntchito bwino kwa 98%;
- Kuchulukitsa kulowetsedwa kwamadzi m'nthaka;
- Kuthetsa kutayika kwa madzi chifukwa cha kuyendetsa mphepo;
- Kuchepetsa kutayika kwa madzi othirira kukhala nthunzi;
- Chotsani magudumu m'munda; ndipo
- Kuchepetsa madzi othirira madzi, ngakhale pamapiri otsetsereka
Chimodzi mwazinthu zothandiza kwambiri pantchito ya Dragon-Line ndi msonkhano wake wopambana ndi zingwe za V-jack. Msonkhano wa winch umalola kusinthasintha kwa njira yothirira m'mizere yambewu, chifukwa kukhazikitsidwa kwa mizere yodontha yokhudzana ndi mzere kumatha kusinthidwa nthawi yonse yokula. Ogwiritsa ntchito amatha kumera mbewu ndi njira yawo yodontha popanga mzere wothira ndi madzi othirira musanadzalemo, ndikutsatira ndikuthirira mbewuyo mutabzala. Izi zipanga malo oyenera kumera mbewu popanda kuwononga madzi kumanyowetsa mzere wonse. Mfundo imeneyi imaperekanso njira imodzi yabwino kwambiri yobweretsera mbewu, chifukwa michere imatha kudyetsedwa supuni pafupi ndi mizu kuti ipezeke mwachangu.
Ntchito zina pamsonkhanowu zimaphatikizapo kugwiritsa ntchito madzi molunjika pazomera monga mbatata, anyezi ndi ma sugarbeets kuti zisawonongeke kumera kwa namsongole mkati mwa mzere, ndikuyika madzi othirira pafupi ndi mbewu. Zingwe zazingwe za V-jack zimalola kuyika zingwe zingapo zothandizira popanda kufunika kwa makwerero, ndi kutalika kwa zochulukira kuti kusinthidwe. Izi zitha kukhala zothandiza makamaka, chifukwa zimalola alimi kuti aziphatikiza mbewu monga chimanga mozungulira mosavuta kuposa mitundu yam'mbuyomu yothirira.
Njirayi imachepetsa kutuluka kwamadzi mpaka 20% ndikuwonjezera magwiridwe antchito a 40 mpaka 5%, ngakhale pazaka zopanda madzi. Ziwerengerozi zitha kukulirakulira, komabe, m'malo amphepo ndi owuma momwe madzi amatuluka mvula.