Wolemba Julia Martin-Ortega, Brent Jacobs ndi Dana Cordell

Popanda phosphorous chakudya sichingapangidwe, chifukwa zomera ndi zinyama zonse zimafunikira kuti zikule.Mwachidule: ngati palibe phosphorous, palibe moyo.Momwemonso, feteleza wopangidwa ndi phosphorous - ndi feteleza wa "P" mu "NPK" - wakhala wofunikira kwambiri pazakudya zapadziko lonse lapansi.

Phosphorous yambiri imachokera ku thanthwe la phosphate losasinthika, ndipo silingapangidwe mwachisawawa.Choncho alimi onse amafunikira mwayi wopeza, koma 85% mwa miyala ya phosphate yomwe yatsala padziko lapansi imapezeka m'mayiko asanu okha (ena omwe ndi "geopolitically complex"): Morocco, China, Egypt, Algeria ndi South Africa.

Makumi asanu ndi awiri pa 100 aliwonse amapezeka ku Morocco kokha.Izi zimapangitsa dongosolo lazakudya padziko lonse lapansi kukhala pachiwopsezo chosokonekera cha kupezeka kwa phosphorous komwe kungayambitse kukwera kwamitengo mwadzidzidzi.Mwachitsanzo, mu 2008 mtengo wa feteleza wa phosphate udakwera 800%.

Panthawi imodzimodziyo, kugwiritsa ntchito phosphorous pakupanga chakudya sikuthandiza kwambiri, kuchokera ku mgodi kupita kumunda mpaka mphanda.Amathamangira m'mitsinje ndi m'nyanja m'mitsinje ndi nyanja, kuwononga madzi omwe amatha kupha nsomba ndi zomera, ndikupangitsa madzi kukhala apoizoni kwambiri kuti asamwe.

Ku UK kokha, osakwana theka la matani 174,000 a phosphate omwe amatumizidwa kunja amagwiritsidwa ntchito bwino kulima chakudya, ndi mphamvu za phosphorous zofanana zomwe zimayesedwa mu EU yonse.Chifukwa chake, malire a mapulaneti ("malo otetezeka" padziko lapansi) a kuchuluka kwa phosphorous kulowa m'madzi am'madzi akhala akuphwanyidwa kalekale.

Pokhapokha titasintha momwe timagwiritsira ntchito phosphorous, kusokonekera kulikonse kwa chakudya kungayambitse vuto lazakudya padziko lonse lapansi chifukwa mayiko ambiri amadalira feteleza wochokera kunja.Kugwiritsa ntchito phosphorous m'njira yanzeru, kuphatikiza kugwiritsa ntchito phosphorous yobwezeretsedwanso, kungathandizenso mitsinje ndi nyanja zomwe zidakhazikika kale.

Pakali pano tikukumana ndi kukwera kwa mtengo wachitatu wa feteleza wa mankwala m'zaka 50, chifukwa cha mliri wa COVID-19, China (yogulitsa kunja kwambiri) ikukhazikitsa mitengo yamtengo wapatali, ndipo Russia (m'modzi mwa opanga asanu apamwamba) ikuletsa kutumiza kunja ndikuukira Ukraine.Chiyambireni mliriwu, mitengo ya feteleza yakwera kwambiri ndipo nthawi ina idakwera kanayi mkati mwa zaka ziwiri.Adakali pamiyeso yawo yapamwamba kwambiri kuyambira 2008.