Lokudla lokukhona nyalo mhlabawonkhe kanye netinkinga temali setikhombise kungakhoni kwenta lutfo kwemakhemikhali esimanje ekulima ngekwenta indlala ibe yimbi nenhlupheko. Letindzawo temakhemikhali tesimanje tekulima tingetela ekukhuliseni simo semhlaba Kanye nekuphazamisa kwenombolo yetintfo letitinhlobo letehlukene letiphilako kanye netintfo tendalo letifana nemanti kanye nesihlabatsi. Kungetelela lapho, lenandlela yekulungiselela kukhula kwenhlanyelo yinye kulendzawo (kulima inhlanyelo yinye) phindze kuphumele ekuphazamiseni kwetindlela tesintfu noma temvelo tekulima.
Kunyakata lokungavumi kuyakhula emhlabeni - 'budlelwane emkhatsini wetintfo letiphilako nalokunye lokukito ngekulima' iyacelwa futsi iyafakwa njengandlela tsite ekusetjentisweni tindlela temakhemikhali. Umphumela kukukhulisa balimi kutsi baphatse tintfo tabo tendalo Kanye nekunaka indzawo ngendlela lemile.
Kulima ngekwendalo ku, nomakunjalo, kutsetse indlela lekhonalapho ngemali yekuhlanyela kwetintfo nguyona ndlela lecatjangwako. Lena ndlela yekulima "lokukhokhwa yindalo" kuhamba ngendlela yesimanje yekulima lapho khona lokutfoliwe ngukona kuyintfo sibili. Kulima lokukhicitwa yindalo lokute emakhemikhali eNingizimu Afrika kugcwele kuhlangahlangana. Yinye yaletintfo sititfiketi sekulima lokute emakhemikhali ngiko lokuhlangahlanganisa tindlela te budlelwane emkhatsini wetintfo letiphilako kantsi, etintfweni letiningi, kudule kakhulu kubalimi labancane besikali-lesincane.
Ematiko eNingizimu Afrika, eIndia nase Brazil buka tindlela letinye letifana ne Ndlela Yekwenta Letsembisako (PGS) lapho khona balimi lucobo lwabo batsembisa kulima-ngebudlelwane noma indalo yetintfo letikhicitiwe. Lena ndlela isusa incenye yesitsatfu ledulile futsi ibeka balimi emkhatsini wesitifiketi noma indlela yesikhatsi. iPSG itsatfwa njengendlela yencenye yesitsatfuu lencono mhlabawonkhe futsi ilungele sikali lesincane sekukhicita.
Kulima tintfo letingadzingi emakhemikhali nguyona ndlela yetitjalo kanye netilwane lepholile lenemvelo ngaphandle kewekusebentisa emakhemikhali lalimatako kanye nekusebentisa tintfo letifana nalokusaphilisi lokukhulako, kuvikela umuhlwa kanye nekuphucula umhlabatsi. Umphumela kutsi lokukhicitiwe lokute emakhemikhali kanye nentfo leyenta kukhula kanye nemavithamini lasetulu latfwele tintfo letihlanganisiwe - loku titjalo, tilwane noma tintfo letincane letibanga emagciwane letitfwala ingati letincishisiwe noma lefakwe kusuka kuletinye tintfo noma emacembu etilwane/titjalo.
Translated by Phindile Malotana