Indasitiri yekurima inzvimbo ine hunyanzvi hwesainzi nehunyanzvi hwetekinoroji. Mapurazi emazuva ano nedzimwe nzira dzekurima dzakasiyana zvikuru nedzekare.
Nyanzvi muindasitiri iyi dzinowanzo da kushandisa matekinoroji matsva nekuda kwezvikonzero zvakasiyana-siyana. Tekinoroji inogona kubatsira kuita kuti mashandiro ave anoshanda, zvichibvumira varimi kuita zvakawanda munguva pfupi.
Sezvo huwandu hwevanhu huri kukura, kugadzirwa kwechikafu kuri kuramba kuchiwedzera, zvese izvi zvinoenderana nefetereza yemakemikari.
Chinangwa chikuru ndechekuti varimi vaderedze huwandu hwefetereza yavanoshandisa uku vachiwedzera goho.
Rangarirai kuti mimwe miti inoda fetereza yakawanda, yakaita segorosi.
Fetereza chinhu chipi zvacho chinowedzerwa muvhu kuti chikurudzire kukura kwezvirimwa uye chave chikamu chakakosha chekurima, kunyanya nekukura kwemaindasitiri. Kune mhando dzakawanda dzefetereza, kusanganisira mineral, organic uye mafetereza emaindasitiri. Mazhinji acho ane zvinhu zvitatu zvinokosha: nitrogen, phosphorus uye potassium.
Zvinosuwisa kuti haisi nitrogen yese inosvika pazvirimwa pachayo. Kutaura zvazviri, 50% chete yenitrogen iri mufetereza inoshandiswa nezvirimwa pakurima.
Kurasikirwa nenitrogen idambudziko rezvakatipoteredza sezvo ichipinda mumhepo nemuminda yemvura yakaita semadziva, nzizi, hova nemakungwa. Zvakakoshawo kuziva kuti mukurima kwemazuva ano, fetereza yenitrogen ndiyo inonyanya kushandiswa.
Mamwe mabhakitiriya ari muvhu anogona kushandura nitrogen kuita mamwe magasi ane nitrogen anonzi magasi egreenhouse (GHGs). Kuwedzera kwehuwandu hwemagasi egreenhouse anoburitswa mumhepo kunotungamira mukudziya kwepasi rose uye, pakupedzisira, kuchinja kwemamiriro ekunze. Pamusoro pezvo, nitrous oxide (gasi regreenhouse) rinoshanda zvakanyanya kupfuura carbon dioxide.
Zvinhu izvi zvose zvinogona kukanganisa nharaunda. Fetereza ine nitrogen inocheka nemativi maviri: inokosha pakukura kwezvirimwa, asi nitrogen yakawandisa inogona kuburitswa mumhepo yokonzera migumisiro yakaipa pahupenyu hwevanhu nemhuka.
Sezvo vatengi vakawanda vachitanga mararamiro ekuchengetedza nharaunda, makambani ese ari kutsvaga kushandisa nzira dzinochengetedza nharaunda kuti dzive nemhedzisiro yakanaka.
Varimi vachakwanisa kuderedza huwandu hwemafetiraiza emakemikari anoshandiswa mukurima zvirimwa pasina kukanganisa goho.
Varimi vanogona kugadzirisa nzira dzavo dzekuisa manyowa zvichienderana nezvinodiwa nezvirimwa zvavo uye mhedzisiro yavanoda kuwana.
Nguva yekutumira: Zvita-28-2023