Ibhulogi

Kodwa abathengi baya bahlola amafuthalaziyi ase-NPK ukuthi bavume, kubalulekile ukuzibona lezi ziqiniso: i-NPK noma ubukhulu bezinkulungwane, okusho ukuthi izilinganiso zemithambo yezinkulungwane, iphosphorus ne-potassium emakhelweni.

Isingeniso

Izinombolo ezikwi-NPK fertilizers zibiza ukuthi kufuneka kubhekwe ngaphansi kokuphakanyiswa kwenzinkulungwane zokuphakanyiswa. Isibonelo, amafuthalaziyi angu-10-20-10 ayinika imithambo yezinkulungwane engu-10%, iphosphorus engu-20% ne-potassium engu-10%.

Mayelana Nathi

Kodwa umthengi ufuna ukuthenga amafuthalaziyi ase-NPK ukuthi azwele, kufanele uqaphele umphrojese wemihlahla ubukhulu bemakhelwana nezinhlobo zezinkulungwane. Amaphuthalaziyi ase-NPK avela kwezinkulungwane eziyisibili—imithambo yezinkulungwane (N), iphosphorus (P), ne-potassium (K).

Amahlelo

Kodwa ukwazi ukuthi ubukhulu nobuhle bezinhlobo zezinkulungwane bubi, kungekho kufanele ukubheka njengoba amafuthalaziyi ase-NPK ahlukahluka ngokubuhle. Lokhu bifen insecticide kungahle kube nzima ngoba akukho zonke izibhizinisi zihlukahluka. Enye yezindlela eziphelele ekubhekweni kwezifundo zokulinganisa amafuthalaziyi ase-NPK kukusoma izifundo zaba-farmers nabathengi.

Isiphetho

Ekugcineni, khokhola ngokuthenga amafuthalazi ase-NPK okungathi azenziwe ngamazinyo futhi abe nemithandazo yomhlaba ukusebenzisa ukulima okunemithandazo yomhlaba. Umfuziswana ngomfuziswana, usebenzisa izindlela nezindlela zokusebenza eziphathelene ngezinsuku zokubona ukuthi kungafanele sisebenzise izinkemikheli, abaningi abafuziswana bakhokhola ngendlela yokuthuthukisa umhlaba ngaphandle kokulima izincili ezinengqondo. i-Atrazine ehlobene izindlela nezindlela zokusebenza eziphathelene ngezinsuku zokubona ukuthi kungafanele sisebenzise izinkemikheli, abaningi abafuziswana bakhokhola ngendlela yokuthuthukisa umhlaba ngaphandle kokulima izincili ezinengqondo.