(1) nayitrogeni: nayitrogeni mchere zinthu monga chigawo chachikulu cha fetereza, kuphatikizapo ammonium bicarbonate, urea, ammonium pini, ammonia, ammonium kolorayidi, ammonium sulfate, etc.
(2) p: P michere zinthu monga chigawo chachikulu cha fetereza, kuphatikizapo wamba superphosphate, calcium magnesium mankwala fetereza, etc.
(3) k: potaziyamu zakudya zinthu monga chigawo chachikulu cha feteleza, ntchito si kwambiri, mitundu waukulu ndi potaziyamu kolorayidi, potaziyamu sulphate, potaziyamu nitrate, etc.
(4) pawiri ndi feteleza wosanganiza, fetereza ali awiri mwa zinthu zitatu za fetereza (nayitrogeni, phosphorous ndi potaziyamu) bayinare pawiri ndi feteleza wosakaniza ndi munali nayitrogeni, phosphorous ndi potaziyamu zinthu zitatu za pawiri ternary ndi fetereza wosanganiza.Kulimbikitsa feteleza wosakanizidwa mwachangu mdziko lonse.
(5) zinthu zina mu trace element fetereza ndi fetereza, monga kale muli boron, nthaka, chitsulo, molybdenum, manganese, mkuwa ndi kufufuza zinthu feteleza, otsiriza monga calcium, magnesium, feteleza sulfure.
Nthawi yotumiza: Mar-25-2022