Nitrogen fertilizer n30

(1) Folor Nitrogen Fertilizer, uas tuaj yeem muab cov khoom noj nitrogen thaum thov rau cov av. Nitrogen fertilizer yog qhov loj tshaj plaws fertilizer nyob hauv lub ntiaj teb.

(2) Tus nqi tsim nyog ntawm nitrogen fertilitilizer ua lub luag haujlwm tseem ceeb hauv kev nce qoob loo tawm los thiab txhim kho qhov zoo ntawm cov khoom lag luam ua liaj ua teb.

(3) nitrogen fertilizer tuaj yeem muab faib ua ammonia nitrogen chiv, nitrogen chiv, ammonium nitrogen chiv raws li nitrogen muaj nitrogen muaj pab pawg.