Ammonium Nitrogen Fertilizers
Ammonium nitrogen chiv muaj xws li ammonium bicarbonate (NH4HCO3), ammonium sulfate {(NH4) 2SO4}, ammonium chloride (NH4Cl), ammonia dej (NH3·H2O), kua ammonia (NH3), thiab lwm yam.
Dab tsi ntawm nitrogen chiv muaj, thiab lawv siv li cas?
Cov yam ntxwv ntawm ammonium nitrogen chiv:
1. Ammonium nitrogen chiv tau yooj yim adsorbed los ntawm cov av colloids, thiab qee qhov nkag mus rau hauv av nplaum pob zeb siv lead ua txheej.
2. Ammonium nitrogen yog yooj yim oxidized rau nitrates.
3. Ammonia yog yooj yim ploj los ntawm volatilization nyob rau hauv alkaline ib puag ncig.
4. Cov ntsiab lus siab ntawm ammonium nitrogen tuaj yeem ua rau muaj tshuaj lom rau cov qoob loo.
5. Kev nqus ntau dhau ntawm ammonium nitrogen los ntawm cov qoob loo muaj qee yam cuam tshuam rau kev nqus ntawm calcium, magnesium, thiab potassium.
Nitrogen Fertilizers
Nitrogen chiv muaj xws li sodium nitrate (NaNO3), calcium nitrate {Ca(NO3)2}, ammonium nitrate (NH4NO3), thiab lwm yam.
1. Lawv tau yooj yim soluble hauv dej thiab txav mus sai sai hauv cov av.
2. Lawv feem ntau absorbed los ntawm NO3-, thaum cov qoob loo yooj yim nqus nitrates.
3. Nitrate chiv tsis cuam tshuam qhov nqus ntawm cov as-ham xws li calcium, magnesium, thiab potassium los ntawm cov qoob loo.
4. Nitrates yog cov tsis zoo them anions thiab tsis tuaj yeem adsorbed los ntawm cov av colloids.
5. Nitrates tau yooj yim txo mus rau lub xeev gaseous (NO, N2O, N2) los ntawm denitrification thiab khiav tawm ntawm cov av.
