Mai sarrafawa na fitarwa
 Mai sarrafawa na fitarwa | |
|---|---|
| Bayanai | |
| Ƙaramin ɓangare na |
fertilizer (en)  |
Abinci mai sarrafawa (CRF) wani taki ne wanda ke fitar da abubuwan gina jiki a hankali a cikin ƙasa (watau, tare da lokacin da aka sarrafa). [1] An kuma san saki mai sarrafawa a matsayin taki mai sarrafa kansa, taki mai jinkirin saki, taki mai saurin saki, ko taki mai saukin aiki. Yawancin lokaci CRF yana nufin taki na nitrogen. Sannu-sannu da sarrafawa-sannu sun haɗa da kawai 0.15% (562,000 ton) na kasuwar taki (1995).
Tarihi
[gyara sashe | gyara masomin]An fara samar da fasahar fitar da nitrogen mai sarrafawa wanda ya dogara da polymers da aka samo daga hada urea da formaldehyde a cikin 1936 kuma an sayar da su a cikin 1955.[2] Samfurin farko yana da kashi 60 cikin 100 na jimlar nitrogen mai sanyi wanda ba a narke shi ba, kuma wanda ba a amsa shi ba (saurin saki) ƙasa da 15%. Methylene ureas, misali methylene diurea, an sayar da su a cikin shekarun 1960 da 1970, suna da kashi 25% da 60% na nitrogen a matsayin ruwan sanyi wanda ba a narkewa ba, da kuma nitrogen na urea wanda ba a amsa ba a cikin kewayon 15% zuwa 30%.
Manazarta
[gyara sashe | gyara masomin]- ↑ (L. W. ed.). Invalid
|url-access=Angers(help); Missing or empty|title=(help) - ↑ J. B. Sartain, University of Florida (2011). "Food for turf: Slow-release nitrogen". Grounds Maintenance. Archived from the original on 2019-10-29. Retrieved 2020-12-29.