Written by cpm from CPM Magazine
Download PDF Using acidification to adjust the pH of organic fertilisers could be the answer to greater efficiencies and increasing the amount of nitrogen available to crops. CPM attended a Vogelsang webinar in January to find out more. For different slurries you need different amounts of acid to bring the pH value down. By Melanie Jenkins Inorganic fertiliser prices are putting a painful squeeze on margins, with many growers looking to optimise their use of organic fertilisers, but a significant amount of nitrogen is often lost before crops have the opportunity to take it up. Step up Vogelsang’s latest launch, SyreN. Slurry, be it digestate, cow or pig manure, contains nitrogen in two forms, liquid ammonium (NH4+) and gaseous ammonia (NH3–), existing in a chemical equilibrium of roughly 60:40, explains Vogelsang’s Hubert Schmidt, during Vogelsang’s SyreN launch webinar in January. “Unfortunately, that level is relatively fixed and the gaseous portion will evaporate.” Ammonia will evaporate at any point that slurry or digestate is exposed to air, meaning nitrogen can be lost during storage as well as after spreading. But Hubert stresses the largest amount is lost in the first 24 hours after it has been spread. And as the ammonia…
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Download PDF Using acidification to adjust the pH of organic fertilisers could be the answer to greater efficiencies and increasing the amount of nitrogen available to crops. CPM attended a Vogelsang webinar in January to find out more. For different slurries you need different amounts of acid to bring the pH value down. By Melanie Jenkins Inorganic fertiliser prices are putting a painful squeeze on margins, with many growers looking to optimise their use of organic fertilisers, but a significant amount of nitrogen is often lost before crops have the opportunity to take it up. Step up Vogelsang’s latest launch, SyreN. Slurry, be it digestate, cow or pig manure, contains nitrogen in two forms, liquid ammonium (NH4+) and gaseous ammonia (NH3–), existing in a chemical equilibrium of roughly 60:40, explains Vogelsang’s Hubert Schmidt, during Vogelsang’s SyreN launch webinar in January. “Unfortunately, that level is relatively fixed and the gaseous portion will evaporate.” Ammonia will evaporate at any point that slurry or digestate is exposed to air, meaning nitrogen can be lost during storage as well as after spreading. But Hubert stresses the largest amount is lost in the first 24 hours after it has been spread. And as the ammonia…
The post Liquid manures – Efficient organic nitrogen appeared first on cpm magazine.
Continue reading on CPM website...
If you are enjoying what you read then why not considering subscribing here: http://www.cpm-magazine.co.uk/subscribe/