Mineraalse lägalisandi NovaOptimizeri mõju veiseläga kvaliteedile
Laen...
Kuupäev
2020
Kättesaadav alates
28.08.2020
Autorid
Aavik, Kusti
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Orienteeruvalt 90% kogu ammoniaagi emissioonist Euroopas pärineb põllumajandusest.
Tegu on probleemiga, kuna lämmastiku lendumise tulemusena tekitad anorgaanilised
osakesed, mis on kahjulikud inimeste tervisele. Uurimistöö eesmärgiks oli uurida
lägalisandi NovaOptimizeri mõju veiseläga kvaliteedile. Uurimustöö jaoks võeti 5
erinevat katsetünni veiselägaga millest igaüks sai erineva sisu, vastavalt kontroll, lägakivi
Gülle-Bombe ning erinevate normidega lägalisand NovaOptimizer. Pärast tünnikatse
lõppu uuriti läga mõju kultuurrohumaa põldkatsel. Tulemustest selgus, et NovaOptimizer
omab normipiires kasutamisel 100% mõju ammoniaagi emissiooni vähenemisele. Veidi
vähemal määral aga siiski oli täiesti toimiv ka poole normiga kasutus, mille puhul esines
võrreldes kontrollivariandiga kerge emissioon. Vastupidine efekt tekkis NovaOptimizeri
250 kordse normiga kasutuse puhul, kus ammoniaagi eritumine hoopis suurenes,
võrreldes kontrolliga tervelt 2,5 korda. Rohumaa põldkatsel suuri saagivahesid lisandite
kasutamise vahel ei esinenud. Põuase aasta tõttu ei õnnestunud rohumaal läbiviidud katse
loodetud määral. Edaspidi tuleks uurida lägalisandite kasutuse majandusliku poolt.
In Europe almost 90% of ammonia (NH3) is emitted by agriculture. It is a problem, because ammonia pollution causes formation of inorganic particulate matter, that are dangerous for human health. The aim of this study was to examine slurry additive NovaOptimizer influence on dairy cow slurry. Five 1m3 containers were used with different substances. Firstly control, with no additives, then slurry stone Gülle-Bombe and three different rate of NovaOptimizer. As a result, it worked out that, NovaOptimizer has 100% efficiency on reducing ammonia emission. Not as much, but still worked 0,5x NovaOptimizer, small amount of emission was registered, but it was slower than control one. Totally different was effect of 250 times norm usage, that case emitting increased more than 2,5 times, compared to 1x norm. Field trial did not show up any big differences in dry matter yield. Because of arid summer, trial did not work out as much as was planned. In the future the economical aspect of using slurry additives should be examined
In Europe almost 90% of ammonia (NH3) is emitted by agriculture. It is a problem, because ammonia pollution causes formation of inorganic particulate matter, that are dangerous for human health. The aim of this study was to examine slurry additive NovaOptimizer influence on dairy cow slurry. Five 1m3 containers were used with different substances. Firstly control, with no additives, then slurry stone Gülle-Bombe and three different rate of NovaOptimizer. As a result, it worked out that, NovaOptimizer has 100% efficiency on reducing ammonia emission. Not as much, but still worked 0,5x NovaOptimizer, small amount of emission was registered, but it was slower than control one. Totally different was effect of 250 times norm usage, that case emitting increased more than 2,5 times, compared to 1x norm. Field trial did not show up any big differences in dry matter yield. Because of arid summer, trial did not work out as much as was planned. In the future the economical aspect of using slurry additives should be examined
Kirjeldus
Bakalaureusetöö
Põllumajandussaaduste tootmise ja turustamise õppekaval
Märksõnad
bakalaureusetööd, lägalisandid, veiseläga, kultuurrohumaad, ammoniaak, lämmastik, Roheline Ülikool (töö toetab EMÜ Rohelise Ülikooli põhimõtteid), loodusvarad, veevarud, loodusvarade kaitse, jätkusuutlikkus, säästev areng