Načini trajnostnega upravljanja s fosforjem v tleh

diplomsko delo

Barbara Fojkar (Author), Marko Zupan (Reviewer), Helena Grčman (Mentor)

Abstract

Fosfor v naravi predstavlja eno izmed najpomembnejših hranil za rastline. V naravi se fosfor v tleh nahaja v majhnih koncentracijah, zato gojenje rastlin in pridelava hrane ne moreta doseči optimalnega pridelka. V ta namen fosfor v tla vnašamo s pomočjo gnojil, ki so lahko v organski ali anorganski obliki. Fosfor se zaradi svoje močne vezave v tleh kopiči, zato imajo mnoga gnojena tla zalogo tega hranila. Kadar se delci tal z erozijo odnašajo v vodne sisteme, fosfor povzroča hude okoljske probleme. Prav tako je okolju škodljivo izkopavanje fosfatne rude, ki je surovina za fosfatna gnojila. Znanstveniki navajajo različne napovedi o vrhuncu izkopavanja fosfatne rude (ang. peak phosphorus), ki napoveduje čas, ko bo komercialno razpoložljivega in cenovno ugodnega fosforja začelo primanjkovati. V prihodnosti bo treba zaključiti fosforjev cikel, da ne bo prihajalo do nepotrebnih izgub tega hranila. Na srečo obstaja že veliko raziskanih metod o tem, kako s fosforjem upravljati bolj trajnostno in okolju prijazno.

Keywords

fosfor;kmetijstvo;fosfatna kamnina;cenovna nihanja;rastline;tla;obnova fosforja;evtrofikacija;onesnaženje;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[B. Fojkar]
UDC:	631.416.2:661.152.3'1'2:631.811.2(043.2)
COBISS:	74481155
Views:	289
Downloads:	44
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Methods of sustainable soil phosphorus managment [i. e. management]
Secondary abstract:	Phosphorus is one of the most important nutrients for plants. In nature, phosphorus is found in low concentrations in the soil, so plant breeding and food production cannot achieve an optimal yield. For this purpose, phosphorus is introduced into the soil with the help of fertilizers, which can be in organic or inorganic forms. Phosphorus accumulates in the soil due to its strong binding, so many fertilized soils have a supply of this nutrient. When soil particles are carried away by erosion into water systems, phosphorus causes severe environmental problems. Excavation of phosphate ore, which is an integral part of phosphate fertilizers, is also harmful to the environment. Scientists cite various predictions about peak phosphorus, which will be the time when commercially available and affordable phosphorus will begin to be in short supply. In the future, it will be necessary to complete the phosphorus cycle to avoid unnecessary losses of this nutrient. Fortunately, there are already many researched methods on how to manage phosphorus in a more sustainable and environmentally friendly way.
Secondary keywords:	phosphorus;agriculture;phosphate rock;price fluctuations;plants;soil;phosphorus recovery;eutrophication;pollution;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages:	VI, 20 str.
ID:	13303751