Startfosfor till höstvete
There is always an endeavor to govern the initial products in the plant cultivation with precision in order to keep down the expenditure and in order to decrease environmental impact. Initial phosphorus fertilizer can then be one possibility in order to keep down the fertilizer cost and to decrease...
| Autor principal: | |
|---|---|
| Formato: | L3 |
| Lenguaje: | sueco Inglés |
| Publicado: |
SLU/Agrosystems (until 121231)
2008
|
| Materias: |
| _version_ | 1855572128093437952 |
|---|---|
| author | Johnsson, Hans-Olof |
| author_browse | Johnsson, Hans-Olof |
| author_facet | Johnsson, Hans-Olof |
| author_sort | Johnsson, Hans-Olof |
| collection | Epsilon Archive for Student Projects |
| description | There is always an endeavor to govern the initial products in the plant cultivation with precision in order to keep down the expenditure and in order to decrease environmental impact. Initial phosphorus fertilizer can then be one possibility in order to keep down the fertilizer cost and to decrease environmental impact. This exam study includes a literature study about location of fertilizer and which effects this give and two field experiments. The aim with initial phosphorus fertilizer to autumn wheat is to accelerate the root growth and to give the crop a big root system before the growth stagnates before the winter. Easy to access phosphorus favours the root growth. Practically this is done so that the initial phosphorus is intermixed and placed along with the seed in the seed row.
In order to see if this theory agrees in the reality, two field experiments are organized in north-western Skåne. The faster root growth should give wintering advantages. The experiments show that this is not the case. The tendency was a rather opposite effect, depending on which field. A reason why it did not become any significant differences was perhaps the relatively high phosphorus value in the soil. The conditions were not perhaps the best, with surface water on parts of the field.
Initial phosphorus fertilizer for autumn wheat is no solution in order to establish the crop later than what the current cultivation local permits, according the experiments in this study. The weather conditions have a great influence on how much the crop can grow before the winter. |
| format | L3 |
| id | RepoSLU12772 |
| institution | Swedish University of Agricultural Sciences |
| language | swe Inglés |
| publishDate | 2008 |
| publishDateSort | 2008 |
| publisher | SLU/Agrosystems (until 121231) |
| publisherStr | SLU/Agrosystems (until 121231) |
| record_format | eprints |
| spelling | RepoSLU127722017-10-19T07:46:56Z Startfosfor till höstvete Initial phosporus to autumn wheat Johnsson, Hans-Olof höstvete startfosfor There is always an endeavor to govern the initial products in the plant cultivation with precision in order to keep down the expenditure and in order to decrease environmental impact. Initial phosphorus fertilizer can then be one possibility in order to keep down the fertilizer cost and to decrease environmental impact. This exam study includes a literature study about location of fertilizer and which effects this give and two field experiments. The aim with initial phosphorus fertilizer to autumn wheat is to accelerate the root growth and to give the crop a big root system before the growth stagnates before the winter. Easy to access phosphorus favours the root growth. Practically this is done so that the initial phosphorus is intermixed and placed along with the seed in the seed row. In order to see if this theory agrees in the reality, two field experiments are organized in north-western Skåne. The faster root growth should give wintering advantages. The experiments show that this is not the case. The tendency was a rather opposite effect, depending on which field. A reason why it did not become any significant differences was perhaps the relatively high phosphorus value in the soil. The conditions were not perhaps the best, with surface water on parts of the field. Initial phosphorus fertilizer for autumn wheat is no solution in order to establish the crop later than what the current cultivation local permits, according the experiments in this study. The weather conditions have a great influence on how much the crop can grow before the winter. Det finns alltid en strävan att styra insatsvarorna i växtodlingen med precision för att hålla nere utgifterna och för att minska miljöpåverkan. Då kan startfosforgödsling vara en möjlighet för att hålla ner på gödselkostnaden och minska miljöpåverkan. Detta examensarbete innefattar en litteraturstudie om placering av mineralgödsel och vilka effekter detta ger samt två fältförsök. Syftet med startfosforgödsling till höstvete är att påskynda rottillväxten och att ge grödan ett stort rotsystem innan tillväxten avstannar inför vintern. Lättillgängligt fosfor gynnar rottillväxten. Praktiskt går det till så att startfosforn blandas och placeras tillsammans med utsädet i såraden. För att se om denna teori stämmer med verkligheten anordnades två fältförsök i nordvästra Skåne. Den snabbare rottillväxten borde ge övervintringsfördelar. Försöken visar att så inte var fallet. Tendensen var snarare tvärt om, beroende på vilket försöksfält som studerades och vilken statistisk metod som används. En anledning till varför det inte blev någon signifikant skillnad mellan leden kan vara de relativt höga fosforvärdena i jorden. Förutsättningarna var kanske inte de bästa, med ytvatten på delar av det ena försöksfältet. Startfosforgödsling för höstvete är ingen lösning för att kunna etablera grödan senare än vad den aktuella odlingslokalen medger enligt genomförda försök. Väderförutsätt-ningarna spelar stor roll på hur mycket grödan hinner växa innan vintern. SLU/Agrosystems (until 121231) 2008 L3 swe eng https://stud.epsilon.slu.se/12772/ |
| spellingShingle | höstvete startfosfor Johnsson, Hans-Olof Startfosfor till höstvete |
| title | Startfosfor till höstvete |
| title_full | Startfosfor till höstvete |
| title_fullStr | Startfosfor till höstvete |
| title_full_unstemmed | Startfosfor till höstvete |
| title_short | Startfosfor till höstvete |
| title_sort | startfosfor till höstvete |
| topic | höstvete startfosfor |