Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.)
Fertilizer that does not get used in crop growth is a problem for Swedish agriculture since there are risks that nutrients leach into lakes, streams and seas. Short culture time and a nitrogen (N) demanding crop with fast development are factors that give high risk of nitrogen leakage in lettuce...
| Main Author: | |
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| Format: | Otro |
| Language: | Swedish Inglés |
| Published: |
2008
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| Subjects: | |
| Online Access: | https://stud.epsilon.slu.se/12626/ |
| _version_ | 1855572101681905664 |
|---|---|
| author | Ekengard, Klara |
| author_browse | Ekengard, Klara |
| author_facet | Ekengard, Klara |
| author_sort | Ekengard, Klara |
| collection | Epsilon Archive for Student Projects |
| description | Fertilizer that does not get used in crop growth is a problem for Swedish agriculture since
there are risks that nutrients leach into lakes, streams and seas. Short culture time and a
nitrogen (N) demanding crop with fast development are factors that give high risk of nitrogen
leakage in lettuce production. Extensive growth at time for harvest leaves fertilizer nitrogen in
soil that can leach from the field.
Starter fertilizer is a method for precise fertilization. By using this method every plant gets the
exact amount needed and fertilization of soil without roots is minimized. This project aimed
at finding an application method and fertilizer level for N used as starter fertilizer in Swedish
iceberg lettuce production. Earlier studies in the UK show good results for the use of starter
fertilizer in lettuce.
The results from this study showed that a bigger amount of nitrogen tested does not give a
better yield than the lower amount tested. The plants in the trial showed examples of
physiological disorders but such plant damages can be related to climate difficulties rather
than over fertilization. The damages make the results insecure. The recommended application
method from the trial is to put fertilizer in two strains 3 cm beside the plant.
Even if the results from this study are insecure due to plant damages, further research in the
area is recommended since the use of starter fertilizer is a method that can help reducing
nitrogen leakage from Swedish iceberg lettuce production. By using starter fertilizer the
amount of nutrient broadcasted over the field can be limited but yield can be maintained. |
| format | Otro |
| id | RepoSLU12626 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2008 |
| publishDateSort | 2008 |
| record_format | eprints |
| spelling | RepoSLU126262017-10-25T04:01:29Z https://stud.epsilon.slu.se/12626/ Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) Ekengard, Klara Horticulture (until 121231) Fertilizing Fertilizer that does not get used in crop growth is a problem for Swedish agriculture since there are risks that nutrients leach into lakes, streams and seas. Short culture time and a nitrogen (N) demanding crop with fast development are factors that give high risk of nitrogen leakage in lettuce production. Extensive growth at time for harvest leaves fertilizer nitrogen in soil that can leach from the field. Starter fertilizer is a method for precise fertilization. By using this method every plant gets the exact amount needed and fertilization of soil without roots is minimized. This project aimed at finding an application method and fertilizer level for N used as starter fertilizer in Swedish iceberg lettuce production. Earlier studies in the UK show good results for the use of starter fertilizer in lettuce. The results from this study showed that a bigger amount of nitrogen tested does not give a better yield than the lower amount tested. The plants in the trial showed examples of physiological disorders but such plant damages can be related to climate difficulties rather than over fertilization. The damages make the results insecure. The recommended application method from the trial is to put fertilizer in two strains 3 cm beside the plant. Even if the results from this study are insecure due to plant damages, further research in the area is recommended since the use of starter fertilizer is a method that can help reducing nitrogen leakage from Swedish iceberg lettuce production. By using starter fertilizer the amount of nutrient broadcasted over the field can be limited but yield can be maintained. Svenskt jordbruk bidrar till övergödningen av sjöar, åar och hav genom att gödning som inte kommer grödan till del läcker ut från odlade fält. Eftersom isbergssallat är en gröda som kräver mycket näring och eftersom den skördas när den fortfarande är i tillväxt när det finns mycket näringsämnen kvar i jorden så är det stor risk för läckage. Kväve (N) behöver tillföras grödan i stora mängder och kväveläckaget är också stort. Ett sätt att kunna minska läckaget är att tillföra varje planta exakt den mängd kväve som den behöver vid plantering och sedan tillföra en mindre mängd som bredspritt kväve under kulturtiden. Därmed undviks att gödsla den omkringliggande jorden där inga rötter finns. Projektet som beskrivs i denna rapport hade som mål att hitta ett bra sätt för att tillföra gödning i form av NPK som startgiva samt att hitta en lämplig gödslingsnivå. Startgiva är testat med bra resultat i sallatsproduktion i exempelvis Storbritannien. Resultaten från detta försök i klimatkammare med reglerad temperatur, luftfuktighet och ljus visar att den testade högre mängden kväve inte ger bättre skörd än den lägre mängden. Skador på plantorna gör resultaten osäkra, men dessa går till viss del förklara med klimatproblem på grund av klimatkammaren snarare än saltskador. Metoden som rekommenderas för ytterligare studier är att tillföra NPK i två strängar några cm från plantan. Trots de fysiologiska skador som plantorna i denna studie visar tecken på, rekommenderas att fortsätta arbetet med att anpassa en startgiva för svensk isbergssallatsproduktion. Detta är en åtgärd som kan minska det totala användandet av kväve och därmed minska risken för läckage från fält. 2008-07-07 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/12626/1/ekengard_k_171024.pdf Ekengard, Klara, 2008. Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) : application method and fertilizer level. UNSPECIFIED, Alnarp. Alnarp: (NL, NJ) > Horticulture <https://stud.epsilon.slu.se/view/divisions/ANSTI=3A1600.html> urn:nbn:se:slu:epsilon-s-8168 eng |
| spellingShingle | Horticulture (until 121231) Fertilizing Ekengard, Klara Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) |
| title | Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) |
| title_full | Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) |
| title_fullStr | Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) |
| title_full_unstemmed | Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) |
| title_short | Placed nitrogen (N) starter fertilizer for planted iceberg lettuce (Lactuca sativa L.) |
| title_sort | placed nitrogen (n) starter fertilizer for planted iceberg lettuce (lactuca sativa l.) |
| topic | Horticulture (until 121231) Fertilizing |
| url | https://stud.epsilon.slu.se/12626/ https://stud.epsilon.slu.se/12626/ |