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Collection: 1477 Flakaliden Serial branch samples 1991

Details

Sample type

Leaves/Needles

Sampled

Between 1991 and 1992

Available

Yes

Description

Remains of ground and unground spruce needles and shoot axles taken at fourteen occasions (T1-T14) in the nutrient optimisation experiment 1477 Flakaliden in year 1991-1992. T stands for occasion/tillfälle in Swedish. The samples consist of needles and branch axles from branch whorl 4 and are pooled per treatment and age class. A key list of sample numbers is available for download.

Background information

The sampling includes three treatments: control (C), solid fertilisation (F) and irrigation with liquid fertiliser (IL). Ten trees per treatment were sampled, a total of 30 trees at each occasion. Whole spruce branches were sampled. One branch were taken on each tree, a total of 30 branches at each occasion. Branches were processed at Jädraås Experimental Forest, where they were separated in age classes for both needles and branch axles, dried at 85° in 48 h and weighed separately for each age class. Sampling dates: T1: 1991-04-02 sample no. Fla 940-948 T2: 1991-04-22 sample no. Fla 949-957 T3: 1991-06-05 sample no. Fla 958-963 T4: 1991-05-21 sample no. Fla 964-969 T5: 1991-06-03 sample no. Fla 970-975 T6: 1991-06-26 sample no. Fla 976-984 T7: 1991-07-17 sample no. Fla 985-993 T8: 1991-08-19 sample no. Fla 994-1002 T9: 1991-10-07 sample no. Fla 1003-1011 T10: 1991-11-04 sample no. Fla 1012-1020 T11: 1991-12-17 sample no. Fla 1090-1098 T12: 1992-01-20 sample no. Fla 1099-1107 T13: 1992-02-17 sample no. Fla 1108-1116 T14: 1992-03-30 sample no. Fla 1117-1125

Associated trials

Events

  • Analysis 1991: Carbohydrate analysis of needle samples occasion T1-T10. Analyst Anita Flower-Ellis.
  • Analysis 1992: Nutrient analysis.
  • Miscellaneous 2004: These samples were first stored at The Department of Forest Production Ecology, SLU Uppsala. In 2004 the samples were sent to SilvaBoreal-Archive for longtime storage.
  • Miscellaneous 2022: Ground needle samples (T9) no. 1006 (C), no. 1007(F) and no. 1008 (IL) are stored in a special batch series that includes C+1 needle samples from 1987 to 2020.

Location and ownership

Organisation

SLU - ESF - Vindelns försöksparker

Location

Östvallen → Attic (Not temperature regulated)

Contact

Ulla Nylander
ulla.nylander@slu.se