Teaching and Research Station Thyrow: LTE-Field D41 – Static nutrient deficiency experiment

Further information to this location is available in the dataset Teaching and Research Station Standort Thyrow which can be found under https://doi.org/10.20387/bonares-vcth-3a25.
In 1937, the long-term field experiment field D4 was set up originally as a Latin square, with eight different treatments of organic-mineral fertiliser combinations using eight replicates. The goal was to see how nutrient deficiencies affect soil fertility and harvest yields in sandy soils. In 1949, long-term field experiment D4 was split into two subfields: D41 and D42. Due to their different treatments, the datasets for these two subfields are available separately.
D41 has maintained the same treatments since the beginning of the experiment, reducing the number to four replicates in 1949, so that D42 could be given an alternate treatment (further information in the field description for D42 https://doi.org/10.20387/bonares-8bdc-4844).
Since 1957, the crop rotation has been potatoes - spring barley - silage corn – spring barley. In 1959 the accumulation of nematodes led to the decision to include silo corn (previously not farmed) to be included in the crop rotation extending the period between potato seasons to three years. The crop rotation continued afterwards according to the original plan.
The harvest plots in the geodata represent the standard harvest plots for root crops and grains, which have maintained their size since 2000 (excluding in 2018). Before 1998, the sizes of these plots varied over the years. This dataset contains the outline of the trial.

Related datasets are listed in the metadata element 'Related Identifier'.
Dataset version 1.0