Yield development and nutrient offtake in contrasting Miscanthus genotypes under green and brown harvest regimes

Harvest time is an important variable that determines the yield of miscanthus biomass, its possible end uses, and the nutrient offtake from the field. Green harvests result in a higher yield and greater nutrient removal from the field. Brown miscanthus harvests, carried out in late winter or early spring, result in lower yields, and a lower nutrient offtake, whereby the harvested biomass is better suited to use in combustion. To look at the long term impact of green harvests on miscanthus this experiment followed the yield development of two miscanthus genotypes subjected to green and brown harvests over a period of seven years at one site in Southern Germany. The standard commercial genotype Miscanthus x giganteus (Mxg) was compared to a novel late-ripening Miscanthus sinensis genotype: Syn55.  Average yields of Mxg were 19.9 t ha-1 for green harvests and 13.2 t ha-1 for brown harvests compared to 13.9 t ha-1 and 12.9 t ha-1 for green and brown harvested Syn55 respectively. Yields of M..., Harvest data was collected by harvesting miscanthus plants by hand and with a field harvester. Samples were taken and dried in a drying cupboard to a constant weight. The mineral content of miscanthus biomass was determined in the lab following methods laid out by VDLUFA. Mineral content data was combined with harvest data to calculate mineral offtake in the biomass. Temperature data was collected from weather stations located at Unterer Lindenhof, operated by the Agricultural Technology Centre (LTZ Augustenberg).Temperature data were also collected by soil sensors from the company TOMST set up in individual experimental plots.The McVicker equation was used to calculate degree days in the field., , # Yield development and nutrient offtake in contrasting Miscanthus genotypes under green and brown harvest regimes

 The following data has been uploaded:

Summarised Yield and Offtake Data- this data set contains yield data, mineral content data, and mineral offtake data from 2016-2022.
FM yield and DM yield are in tonnes per hectare. N,P,K,Ca and Mg content are in mg per gram. N,P,K,Ca,Mg offtake are in kg per hectare.

Weather data Unterer Linenhof- this contains weather data from 2016-2023 at the experimental site.

Soil sensor data- This data set contains data collected from soil sensors.
Soil temperature is at -6cm beneath the soil surface and air temperature is +15cm above the soil surface.
Plots 91 and 94 are in brown harvested plots
Plots 92 and 93 are in green harvested plots.

Serial cut data contains mineral content data and the fresh and dry weight of serial cuts.
weight is in grams. SW is the sum of leaf and stem mass for one plot. Mineral content is in mg per gram

Soil A...