Table V402_CROP_BIOMASS_NITROGEN:

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2015; 2016; 2017	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2015 until 2017	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment in a special year; in 2015 Field_No =932; 2016 Field_No = 936; 2017 Field_No =938	-	-	-
PLOT_NO	-	number of single plot (without special discription)	-	-	-
IRRIGATION	-	rainfed, irrigation: Irrigation treatment plant species according model BEREST 90/IRRIGAMA	-	-	-
REP	-	contraction replication number of the same treatment	-	-	-
PLANT_SPECIES	-	plant species: soybean; lupine (followed by turnip rape ); buckweat	-	-	-
CULTIVAR_NAME	-	name of cultivar and cultivar with special treatments (only cv. Sultana)	-	-	-
PLANTS_QM	-	number of plants (pieces) per 2 square meters per plot	-	manual counted 2* 2 running metres	-
HARV_TYPE	-	type of harvest; final harvest of grain ore intermediate harvest of green plant	-	-	-
HARV_ME	-	methode of harvest (by machine or hand)	-	-	-
DATE	-	date of sampling	-	-	-
PLANT_MAT	-	type of plant material; grain or green plant	-	-	-
HARV_AREA	m2	size of harvest area, depends on harvest type	-	-	-
FRESH_MASS_KG_HARV_AREA	kg area-1	amount of fresh matter per harvested area (harvested by machine or hand)	-	-	-
DRY_MA_CONT	%	content of dry matter in sample at harvest	drying oven	drying time for grain: 4h at 130°C; drying time for green mass: 48h at 60°C	-
CLEANN	%	cleanliness =100 %-pollution (pollution by weed; stems…)	-	calculation (​determination of dirt within a sample and extraction; comparison of sample weight before and after the dirt extraction)	-
YIELD_DM	t h-1	yield dry mass; grain or green plant; 2017 buckweat no grain yields	-	calculated with 100 % dry matter	-
N_T_CONT	%	content of total nitrogen in dry plant material	photometer Gallery Plus TM (ThermoFischer Scientific GmbH)	after Kjeldahl	DIN EN 25663
P_CONT	%	content of total phosphor in dry plant material	spectrometer; random access analyzer Gallery Plus TM (ThermoFischer Scientific GmbH)	Focal length, photomentric, F-AES, F-AAS	DIN EN 25663
K_CONT	%	content of total potassium in dry plant material	spectrometer; random access analyzer AAS-iCE 3300 Gallery TM (ThermoFischer Scientific GmbH)	Focal length, photomentric, F-AES, F-AAS	DIN EN 25663
YIELD_N	kg ha-1	nitrogen yield	calculation	calculated from N-content (%) and yield dry mass	-
CRUDEPRO_CONT	%	content of crude protein	-	calculation (Product of N content *6,25)	-
YIELD_CRUDEPRO	kg ha-1	yield of crude protein	calculated from crude protein-content (%) and yield dry mass	calculation	-
YIELD_P	kg ha-1	phosphorus yield	calculated from P-content (%) and yield dry mass	calculation	-
YIELD_K	kg ha-1	potassium yield	calculated from K-content (%) and yield dry mass	calculation	-
TGW	g	thousand grain mass	counting machine Contador E (Pfeuffer)	4 times 100 grains are counted; thousand grain mass extrapolated after that	-
ADDITIONAL_INFO	-	remarks to sampling	-	-	-

Table V402_CROP_ONTOGENESIS:

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2015; 2016; 2017	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2015 until 2017	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment in a special year; in 2015 Field_No =932; 2016 Field_No = 936; 2017 Field_No =938	-	-	-
IRRIGATION	-	rainfed, irrigation: Irrigation treatment plant species according model BEREST 90/IRRIGAMA	-	-	-
PLANT_SPECIES	-	plant species: soybean; lupine (followed by turnip rape ); buckweat	-	-	-
CULTIVAR_NAME	-	name of cultivar (soybean: Protibus, Sultana, Merlin and cultivar with special treatments (only cv. Sultana); Lupine cv. Probor only, buckwheat Fagopyrum tataricum only	-	-	-
SOWING_DATE	yyyy-mm-dd	date of sowing soybean; lupine; buckweat; turnip rape	-	-	-
EMERGENCE_DATE	yyyy-mm-dd	emergence of plants	-	optical assessment	-
BEG_FLOWERING	yyyy-mm-dd	Beginn of flowering of plants BBCH 61	-	see above	see above
FIRST_PODS	yyyy-mm-dd	beginning pod development, BBCH 71	-	see above	see above
BEG_SEED	yyyy-mm-dd	70 % of pods have reached final size, BBCH 77	-	see above	see above
BEG_MATURITY	yyyy-mm-dd	50 to 80 % pods are mature, BBCH 82-88	-	see above	see above
MATURITY	yyyy-mm-dd	95 % of the pods ar mature, BBCH 89	-	see above	see above
ADDITIONAL_INFO	-	remarks	-	-	-

Table V402_MANAGEMENT:

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2015; 2016; 2017	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2015 until 2017	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment in a special year; in 2015 Field_No =932; 2016 Field_No = 936; 2017 Field_No =938	-	-	-
PLANT_SPECIES	-	plant species: soybean; lupine (followed by turnip rape ); buckweat	-	-	-
CULTIVAR_NAME	-	cultivar-name (combined with special treatments of soybean cv. Sultana only) of soybean and lupine, buckwheat without cultivar_name	-	-	-
PRECROP	-	previous crop before starting experiment	-	-	-
TILLAGE_BY	-	Tillage by plough, cultivator …	-	-	-
TILLAGE_DEPTH_CM	cm	tillage depth	-	-	-
TILLAGE_DATE	yyyy-mm-dd	tillage date in trial year	-	-	-
SOWING_DATE	yyyy-mm-dd	sowing date of soybean, buckweat, lupine	-	-	-
ROW_DISTANCE	cm	row distance of soybean, buckweat, lupine, turnip rape	-	-	-
GERMINABLE_SEED_GRAINS_QM	germinable kernels/m2	seed density	-	-	-
EMERGENCE_DATE	yyyy-mm-dd	emergence of plants	-	optical assessment	-
APPL_INSEK_DATE	yyyy-mm-dd	application insecticide	-	-	-
INSEK_TYPE	-	type of insecticide	-	-	-
INSEK_AMOUNT	l/ha	amout of insecticide	-	-	-
HARVEST_DATE	yyyy-mm-dd	harvest date	-	-	-
HARVEST_ME	-	methode of harvest (by machine or hand)	-	-	-
IRRIGATION_AMOUNT_MM	mm	amount of irrigagtion according model BEREST 90/IRRIGAMA; 2017 no irrigation because moist year	-	-	-
IRRIGATION_APPLICATION_DATE	yyyy-mm-dd	date of irrigation	-	-	-
ADDITIONAL_INFO		remarks	-	-	-

Table V402_SOIL_TEXTURE and V410_SOIL_TEXTURE

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2015; 2016; 2017 resp. 2016; 2017; 2018	-	-	-
EXP_NO	-	experiment number determined for that special experiment	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment	-	-	-
HORIZON	-	name of horizon of special soil profile (digging 1982)	literature	-	TGL 24300 (1985): Aufnahme landwirtschaftlich genutzter Standorte.- In: Fachbereichsstandards, Akademie der Landwirtschaftswissenschaften der DDR, Berlin
DEPTH_CM	cm	depth of horizon, in cm, from to (e.g. 0-20 cm)	-	-	-
CLAY_PERC	%	percentage of clay	-		see TGL 24300 standard above
SILT_PERC	%	percentage of silt	-		see TGL 24300 standard above
SAND_PERC	%	percentage of sand	-		see TGL 24300 standard above
TOTAL_CARBON_PERC	%	total carbon	-		see TGL 24300 standard above
TOTAL_NITROGEN_PERC	%	total nitrogen	-		see TGL 24300 standard above
C_N	-	ratio of carbon and nitrogen	-	calculation	-
PH_KCL	-	pH level	-	-	TGL 25418/06 (1975): Chemische Bodenuntersuchung.- In: Fachbereichsstandards, Akademie der Landwirtschaftswissenschaften der DDR, Berlin
ADDITIONAL_INFO	-	remarks	-	-	-

Table V410_CROP_BIOMASS_NITROGEN:

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2016; 2017; 2018	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2016 until 2018	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment in a special year; in 2016 Field_No =932; 2017 Field_No = 936; 2018 Field_No =938	-	-	-
PLOT_NO	-	number of single plot (without special discription)	-	-	-
IRRI_PRECROP	-	irrigation treatment precrop	-	-	-
REP	-	contraction replication number of the same treatment	-	-	-
PRECROP_PLANT_SPECIES	-	precrops: soybean (cv) Sultana ; Lupinus luteus (cv) Probor (after harvest lupin seeding of turnip rape; Brassica rapa var. Rapa ( cv Buko)); buckwheat (Fagopyrum tataricum)	-	-	-
PLANTS_QM	-	number of oatsplants after emergence	-	manual counted 2* 2 running metres	-
HARV_TYPE	-	type of harvest; intermediate harvest; final harvest	-	-	-
HARV_ME	-	methode of harvest (by machine or hand)	-	-	-
DATE	-	date of sampling	-	-	-
PLANT_MAT	-	type of plant material; grain or green plant	-	-	-
HARV_AREA	m2	size of harvest area, depends on harvest type	-	-	-
EARS_QM	m2	number of ears before harvest	-	manual counted 2* 2 running metres	-
FRESH_MASS_KG_HARV_AREA	kg area-1	amount of fresh matter per harvested area (harvested by machine or hand)	-	-	-
DRY_MA_CONT	%	content of dry matter in sample at harvest	drying oven	drying time for grain: 4h at 130°C	-
CLEANN	%	cleanliness =100 %-pollution (pollution by weed; stems…)	-	calculation (​determination of dirt within a sample and extraction; comparison of sample weight before and after the dirt extraction)	-
YIELD_DM	t h-1	yield dry matter	-	calculated with 100 % dry matter	-
N_T_CONT	%	content of total nitrogen in dry plant material	photometer Gallery Plus TM (ThermoFischer Scientific GmbH)	after Kjeldahl	DIN EN 25663
P_CONT	%	content of total phosphor in dry plant material	spectrometer; random access analyzer Gallery Plus TM (ThermoFischer Scientific GmbH)	Focal length, photomentric, F-AES, F-AAS	DIN EN 25663
K_CONT	%	content of total potassium in dry plant material	spectrometer; random access analyzer AAS-iCE 3300 Gallery TM (ThermoFischer Scientific GmbH)	Focal length, photomentric, F-AES, F-AAS	DIN EN 25663
YIELD_N	kg ha-1	nitrogen yield	calculation	nitrogen yield calculated from N-content (%) and yield dry mass	-
CRUDEPRO_CONT	%	content of crude protein	-	calculation (Product of N content *6,25)	-
YIELD_CRUDEPRO	kg ha-1	yield of crude protein	calculated from crude protein-content (%) and yield dry mass	calculation	-
TGW	g	thousand grain mass	counting machine Contador E (Pfeuffer)	4 times 100 grains are counted; thousand grain mass extrapolated after that	-
GRAIN_SIZE1	%	percentage grain larger than 2.5 mm	Sortimat (Pfeuffer)	partial sample of 100g sorted/counted	-
GRAIN_SIZE2	%	percentage grain between 2.2 and 2.5 mm	Sortimat (Pfeuffer)	partial sample of 100g sorted/counted	-
GRAIN_SIZE3	%	percentage grain between 2.0 and 2.2 mm	Sortimat (Pfeuffer)	partial sample of 100g sorted/counted	-
GRAIN_SIZE4	%	percentage grain between 1.8 and 2.0 mm	Sortimat (Pfeuffer)	partial sample of 100g sorted/counted	-
GRAIN_SIZE5	%	percentage grain smaller than 1.8 mm	Sortimat (Pfeuffer)	partial sample of 100g sorted/counted	-
ADDITIONAL_INFO	-	remarks to sampling	-	-	-

Table V410_CROP_ONTOGENESIS: 

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2016; 2017; 2018	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2015 until 2018	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment in a special year; in 2016 Field_No =932; 2017 Field_No = 936; 2018 Field_No =938	-	-	-
PRECROP_PLANT_SPECIES	-	precrops: soybean (cv) Sultana ; Lupinus luteus (cv) Probor (after harvest lupin seeding of turnip rape; Brassica rapa var. Rapa ( cv Buko)); buckwheat (Fagopyrum tataricum)	-	-	-
SOWING_DATE	yyyy-mm-dd	date of sowing oats	-	-	-
EMERGENCE_DATE	yyyy-mm-dd	emergence of plants	-	optical assessment	-
BEG_FLOWERING	yyyy-mm-dd	Beginn of flowering of plants BBCH 61	-	see above	see above
MATURITY	yyyy-mm-dd	date of harvesting grains BBCH 89	-	see above	see above

Table V410_MANAGEMENT:

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	trial year 2016; 2017; 2018	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2016 until 2018	-	-	-
Field_NO	-	determined long-term number for the area; used for this experiment in a special year; in 2016 Field_No =932; 2017 Field_No = 936; 2018 Field_No =938	-	-	-
TILLAGE_BY	-	Tillage by plough, cultivator …	-	-	-
TILLAGE_DEPTH_CM	cm	tillage depth	-	-	-
TILLAGE_DATE	yyyy-mm-dd	tillage date in trial year	-	-	-
PLANT_SPECIES	-	plant species in Experiment were oats (covercrop) with undersowing (mix from grases with alfalfa and red clover)	-	-	-
CULTIVAR_NAME	-	cultivar name of oats	-	-	-
SOWING_DATE	yyyy-mm-dd	sowing date of oats and undersowing	-	-	-
ROW_DISTANCE	cm	row distance of of oats and undersowing	-	-	-
GERMINABLE_SEED_GRAINS_QM	germinable kernels/m2	seed density of oats; seeding amount of undersowing (kg/ha) (Knaulgras (Dactylis glomerata) 1.2; Luzerne (alfalfa; Medicago sativa)) 10.0; Rotklee (red clover; Trifolium pratense) 5.0; Wiesenschweidel (Festulolium) 1.2; Wiesenschwingel (Festuca pratensis) 2.4 )	-	-	-
EMERGENCE_DATE	yyyy-mm-dd	emergence of plants	-	optical assessment	-
APPL_INSEK_DATE	yyyy-mm-dd	application insecticide	-	-	-
INSEK_TYPE	-	type of insecticide	-	-	-
INSEK_AMOUNT	l/ha	amout of insecticide	-	-	-
HARVEST_DATE	yyyy-mm-dd	harvest date, for oats only	-	-	-
HARVEST_ME	-	methode of harvest (by machine or hand)	-	-	-
ADDITIONAL_INFO		remarks	-	-	-

Table V410_SOIL_H2O_NMIN_CONTENT:

Column name	Unit	Description	Instrument	Method	Reference
YEAR	-	year 2015; 2016; 2017; 2018 measurement in autumn after soybean; buckwheat; lupine and 2016; 2017; 2018 in spring before seeding oats	-	-	-
EXP_NO	-	experiment number determined for that special experiment 2015 until 2018	-	-	-
Field_NO	-	Field number; determined long-term number for the area; used for this experiment in a special saison (i. g. outumn 2015 to harvest 2016; in 2015/2016 Field_No =932; 2016/2017 Field_No = 936; 2017 /2018Field_No =938	-	-	-
PLOT_NO	-	Number of single plot (without special discription)	-	-	-
IRRI_PRECROP	-	irrigation treatment precrop	-	-	-
REP	-	contraction replication number of the same treatment	-	-	-
PRECROP_PLANT_SPECIES	-	precrops: soybean (cv) Sultana ; Lupinus luteus (cv) Probor (after harvest lupin seeding of turnip rape; Brassica rapa var. Rapa ( cv Buko)); buckwheat (Fagopyrum tataricum)	-	-	-
DATE	yyyy-mm-dd	date of sampling	-	-	-
DEPTH	cm	depth of sampling (0-30; 30-60; 60-90)	-	-	-
SOIL_MOIST_MASS_PERC	m%	soil moisture in mass percent	drying oven	Gravimetry method: Weighing of a soil sample, drying at 105°C and again weighing. Calculation of the mass of contained water, followed by calculation of volumetric water content.	HFA A2.1, in accordance with DIN ISO 11465
SOIL_MOIST_VOL_PERC	Vol%	soil moisture in volume percent	calculated with bulk density 1.5 g/cm3	calculation	DIN 19683
NH4_CONT	mg*100g-1	content of NH4-Nitrogen in soil	continuous flow analysator (CFA-SAN, Skalaranalytic GmbH)	Extraction with KCl solution, spectrophotometry	DIN 14256
NO3_CONT	mg*100g-1	content of NO3-Nitrogen in soil	see above	see above	DIN 14256
NMIN_KG_HA	kg*ha-1	mineralized Nitrogen (plant available)	Nmin=(NH4_N+NO3_N)*45 (layer 0-30; 30-60 cm ); *50 (layer 60-90 cm)	calculation	-
ADDITIONAL_INFO1	-	remarks on detection level of NH4	-	-	-
ADDITIONAL_INFO2	-	remarks on plots	-	-	-