Data was created in the UNSIFRAN project
Funding: BMEL (Bundesministerium für Ernährung und Landwirtschaft) in the frame of the BÖLN (Bundesprogramm Ökologischer Landbau und andere Formen nachhaltiger Landwirtschaft) program. Grant numbers are 2815OE128 and 2815OE093.
Special thanks to AMAZONEN-WERKE H. DREYER SE & Co. KG for providing special sowing machinery adapted for sowing under a mulch cover.
Published with the article:
	Schmidt, F.; Böhm, H.; Graß, R.; Wachendorf, M.; Piepho, H.-P. Management Effect on the Weed Control Efficiency in Double Cropping Systems. Agronomy 2023, 13, 467. https://doi.org/10.3390/agronomy13020467
By reuse, please cite the above referred article, as this contains important background infromation of the dataset.

Datei:
	DWS_presence-absence_2019-21
		.cvs (;)
		NA = " "
		headers = TRUE
		0 = absence
		1 = presence
		DWS = dominant weed species
		for more information, see the related article
		headers:
			location 	(n = 2): 	[TRE, NEB]
							TRE (Trenthorst (DE)), NEB (Neu-Eichenberg (DE))
			block1_row 	(n = 4):	[A, B, C, D]
			block2_5col	(n = 4):	[1, 2, 3, 4]
							every 5 columns give a full block, perpendicular to row
			col		(n = 22):	[1, 22]
							column
							originally n = 20
							TRE, 2019-20: due to technical problems, new plots used
							NEB, 2020-21: after excluding triticale, n = 19
			subplot		(n = 12):	[1, 12]
							NEB: SCS, DCS fertilized and unfertilized split-plots
							already includes block1
			quadrat		(n = 3):	[I, II, III]
							0.5 m x 0.5 m quadrat
							2019-20: random in the space between two rows
							2020-21: random, but always edging a row
							unequal sampling space to row width (50 cm, 75 cm)
			plot		(n = 80+):	[1, 87]:[*A, *B]
							smallest unit for a treatment
							NEB: subplots have a different plot ID [*A, *B]
							NEB: side A looks into the direction of block1_row A
							due to management error (usually by maize sowing), excluded:
								TRE, 2019-20: plot 67
								TRE, 2020-21: plot 28, 55
								NEB, 2019-20: plot 40
								NEB, 2020-21: plot 50
								additionally: NEB, 2020-21: plot 59B quadrat III: a small hipe of soil
			trt		(n = 18+):	[1, 22]:[*A, *B]
							treatment ID
							for combinations, see: sow_time, FC, FC_group, management, rowwidth
							TRE: additionaly 2 treatments
							NEB: additional 10 treatments, take care of 1B, 2B vs 1BB, 2BB
							NEB: excluded 1B, 2B, 1BB, 2BB from the calculations
			year		(n = 2):	[2019-20, 2020-21]
			time		(n = 6):	[t0, t1, t2, t3, t4, t5, t6]
							t0 is hypothetically 0
							canopy closing is between the last timestep and 2 weeks after
			
			sow_time	(n = 2):	[early, late]
							treatment dependant
			FC		(n = 5):	[Control, P, P-Mix, V, V-Mix]
							first crop
							Control = none, P = winter pea, 
							P-Mix = winter pea + triticale (2019-20), winter pea + rye (2020-21)
							V = winter vetch, V-Mix = winter vetch and rye
			FC_group	(n = 3):	[Control, Pure, Mix]
							Control = none, Pure = pure legume, Mix = legume + cereal mixture
			management	(n = 8):	elements: DCS, DCMS, SCS, RT, NT, NoFert, YesFert, NoMech, YesMech
							a combination of FC use, tillage, additionaly fertilization, mech. weed control
							4 common combinations [SCS YesFert YesMech, DCMS NoFert NoMech,
										DCS RT YesFert YesMech, DCS NT YesFert YesMech]
			rowwidth	(n = 2):	[50, 75]
							in centimeter

			NA		[0, 1]		missing observations (no, yes)
			none		[0, 1]		no DWS (no, yes)
			ALOPMYOS	[0, 1]		if species is the DWS (no, yes)
							rarely, two to three species have the same area covered -> all included
			...

	
	DWSgroups
		.cvs (;)
		NA = " "
		headers = TRUE
		DWS = dominant weed species
		DWSgroups = dominant weed species groups according to Rothmaler (ISBN 978-3-8274-1842-5)
		for more information, see the related article
		headers:
			DWS_short	4 letters of genus, 4 letters of species
			DWS_long	full scientific name
					based on Integrated Taxonomic Information System (ITIS)
			DWSgroup	[winter annual, summer annual, winter-summer annual, biannual-perennial]
					dominant weed species groups according to Rothmaler (ISBN 978-3-8274-1842-5)
			location	[TRE, NEB]
					at which location species were observed
					TRE (Trenthorst (DE)), NEB (Neu-Eichenberg (DE))
			assemblage	additional information of species assemblages


For more information on the experiment, please read the related article