000			02724nab|a22003257a|4500
001			67707
003			MX-TxCIM
005			20241219092850.0
008			20247s2024||||mx |||p|op||||00||0|eng|d
022			_a1385-1314
022			_a1573-0867 (Online)
024	8		_ahttps://doi.org/10.1007/s10705-024-10368-3
040			_aMX-TxCIM
041			_aeng
100	1		_aRabin, K.C. _934421
245	1	0	_aCover crop quality and quantity influences organic corn performance more than soil context
260			_bSpringer Netherlands, _c2024. _aDordrecht (Netherlands) :
500			_aPeer review
520			_aCover cropping is a common practice among organic growers, well-known for its potential to supply nitrogen (N) to subsequent cash crops. Uncertainties and challenges exist in understanding how cover crops interact with soil properties and management practices across organic farms to supply N, and if such N supply is synchronous with subsequent cash crop N demand. An on-farm study examined cereal rye (Secale cereale) versus crimson clover (Trifolium incarnatum) planted before corn (Zea mays L.) in five organic farms in Michigan with a range of soil properties and management practices. High quality crimson clover residue [Carbon (C):N ratio 15:1] was associated with higher soil inorganic nitrogen, corn chlorophyll content, tissue N content, and grain yields relative to low quality cereal rye residue (C:N ratio 25:1). There were several lines of evidence that low quality cereal rye residue coupled with substantial biomass and a dry season limited N release during peak corn N demand. Nitrogen uptake efficiency (NUE, ratio of total N removed by corn to total N input) was above 1 for corn farms with low soil organic matter (SOM), active N and C pools, and lower than 1 for farms with high SOM and active N and C pools. Overall, cover crop biomass and cover crop quality was a more important driver of corn performance than background SOM content in organic corn farms. Our research highlights the challenges of ensuring sufficient N supply in organic field production, and the importance of planting a legume cover crop before corn.
546			_aText in English
650		7	_aNitrogen _2AGROVOC _92912
650		7	_aMineralization _2AGROVOC _912097
650		7	_aCrop quality _934422 _2AGROVOC
650		7	_aMaize _2AGROVOC _91173
700	1		_aSnapp, S.S. _8001712907 _gSustainable Agrifood Systems _97149
773	0		_tNutrient Cycling in Agroecosystems _dDordrecht (Netherlands) : Springer Netherlands, 2024. _x1385-1314 _gv. 129, p. 185–201 _wu63406
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/34611
942			_cJA _n0 _2ddc
999			_c67707 _d67699