Cover Crop Biomass Harvest Influences Cotton Nitrogen Utilization and Productivity

Table 1

Analysis of variance for cotton population, leaf  N concentration, plant N concentration, cotton biomass, and N uptake at first square as affected by year and rye residue management. 𝑃 values within a row in bold are significant at 𝛼≤0.05.

Source of variation	Cotton population	Leaf  N concentration	Plant N concentration	Cotton biomass	N uptake
	𝑃>𝐹
Year	≤0.01	≤0.01	≤0.01	0.64	0.15
RM^†	≤0.01	≤0.01	≤0.01	≤0.01	≤0.01
Year*RM	0.58	0.02	≤0.01	0.33	0.58

^†Rye residue management.