Assessing the Economic Impact of Inversion Tillage, Cover Crops, and Herbicide Regimes in Palmer Amaranth (Amaranthus palmeri) Infested Cotton

Table 1

Schedule of operations.

Operations	Experiment years
	2008/2009	2009/2010	2010/2011
Broadcasting Palmer amaranth seed	19 Nov
Fall inversion tillage	19 Nov
Cover crop planting	20 Nov	6 Jan	2 Dec
Cover crop (rye) fertilization	—	—	14 Feb
Cover crop (clover) replant	—	—	3 Mar
Winter burn down (fallow)	—	—	31 Mar
Rolling and termination of cover crops	22 Apr	18 May	19 Apr
Subsoiling	23 Apr	24 May	26 Apr
Cotton planting	1 Jun	27 May	5 May
Cotton fertilization	1 Jun	27 May	5 May
PRE application	3 Jun	27 May	6 May
POST application	16 Jun	16 Jun	24 May
Additional POST application	—	—	13 June
Graminicide application	13 July	8 July	6 July
LAYBY application	14 Aug	16 Aug	19 July
Cotton defoliation	26 Oct	14 Oct	13 Sep
Cotton harvesting	9 Nov	20 Oct	30 Sep

Schedule of operations adapted from Aulakh et al. [15].