Planting and Digging Date Summary for APRES
Response of the Cultivars CHAMPS and Perry to Planting and Digging Dates in North Carolina.
P.D. JOHNSON and D.L. JORDAN*, North Carolina State University, Raleigh, NC 27695; and T. CORBETT, North Carolina Department of Agriculture and Consumer Services, Lewiston-Woodville, NC 27849.
Research was conducted from 2009-2012 in North Carolina to compare peanut yield and market grade characteristics of the Virginia market type cultivar CHAMPS and Perry planted approximately May 5, May 25,and June 8 when dug approximately September 5 and 25 and October 5 and 20.
When dug at optimum maturity, as reflected in the highest yield among the four digging dates, yield and market grades generally varied little when peanut was planted in early or late May. In 3 of 4 years (2009-2011) peanut yield was lower when peanut was planted June 8 and dug October 20 compared with earlier plantings and digging at optimum maturity. However, in 2012 yield was highest when peanut was planted in early June and dug in late October compared with the other planting dates.
While surprising, these results most likely can be explained by weather conditions during the growing season in 2012 relative to other years. Hot and dry conditions were noted during much of 2012 in June and early July compared with greater rainfall during this period of time during 2009-2011. This weather pattern during 2012 most likely reduced the number of flowers produced when peanut was planted earlier in the season compared with the later-planted peanut. Peanut planted during early June was in the vegetative stage during the hot and dry conditions of June and early July. In mid-July rainfall and temperature patterns changed significantly in favor of both vegetative and reproductive growth and remained this way for most of the remainder of the growing season.
While results from this experiment generally show that yield of peanut in the Virginia-Carolina region are optimal when planting in May, in some instances weather patterns may favor later-planted peanut. These results also indicted that exhibiting patience in the fall in terms of digging can result in higher peanut yields.
Article first appeared as North Carolina Peanut Note (PNNC-2013-019)