Research Article
Planting Date and Seeding Rate Effects on Sunn Hemp Biomass and Nitrogen Production for a Winter Cover Crop
Table 2
Growing degree days measured for sunn hemp during the 2007 and 2008 growing seasons in east-central Alabama.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
aGDD until termination. Calculated as [(maximum temp. + minimum temp.)/2] −10°C. bPlanting date of sunn hemp immediately after cash crop harvest (PD1) and planting date of sunn hemp 2 weeks after cash crop harvest (PD2). |