Root Development of Onions

Onions have a shallow, sparsely branched root system with most roots in the top foot of soil. Rooting density decreases with soil depth. The sparse, shallow rooting of onions has important implications for management of relatively immobile nutrients (Phosphorus (P), Potassium (K), and some micronutrients…

Goodbye Copra, Hello Patterson!

In 2019, we were notified that Copra onion seed would no longer be produced and immediately purchased all the seed that was available. When seed companies produce hybrid onion seed, such as Copra, there must be both maternal and paternal parent lines; meaning two open…