| 词条 | Potato onion |
| 释义 |
| name = Potato onion | species = Allium cepa | group = Aggregatum Group[1] }} The potato onion (also known as multiplier onion) is a variety of the Aggregatum Group of Allium cepa, similar to the shallot, although producing larger bulbs. It is remarkably easy to grow, keeps better than almost any other variety of onion, and is ideal for the home gardener with restricted space. It was very popular in the past, but--like many old varieties--it has been passed over in favor of types more suitable for mechanical harvesting and mass marketing. It is generally planted from bulbs, not from seed. Most sources say it should be planted in the fall, but this probably applies only to areas with moderate climates. It can be planted in the spring as early as the ground can be worked and produces well when so planted, up to at least the most northern limits of planting zone 5. Sources differ about planting depth, some saying shallow planting is appropriate and others calling for deeper planting. This onion does tend to grow very close to the surface and a planting hole perhaps an inch deeper than the diameter of the bulb seems to work well. The onions vary in size from half an inch to three inches in diameter (1 - 8cm). References1. ^{{cite web | url = http://edis.ifas.ufl.edu/MV100 | title = Onion, Potato | publisher = University of Florida, Institute of Food and Agricultural Sciences | author = James M. Stephens}} External links
2 : Onion cultivars|Perennial vegetables |
| 随便看 |
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。