Why are some mature broad bean pods empty, with immature, undeveloped beans?
- Broad beans need the right day-length and a temperature of about 20°C at flowering. If the beans are planted too early in the spring, & there is a blip in the weather as the first beans flowered, the beans will not set well.
- Crops planted too late will also produce low yields and will be affected by high temperatures later in the season.
- Broad beans produce less well in windy areas. Double rows (20 cm apart) help the plants to withstand wind. Otherwise a windbreak pays dividends.
Broad bean pods tend to be empty at the start of the season, before the conditions are right for the beans to set.
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