... newer stories
Samstag, 23. Juli 2011
Cultivation of Alstroemeria aurantiaca II
berner, 14:20h
The temperature at the beginning of culture ... during the first six weeks after planting, the optimum is 13 ° C overnight and between 14 and 16 ° C during the day. Somewhat lower temperatures cause a delay in growth, but in return you can get better quality with a slightly shorter stem.
Already in the rest of the crop, the optimum temperature for growth of Alstroemeria flowers in summer is 18 to 22 º C during the day and somewhat cooler at night. In winter, daytime temperatures should range optimum between 10 and 14 º C. The soil temperature is very important in this crop and if it stays between 14 and 17 º C, the quality of the flowers will be higher.
In the cultivation of Alstroemeria aurantiaca, recommended moisture is high, between 70 - 80% and although the Alstroemeria is not very susceptible to the fungus Botrytis ... recommended to keep the humidity below 90% when the temperatures are low, as example during the winter. Relative humidity at these levels helps produce a longer stems and leaves also somewhat longer.
In greenhouses, when the humidity is very high it is recommended to ventilate by opening windows, use heating or using fans.
In Spain, the cultivation of Alstroemeria aurantiaca do not need artificial lighting, but in countries like Holland, lamps are used for high intensity discharge quality improvement and production of stems in winter. As curious applied from 3,000 to 4,000 lux per square meter.
A good crop of Alstroemeria aurantiaca greenhouse produce between 180 to 400 stems per square meter per year, depending on variety, production method, the amount of light, etc.considerando acceptable about 60 - 80% of production can be sold as premium product (a stout stem flowers with 4 or more).
As for possible pests, diseases and other problems, the rusticity of the Alstroemeria not imply that culture may occur in pests like aphids, thrips, spider mites, snails, caterpillars, white flies and nematodes, easily controlled if detected in its early stages of attack.
At the level of disease only when the soil is too wet, Pythium and less frequently present a problem Phythophthora ... Rhizoctonia and sometimes when there is a warm and humid.
As physiopathies ... iron deficiency is usually found on young leaves which turn yellow while veins remain green, manganese deficiency is manifested in the young leaves which turn yellow only remaining major green veins, and magnesium deficiency occurs in older leaves that turn yellow, and are yellow stripes and green leaves.
Already in the rest of the crop, the optimum temperature for growth of Alstroemeria flowers in summer is 18 to 22 º C during the day and somewhat cooler at night. In winter, daytime temperatures should range optimum between 10 and 14 º C. The soil temperature is very important in this crop and if it stays between 14 and 17 º C, the quality of the flowers will be higher.
In the cultivation of Alstroemeria aurantiaca, recommended moisture is high, between 70 - 80% and although the Alstroemeria is not very susceptible to the fungus Botrytis ... recommended to keep the humidity below 90% when the temperatures are low, as example during the winter. Relative humidity at these levels helps produce a longer stems and leaves also somewhat longer.
In greenhouses, when the humidity is very high it is recommended to ventilate by opening windows, use heating or using fans.
In Spain, the cultivation of Alstroemeria aurantiaca do not need artificial lighting, but in countries like Holland, lamps are used for high intensity discharge quality improvement and production of stems in winter. As curious applied from 3,000 to 4,000 lux per square meter.
A good crop of Alstroemeria aurantiaca greenhouse produce between 180 to 400 stems per square meter per year, depending on variety, production method, the amount of light, etc.considerando acceptable about 60 - 80% of production can be sold as premium product (a stout stem flowers with 4 or more).
As for possible pests, diseases and other problems, the rusticity of the Alstroemeria not imply that culture may occur in pests like aphids, thrips, spider mites, snails, caterpillars, white flies and nematodes, easily controlled if detected in its early stages of attack.
At the level of disease only when the soil is too wet, Pythium and less frequently present a problem Phythophthora ... Rhizoctonia and sometimes when there is a warm and humid.
As physiopathies ... iron deficiency is usually found on young leaves which turn yellow while veins remain green, manganese deficiency is manifested in the young leaves which turn yellow only remaining major green veins, and magnesium deficiency occurs in older leaves that turn yellow, and are yellow stripes and green leaves.
... link
