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Sunflower, Helianthus annus.

There are two types of sunflower crop and refer to oily (the other is the use of mouth sunflower, let pipes lifetime ...)

Especially grown mainly in the area of Andalusia and basin and then extract the oil, during the years 70-80 in Spain there was a large increase in this crop mainly due to the following reasons:

European aid as grants.

This plant bears drought well, provided virtually trouble.

It is a simple crop

The cultivation techniques are very similar to those of cereals, a product already heavily exploited in this country.

Plant

The roots tend to grow perpendicular to the ground in order to make better use of water.

Stem: With a height that can have from 50 cm. to 220 cm. Stem has a stocky build, not in vain must support the weight of the pipes, it also has a kind of hairs that cover

Leaves: Large with dimensions which may even reach 30 cm.

Fruit: What is commonly called a pipe. The important thing is not the shell pipe but what's inside the grain, which has the highest oil content

Pests

We have said that to be a culture very similar to the cereal as well as it will affect almost the same, the most important are the birds especially at the beginning of the cycle that they even kill the plant and eat when very young, but also at the end of its cycle when it has its distinctive fruit are pipes and when the plant is well underway boars can also be very harmful.

Sowing

It is done for the month of March and April

Cultivation

The sunflower is a kind of spring and therefore has different requirements from other species.

It is a plant that needs water for its first life cycle and just before harvest, note that it is also very resistant to high temperatures even higher than 45 degrees, it is not resistant to saline soils and waters with some degree of salinity.

The plant can thrive both completely dry crops and irrigated, although today it is normal to see large areas of irrigated sunflowers by a kind of car that made them spray water as when a field is irrigated area the car shifted to another area which has not yet been watered, preferably water is usually at night in order to take advantage of low heat hours.

Harvest

About the end of August or early September in dry. In irrigation is on the end of September or early October.

 


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