Proper soil cultivation of Natural saffron
Since relatively large onion, natural saffron -term ( 7-5 years old ) stayed on Earth . Earth, sand, clay or a combination of the onion to the style of this period in addition to the food supply , in contrast to the specific requirements of regional resistance .
So for proper plant growth and development and production of high quality and favorable fertile land and no trees drained soil ( loamy , Lemonade , clay and sand) with lime and salt on the ground that the PH is between 7-8 and poor moist , acidic preferred .
Saffron hold ground with stones or weeds or decaying organic matter is not a good product, it does not .
Preparing the ground :
In preparing the land for planting natural saffron need special attention are usually the first opportunity in the fall or winter if the ground of the deep plowing they or have access to under the right circumstances is not possible to the deep plowing at the end of spring tractor early July also did.
The traditional way to prepare the ground in early spring after spring rains cut off with a chisel plow to invade Iran after 15-10 days of action to re- plow the ground and if the ground is a clod to plow back and clod with Malay crushed to earth again after two or three weeks till the directions are perpendicular to each 100 square meters of land before plowing third 10-5 ass load of rotten manure can be spread by farmers as well as those who plowing regardless of the frequent provision of suitable farming land, some of the weeds are cleared .
The plots of land are classified by length and width than the slope of the plots of land and water power set . ( Of course nutritionists have recommended that about 250 kg of potassium sulphate is mixed with the soil at this stage )
Onion and natural saffron :
Only by establishing new fields of natural saffron bulbs available and is common . So the preparation and selection of the finest bulbs for planting in the development of culture is important.
Better onions are planted in the ground after removing the bulb while continuing to break new ground to be deployed .
Autumn crocus bulbs to plant on time ( early June to mid- September, but it can be planted in late July and early August to avoid planting bulbs because at this time of the air and the ground is very hot and There are fears the onions when the moisture displacement is gone and it hurt .
based on research conducted by the Industrial Research Center of Khorasan best time is May cultivate .
The type and quantity of onion cultivation of natural saffron :
As was said by natural saffron bulb Shoot The Bold bulbs ( corms ) will be increasing the size of a hazelnut to a walnut is different .
Bulbs should be chosen larger , more healthy and without ulcers and abrasions and free of disease.
It fungicide before planting onions with such toxins Srzan series Tyzan and Gramnyvn Other than 500-300 mg of venom to be disinfected hundred pounds of onions against fungal diseases .
When planting is better than Polk or floor dry layer of onions and some onion skins are separated from the water absorption by the free onion sprouting easier and faster to do .
Planning and planting the bulbs , depending on the coarseness of 10-3 tons per hectare varies . Planting distances are usually 30-25 cm from each side.
planting bulbs in each hole 5 digit take rate will be 5 tons . It is best that the investigation onions, onions size was greater than 8 g .
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