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کشاورز ایرانی (مرکز ارائه خدمات جامع آموزش کشاورزی) - Best Management Practices For Strawberries

کشاورز ایرانی (مرکز ارائه خدمات جامع آموزش کشاورزی)

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یکشنبه 31 اردیبهشت 1391

Best Management Practices For Strawberries

نویسنده: مهندس علیرضا شعاعی   طبقه بندی: گلخانه، سایر، میوه کاری، باغداری، 

Best Management Practices
For
Strawberries

Best Management Practices are the best recommended practices for growing a specified crop.  These recommended practices are based on research and experience and apply to the specified crop under the specified conditions.  These recommended BMPs are not the only way to grow a crop but are the best way determined by the author of the BMP.  The BMP may change as additional research becomes available.

Author:  Omar Zeidan, Head of Vegetable Department, Extension Service, Ministry of Agriculture

Best Management Practices for growing:  Strawberries

Steps

Recommendations

1.   Varieties

328 - Early production
329 - Medium production
Osogrande - Late production

2.   Seedling preparation

Self-nursery or in commercial nursery.

Mother plants must be prepared and ordered in January to transplant in April.

Mother plants must be free of diseases, preferably produced in a meristem nursery.

3.   Planting date

End of September and beginning of October, depending on variety.

4.   Field preparation

Use suitable sandy and light soils for strawberry production.
Plow soil to depth of 40-50 cm.
Sterilize soil by methyl bromide, 50 kg per dunam.
Establish seed beds, height 15-20 cm.
Seed beds spaced 115 cm apart. Plant spacing in the row is 50 cm.

5.   Pre-plant fertilizer

The following must be supplied through soil preparation:
Organic matter, 5-6 m3/dunam
Super phosphate, 100-150 kg/dunam
Potassium chloride, 50-100 kg/dunam

6.   Pre-planting herbicide

Before planting, spray Ronstar or Goal herbicide on the seed beds to avoid seed weed germination.  After spraying, supply 15-20 m3/water per dunnam to leach the chemicals into the soil by using microsprinklers.

7.   Plant space

Per one seed bed, 4 rows of  plants, allowing 25 cm between rows. Allow 25-27 cm between plants in the row.  In general, the number of plants per dunam is about 8,500-9,000 plants.

8.   Post-planting nutrition

Use complete fertilizer N:P:K* with microelements like 5:3:8 or 7:3:7.  Start with one liter per day/dunam, increasing to 2 liters per day/dunam in season.

9.   Irrigation schedule

Irrigation can be controlled by tensiometers according to daily evaporation. After establishing the plants, it was found that the daily amount of water needed to plant is according to the following schedule:

October      2.0 m3/day/dunam
November  1.6 m3/day/dunam
December  1.0 m3/day/dunam
January      1.0 m3/day/dunam
February    1.5 m3/day/dunam
March        1.7 m3/day/dunam
April          2.8 m3/day/dunam
May           4.0 m3/day/dunam

10. Disease monitoring

It is important that strawberries have good ventilation to avoid diseases. Open the plastic tunnel at every opportunity. Keep the plastic closed only on rainy days.

11. Main diseases

Leaf spots - ramolaria, botrytis, seclorotina

12. Main insects

Spider mites, thrips, aphids, caterpillars

13. Harvesting

Pick strawberries every 2-3 days.
Pick strawberries carefully by hand to avoid injury of the fruit. Harvesting is continuous for 5-6 months, normally beginning in December until the end of May.

14. Storage

Strawberry fruit is very sensitive; it needs to be marketed immediately after picking. It can be stored at 4°C for a few days.

15. Additional information

Use plastic mulching over the seed beds to have clean fruits:
- To avoid high humidity in the tunnels
- To reduce the incidence of botrytis
- Use colored plastic for mulching, preferably shiny plastic. If there is danger of seed weed germination, use black plastic for mulching.

*KEY:

N:P:K     Nitrogen:Phosphorus:Potassium

 

 
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