تأثير الشد المائي و الري بالمياه الكبريتية على نمو و حاصل محصول الكتان الزيتي

الملخص EN

Soil samples with fine texture were collected from two location to study some soil physical properties.

Soils gave high liquid index and low values of saturated hydraulic conductivity.

The moisture content of second location soil be increased by 1.25 % than the first location.

Soil moisture in the first treatment (75% field capacity) approximates (half available water), in the other hand field capacity approximates (half saturated moisture content).

About 3- 15 day period between alternative irrigations (saturated moisture content – permanent wilting point), but it be about 2- 8 day (field capacity – permanent wilting point) depending on the month of measurement.

Irrigation period estimating by using climate data (degree of temperature 7- 26 °C and relative humidity 35 – 85 %) in derived relations.

Agricultural experiment was conducted by using plastic pots with sieved air dry soil and bulk density 1.2 Mgm / m3.

Flax (Linum usitatissimum L.) Syrian class sowed in green house, the irrigation by sulfatic wells water gave significant increasing (especially in second location soil) at plant height, branches number / plant, capsules number / plant and weight of thousand seeds.

Irrigation in field capacity treatment (against 75% field capacity) showed significant increase for the properties (plant height, branches number / plant and capsules number / plant) and also affected significantly on the weight of thousand seeds and seed oil content of flax.