توصيف و رسم جبهة الابتلال تحت النقاطات في تربة قرفية غير مزروعة عند الري بالتنقيط

الملخص EN

In light of the prevailing dry weather conditions, it has become an urgent need to use water-saving irrigation and the rationalization of consumption.

Drip irrigation is the most important method usedto irrigate most of crops grown in Daraa provinc where the cinnamon soil is more common.The study was conducted in 2011 in Deraa province in order to determine the date when using different irrigation flows (8 L/ Sa- 16 L/ h 2 - 24 L/-32 for 3 h/4 h) and determine the distance between drippers by drawing front wettability under each dotted was formed.

Results indicated based on mechanical analysis the soli had a claymud ratio ranged between 52 and 59% with a good ability to keep water wherethe field capacity rated between30 and 38.85%.

While the wettability front formed under dropers were in a semi-circular shape (bulbous).

The irrigation intervals was 4 to 6 days in the first transaction (8 L/ h), 4 to8 daysin the second transaction (16L/2 h), 4-10 days in the third one (24L/3 h) and 6-10 days in the fourth trasaction (32L/4 h).

The distance between droppers, depending on drawing a wetting front, was in the first treatment 76 cm, and increased steadily to reach 80, 94 and 104 cm in the second, third and fourth transaction, respectively.