تأثير مستويات الري بالتنقيط على نمو محصول البطيخ صنف كرست (Citrullus lanatus Crest) في دلتا ابين The Effect of Drip Irrigation Levels on the Growth of Watermelon (Citrullus lanatus Crest) in the Abyan Delta

This experiment was conducted at the Agricultural Research and Counseling Center of the Abyan Governorate, which is located at an altitude of 20 m above sea level, located at latitude 8013 north and longitude 20 45 east during the agricultural season 2023 and 2024 AD, with the aim of studying the watermelon response (Citrullus lanatus) is a class of two-tier drip irrigation, the first level, when 30 of the water facilitator is depleted, at 70% of the facilitator water at the second level. Irrigation when 60% of the water from the facilitator is depleted of 40% of the facilitator water), and the effect of this on the growth of the watermelon is the Crest class under the conditions of the Delta Abyan.

Irrigation added for various school transactions according to the depth of water (10.18 cm depth of water) at the effective root depth of watermelon (60 cm. It is possible to calculate the added irrigation rates for the various treatments studied). Irrigation for each irrigation time transaction = the area of the irrigated treatment m2 the amount of irrigation water added m3 and the period between the irrigation dates) = the depth of irrigation for the transaction, the amount of evaporation, the daily transpiration of 7 mm/ day, and by calculating the drainage of the points 8 l/hour, with which the experimental pieces were irrigated. Irrigation level exceeds 30% of the facilitator water significantly in plant height, stem diameter, number of plant leaves, number of branches, paper area and results detection effect of drip irrigation when the irrigation is treated at exhaustion 30% of Facilitator water has given the best results in plant height, stem diameter, plant number, branch number, leaf area, wet weight and dry weight.