Shortage of water in arid and semi-arid regions increases the need of
applying efficient drip irrigation system. A two-year field study in the semiarid
region of Upper Egypt was carried in randomized complete block design
with four replicates. Wheat plants were irrigated by 100 or 75% of water
requirements (I100 D 5,370 and I75 D 4,027 m3 ha¡1). Irrigation of wheat by
I100 increased growth and uptake of nitrogen, phosphorus, and potassium
compared to low irrigation level. I100 caused 14 and 5% increase in straw and
biological yield, respectively, compared to I75. Grain yield and water use
efficiency (WUE) were higher by 20 and 59% in the case of I75 compared to
I100. The use of deficit irrigation in drip-irrigated wheat under arid conditions
is an effective tool to maximize efficiency of water use; moreover, 4,027 m3
ha¡1 is the optimum irrigation rate for maximum WUE and grain yield.
ملخص البحث
قسم البحث
مجلة البحث
Journal of Plant Nutrition
المشارك في البحث
الناشر
Taylor Francis
تصنيف البحث
1
عدد البحث
41 (12)
موقع البحث
NULL
سنة البحث
2018
صفحات البحث
1576-1586