[PDF][PDF] Irrigation and fertilization practices for Moringa plant growth under Upper Egypt conditions

MM EL-Sayed, AM Mahmoud - Middle East J. Appl. Sci, 2018 - researchgate.net
Middle East J. Appl. Sci, 2018researchgate.net
The applied amount of irrigation water and water consumptive use decreased as the
percentage of soil moisture depletion (SMD) increased. the highest value of both field water
use efficiency (FWUE= 0.53 kg/m3) and crop water use efficiency (CWUE= 0.58 kg/m3) were
recorded in the treatment of drip irrigation at 75% SMD with compost (CO), while the lowest
values of FWUE (0.22 and 0.24 kg/m3) and CWUE (0.32 and 0.34 kg/m3) were recorded
under flood irrigation at 50% SMD with chemical fertilization in the 1st cut and flood irrigation …
The applied amount of irrigation water and water consumptive use decreased as the percentage of soil moisture depletion (SMD) increased. the highest value of both field water use efficiency (FWUE= 0.53 kg/m3) and crop water use efficiency (CWUE= 0.58 kg/m3) were recorded in the treatment of drip irrigation at 75% SMD with compost (CO), while the lowest values of FWUE (0.22 and 0.24 kg/m3) and CWUE (0.32 and 0.34 kg/m3) were recorded under flood irrigation at 50% SMD with chemical fertilization in the 1st cut and flood irrigation at 75% SMD with compost plus rock phosphate application (CO+ RP) in 2nd cut, respectively. The drip irrigation method realized the highest yield and its components compared to that of flood irrigation method. As well as organic fertilization enhanced plant resistance for water stress compared to chemical fertilization. The nutrient contents (N, P, K and Ca) in dry leaves were higher under drip irrigation at 50% SMD with CO+ RP application (2.96, 0.008, 3.9 and 1.2%, respectively). The highest value of Chlorophyll a (152.1 mg/g FWt), chlorophyll b (32.6 mg/g FWt) and Carotenoids (59.62 mg/g FWt), soluble proteins (158.50 mg/g FWt) and total antioxidants (62.61 mg/g FWt) were recorded under drip irrigation at 50% SMD with CO+ RP application. Drip irrigation at 75% SMD with CO+ RP application showed the highest value of prolin (1.61 mg/g DWt), falvonoids (2.31 mg/g FWt), vitamin C (2.30 mg/g FWt) and reducing power (0.307 mg/g FWt) compared to other treatments. As well as Drip irrigation at 75% SMD with CO application showed the highest value of phenolics (8.34 mg/g FWt) compared to other treatments.
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