Dalal H. Sary, Enga M. Niel and A.E.A. Abd El-All( 2021). Effect of Drip Irrigation Water Regime and Calcium Humate on the
Growth Performance, Yield of Faba Bean (Vicia faba L.) Grown in Sandy Soil
American-Eurasian Journal of Scientific Research 16 (1): 53-66, 2021 ISSN 1818-6785
Abstract: Field experiments were conducted during two successive winter seasons of (2016/2017 and 2017/2018) in Ali Mubark experimental farm, El-Bostan area, Southern EL-Tahrir Region El-Beheira Governorate, Egypt. The experiments aimed to study the effect of different irrigation water requirements (100 (I100), 75 (I75) and 50 (I50)% of ETo) and calcium- humate at rates of 0 , 10, 20 liter acre sprayed on soil surface on growth, yield 1 of beans (Vicia faba L.) and soil fertility in sandy soils under drip irrigation system. The results indicated that increasing irrigation water significantly increased soil available macronutrients, soil respiration and soil organic matter, as well as, leaf and seed NPK contents, protein contents and total yield. There were relative increases in total yield due to irrigation treatments I75 and I100, as mean values of the two growing seasons (4.69 and 12.52 %) compared with I50. Increasing irrigation water above I50 led to a reduction in water use efficiency (WUE) since WUE mean values of the two growing seasons were 2.21, 1.54 and 1.24 kgm 3 for I , 50 I75 and I100, respectively. Calcium-humate application showed significant increase in soil available NPK, organic matter and respiration compared with non-treated soil. In addition, significant increases in leaf and grain of NPK, proteincontents and total yield were reported with increasing calcium-humate application rate while proline was less at Ca-H20. Results showed that increasing Calcium-humate application has had a pronounced effect on WUE values compared with other water irrigation treatments. Mean values of WUE were 1.25, 1.59 and 1.83 kg m 3 for Ca-H0, Ca-H10 and Ca-H20, respectively. The highest values of WUE were obtained from the treatment 50% ETo with calcium-humate at a rate of 20 liters acre , the highest rate of yield of Faba bean 1
was reported under 100 % of the ETo and with the use of calcium-humate at a rate of 20 liter acre . 1
Keywords: (Calcium -humate Faba bean Sandy soil Irrigation water regime Water use efficiency)
