Response of Three Varieties of Maize (Zea mays L.) to Integrated Foliar Fertilization

Abstract

one field experiment was carried out in the spring and autumn seasons of 2019 in Abu Gharib research station of the Agricultural Research Department / Ministry of Agriculture. In silty loam of soil .To, study the effect of integrated foliar fertilization (Triplex Amino) on growth, yield and quality of maize. The experiment was applied in the order of split - plot according to the design of RCBD with three replications. The main plot included four concentrations of Triplex amino (0. 3. 6.9) gm. L-1 , While the secondary plot included three varieties of maize (Sarah, Fajr1 and 5018). The important results were the following: The variety of 5018 gave the lowest rate for number of days from planting to 50% tasseling flowering 72.08 and 67.75 days and number of days from planting to 50% silking flowering 77 43 and 70.75 days, and gave the highest rate for each of: plant height 151 83and 183 72 cm , leaf area 5526 and 5955 cm2 , number of grains in the row 29 81 and 36 22 grain. row1- , yield of per plant 117 74 and 164 27 gm , grain yield 6.07 and 9.19 t. h-1 ,biological yield , harvest index and oil Percentage in the grains 4.30 and 3.99% for the two seasons respectively . While the variety Sarah gave the highest rate of number of ears in plant 1.77 and 1.86 ear.plant-1 , number of rows in the ear 15.32 and 17.27 row.ear-1 ,weight of 500 grains 125.83 and 143.25 gm. and the percentage of protein 8.98 and 9.03% for the two seasons respectively. The concentration of 9 gm. L-1 of the fully foliar fertilization recorded the lowest rate of number of days from planting to 50% tasselling flowering 69.67 and 64.03 days and number of days from planting to 50% silking flowering 74.33 and 68.20 days, and gave the highest rate of the plant height 154.11 and 190.43 cm , leaf area 5787 and 6415 cm2 , number of ears in plant 1.78 and 1.89 ear.plant-1 , number of rows per ear 15.74and 17.12 row.ear -1 , number of grains per row 30.81 and 37.39 grain. row-1 , yield of per plant 114 19 and 162 87 gm, total grain yield 6.02 and 9.29 t.h1 , biological yield, harvest index and oil percentage in the grains 4.56 and 4.00% for the two seasons respectively. While the concentration of 6 gm. L -1 presented the highest rate of protein percentage 9.27 and 9.32%. As for the concentration of 3 gm. L-1 registered the highest rate of weight of 500 grain 128.56 and145.33 gm for the two seasons respectively. 69 The interaction between variety 5018 and concentration of 9 gm .L-1 from integrated foliar fertilization recorded the lowest rate for number of days from planting to 50% silking flowering in the spring season and also registered the highest rate of each of the plant height , leaf area in the spring season, yield per plant, total grain yield , biological yield, harvest index and oil percentage in the grain .While the interaction between variety Sarah and concentration of 9 gm. L-1 of the fully foliar fertilization was significant in number of ears per plant in the autumn season and number of rows per ear in the autumn season , As for the interaction between varietiy of Fajr1 and concentration of 9 gm .L-1 showed the highest rate for number of grains per row in the autumn season.