Effect of Planting Dates and Mineral Fertilization Levels on Growth Characteristics and Grain Quality of Some Bread Wheat Varieties

Document Type : Original Article

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Agronomy Department, Faculty of Agriculture, Mansoura University, Egypt

Abstract

Two field experiments were conducted at a private Farm in Abu Zekry Village, Miniat El-Nasr District, Dakahlia Governorate, Egypt, during 2021/2022 seasons and 2022/2023 to study the response of three wheat cultivars (Giza 171, Sids 14, and Misr 1) to NPK fertilizers levels under different planting dates conditions to face climate changes. The field experiment was carried out in split-split plots system in a randomized complete block design in three replications. Planting wheat on 20th December produced plant height, total chlorophylls, area of the flag leaf and the number of days that can be used to reach 50% heading. The highest number of days till 50% heading, area of the flag leaf, total chlorophylls, and height of the plant. While, Sids 14 cultivar was exceeded in the percentages of grains that contain crude protein and potassium. The greatest plant height, number of days until 50% heading, area of the flag leaf, and total chlorophylls, percentages of cereals that contain crude protein and potassium were achieved by raising the amount of NPK fertilizer to 100 kg N + 60.0 kg P2O5 + 30.0 K2O/fed. From obtained results of this study and in light of the climate changes that the whole world is witnessing, as well as Egypt, Under the environmental circumstances of Miniat El-Nasr District, Dakahlia Governorate, Egypt, it is possible to induce maximum development and productivity by planting Giza 171/Misr 1 cultivars on December 20th and fertilizing with 100 kg N + 60.0 kg P2O5 + 30.0 K2O/fed.

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