Effect of planting patterns and NK fertilizers levels under two planting date on yield and fiber properties of Egyptian cotton in middle Egypt

الملخص EN

Two separate field experiments were conducted during 2019 and 2020 seasons, at Mallawi region, Minia Governorate, Egypt, to study the effect of two planting date, four planting patterns and three NK fertilizer levels on yield and fiber properties of Egyptian cotton (Gossypium barbadense, L.

) promising hybrid cotton (CB58 X Giza 90).

The results could be summarized as follows was observed: Planting date significantly affect seed cotton yield fed^-1 and lint index in the both seasons and micronaire reading, 2.5 % span length and length uniformity ratio in the first season only.

Regarding planting patterns significant effect on seed cotton yield fed^-1 and lint index in the both season.

NK fertilizer levels had a significant effect on seed cotton yield fed^-1 and lint index in both seasons and fiber strength and 2.5 % span length in the first season only.

Seed cotton yield fed^-1 was affected by the interaction between planting date and planting patterns in the first season.

It can be concluded that early planting, 130 cm bed width and 30 cm hill space planted in two sides and fertilized by 75 kg N + 48 kg K₂ O fed^-1 under the conditions in middle Egypt.