Effect of preceding crops, seeding rate, bio and mineral nitrogen Fertilzer on wheat productivity [electronic resource].

Includes reference.

Two field experiments were conducted at Sers EL-Lian Agricultural Research Station (EL-Minufiya Governorate) during 2005 / 2006 and 2006 / 2007seasons to study the effect of some preceding summer crops (cotton, soybean and maize) ,seeding rates (50, 60 and 70 kg seeds / fed )and three treatments mineral and bio-Fertilization (70 kg mineral N/fed, 70 kg mineral N/fed + Cerialein500g/fed and 70 kg mineral N/fed + Cerialein750g/fed) / fed on grain yield ,yield components and protein yield of wheat cultivar Sakha 94. Split- split plots design with three replication was used. The results indicated that yield, yield components and protein yield of wheat recorded the highest values when wheat was sown after soybean followed by cotton and recorded the lowest values when sown after maize. The results showed that plant height, number of spikes / m² , spike length (cm), number of grains / spike as well as 1000- grain weight (g), grain yield/fed and protein yield were significantly increased by increasing seed rates in both seasons, except grain weight /spike and straw yield /fed were not significantly in the first season and the number of spikelets/spike in both seasons.

Summary in arabic.

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