استخدام بكتريا azospirillum irakense سمادا حيوي للذرة البيضاء

الملخص EN

A field experiment was conducted in the horticulture station Shatra Thi-qar province.

Using randomized complete block design.

To study the effect of application A.

irakense with various levels of nitrogen fertilizer on growth and yield of sorghum.

The forrows were treated by four level of nitrogen which were 0,78,117 and 156 kg N Ha-1 .The sterilized seeds of sorghum were inoculated by A.

irakense bacterium .and some seed were left without inoculation as control.

The seeds were sown in the forrows.

At the end of growth period.

The height of plants.

dry weight , yield and its nitrogen content were determined.

The results were showed that the treatment A.

irakense +117kgNHa-1 gave better result compared with treatment uninoculation +156 kg N Ha-1.

by increasing the dry weight, yield and its nitrogen content .This treatment was saved about 39kg N.Ha-1 compared with out inoculation.

This were mean reduce the coast product and prevent the environmental pollution.