تأثير معاملة بقايا محصول القمح في بعض خصائص التربة الميكروبيولوجية و إنتاجية نبات القمح

Abstract EN

This research was carried out in Al- Raqqa Governorate (Syria)( 2009- 2011) , where three methods were used in treating wheat crop residues (burying, collecting, burning).

The Randomized Complete Black Design (RCBD) had been adopted in designing the experiment.

In order to study treatment impact of these residues on some microbiological properties of soil and yield of wheat crop, The microbiological properties of the soil were studied at a depth of 20 cm before and after cultivation.

The most important results were that burying of wheat residues had led to increasing the total number of bacteria, Fungus total number and Actinomys total number (11.82, 14.49 and 11.97% respectively) in comparison with their numbers before cultivation.

While the burning of wheat residues had led to decreasing the number of these micro-organisms (7.98, 6.73 and 8.58 % respectively) in comparison with their numbers before cultivation.While comparing the productivity of wheat crop under burying treatment with the productivity of wheat crop under burning treatment, it was observed that wheat productivity decreased by 3.79% significantly (P<0.05) under burning treatment.

When comparing the numbers of microorganisms under collecting treatment with the numbers of microorganisms under burning treatment, there was significant differences in decreasing of the numbers of Fungus (16.29%) and in decreasing the numbers of Actinomys (11.83%) under burning treatment.

and by comparing it with burying treatment there was significant differences (P<0.05) in increasing the numbers of Actinomys (8.71%) under burying treatment.