COMPOS PREPARATION FROM ORGANIC MATER AND ISOLATES OF BACTERIA AND STUDY THEIR ROLE ON DESERT SOIL PROPERTIES AND VIGNA RADIATE L. GROWTH IMPROVEMENT

Abstract

AbstractBio-organic fertilizer was manufactured with good C/N ratio by use location wastes plant and microbial biodegradation to increase perfecta microbial activity in soil. The compos effect on the some physical and fertilizer properties was tested in addition to their role on plant growth and yields. Four composes with different C/N ratio were prepare using the powder of Ceratophyllium demesies C/N 16:1 , wheat straw C/N 45:1 and Alfalfa C/N 25:1 and fermented using three bacterial isolates Pseudomonas spp. Streptomycete spp. Azotobacter spp for 20 and 40 days in 28 C0. The mineralization of N and C was determined by measuring CO2 , NO3, NH4 and humic acids. The beast tow composes were used to calcic soil fertilization (1.5% organic –C ), and Vigna radiata cultures with the use of Rhizobia leguminosarum inoculums for 80 days under green house . Results showed: That the C/N ratio was reached with compos AzWC,AzWF,PsWC,PsWF(C/N 30:1 ,40:1) . Ps. spp reached high noumber 9.507 Log.cfu/g./40days. Tow phases for releasing CO2 were in the first phase.The best C/N ratios 10:1 ,12:1 were reached in 20 ,40 days with AzWC and AzWF composes ,high falvic acid 3.6,3.5 gm/kg/20 days with AzWU and PsWC respectively , and large humic acid counted 8.0 ,7.7 gm/kg/40 days with AzWC and AzWU respectively .The total N in soil was increased to 95 mg/kg with AzWC treatment and the available P was reached to 37 mg /kg with Ps. Spp treatments. Upper Roots nodulation 26 ,22 nodal/ plant was recorded with RPsWC , RAzWC treatments .The dry weight for plant and yield reached to 117 ,115 gm Dw/plant and 88 ,96 gm grins /plant .After plant harvest the total N and available P were increased.On the other hands , soil density decreased with use of fermentation with organic mater, water conductivity increased and penetration of soil was reduced. Improvement in the water available for plant ,and an increase