sewage sludge with having the organic matter is considered as a source of micro and macro elements. in order to investigate the effect of different levels and period of application of sewage sludge (ss) on organic matter, respiration, and acid and alkaline phosphatase activity, factorial design were studied, in 3 replications. sewage sludge at five levels, (20 and 40 tons of sewage sludge, 20 a...

the essential oil of rosa damascena mill. is one of the most valuable and important base material in the flavor and fragrance industry. the aim of this study was to determine the effects of different rates of cow manure on the essential oil of the rose petals. for this a field experiment was conducted on a clay loam soil at the research farm of alborz research station, karaj, iran. experimental...

The conventional treatment of distillery effluent including to secondary biologically treatment leaves excessive residue for disposal in surface water and onto the land. Optimal sub-surface loading of Phragmites karka tolerate distillery waste and achieve sustainable zero discharge. Pilot investigations established that subsurface loading into soil matrix (three part river sand, one part pebble...

PURPOSE To determine the influence of different ratios of hydroxyapatite (HA)/beta tricalcium phosphate (β-TCP) and collagen augmentation for posterior lumbar fusion in a rat model. MATERIALS AND METHODS We generated a posterior lumbar fusion model in 50 rats and divided it into five groups of equal number as follows; 1) autologous bone graft as group A, 2) 70% HA+30% β-TCP as group B, 3) 70%...

One hundred and eighty pigs were weaned at an average of 18.2 days of age and were assigned to one of five dietary treatments. Pigs were allotted based on genetics, sex and initial body weight. Treatments were as follows: A) Basal diet, no antibiotics (negative control); B) Diet A plus Carbadox at 45.4g/ton (50 ppm; positive control); C) .4% Organic acid blend, added to diet A by substituting f...

Soil organic carbon (SOC) sequestration is important for improving soil fertility of cropland and for the mitigation of greenhouse gas emissions to the atmosphere. The efficiency of SOC sequestration depends on the quantity and quality of the organic matter, soil type, and climate. Little is known about the SOC sequestration efficiency of organic amendments in Vertisols. Thus, we conducted the ...

Arable land use is generally assumed to be the largest contributor to agricultural diffuse pollution. This study adds to the growing evidence that conventional temperate intensively managed lowland grasslands contribute significantly to soil erosion and diffuse pollution rates. This is the first grassland study to monitor hydrological characteristics and multiple pollutant fluxes (suspended sed...

5 Chenggang Wu, Arunima Mishra, Melissa E. Reardon, I-Hsiu Huang, Sarah C. 6 Counts, Asis Das and Hung Ton-That* 7 8 Department of Microbiology & Molecular Genetics, University of Texas Health Science Center, 9 Houston, TX, USA. 10 Department of Molecular, Microbial & Structural Biology, University of Connecticut Health 11 Center, Farmington, CT, USA. 12 13 These authors contributed equally to ...