Organic manure is considered as a beneficial fertilizer on soil quality and an excellent alternative resource of chemical fertilizer (CF). However, organic manure from intensive farms may have a negative impact on soil quality because of containing some harmful components, such as heavy metal and antibiotics. The aim of this study was to determine the influence of poultry litter (PL) and livest...

Integration of cover crops into arable rotations over winter results in difficulty determining the nitrogen (N) requirement for following commercial crop. The region Northern Ireland (NI) has had no previous field research on and how they may affect N supply to Stubble turnips (Brassica rapa oleifera L.) were sown as a crop, after harvest barley (Hordeum vulgare retained winter. Prior planting ...

Field experiment was conducted during 2003-04 to study the effect of vermicompost, farmyard manure and water hyacinth compost in comparison to chemically fertilized and unfertilized plots on crop-plants in HYV Swarna and local variety Magaisal. The experiment followed split plot design with two varieties of rice in the main plots and fi ve nutrient sources randomized in sub plots. Signifi cant ...

R. A. LEWIN . . 249 The Growth of Mycobacterium tuberculosis and Mycobacterium johnei in a Modification of Dubos Medium. By R. E. GLOVER . . 251 A Comparison of a Directand a Plate-counting Technique for the Quantitative Estimation of Soil Micro-organisms. By F. A. SKINNER, P. C. T. JONES and J. E. MOLLISON . . 261 Selection of Penicillin-sensitive Mutants of Escherichia coli following Ultravio...

Oxytetracycline (OXY) is a broad-range antimicrobial routinely used in pig production, at doses in the range of few g/kg of medicated feed, during the weaning period. It could persist at ppm level in pig liquid manure that routinely is used for organic fertilisation. In the present work we describe a methodology to study OXY environmental fate in arable land where crops are cultivated for anima...

A field experiment was conducted at the Experimental Farm of the Faculty of Agriculture, South Valley University at Qena on sandy soil to study the effect of integrated nutrient management (INM) on productivity and grain protein content of wheat. Seven different treatments with three replications each were carried out in the plot in RCB design. The recommended NPK, FYM and biofertilizer (Azotob...

Composting is a widely-used method to recycle the nutrients in livestock manure for agriculture. The spatial stratifications of microbial processes inside the manure particle that determine organic and nitrogen transformation are virtually unclear. Here, we show the evolution of the interior microenvironment of swine, cow and chicken manure by using microelectrodes during forced-aeration compos...

The biodegradation of organic matter ingressing spawning gravels in rivers exerts an oxygen demand which is believed to contribute to detrimental impacts on aquatic ecology including salmonids. Catchment management strategies therefore require reliable information on the key sources of sediment-bound organic matter. Accordingly, a novel source fingerprinting procedure based on analyses of bulk ...