Mariculture of mussels in India

Worldwide, bivalves are recognised as a source of inexpensive protein of high nutritional value. In India bivalve resources are still exploited at a subsis tence level. The growth performance, natural abundance, adaptability to new environment, simple and inexpensive culture techniques have made mussel a candidate species for culture operations. The bivalve mussels of the genus Perna are ex tensively cultured in Thailand, Philippines and New Zealand

Alumina Supported Co–K–Mo Based Catalytic Material for Diesel Soot Oxidation

Alumina supported Co–K–Mo based mixed metal oxide type catalytic materials have been prepared by co-impregnation. These catalysts show excellent activity for carbon as well as diesel soot oxidation, which could be due to the redox properties of Mo and Co as well as to a synergistic effect of molybdenum, cobalt, and K contents. The catalyst containing 5 wt% molybdenum shows a lowering of carbon oxidation by about 190 °C under loose contact conditions as compared to the non-catalyzed reaction, as well as to bare alumina. Characterization studies suggest a composite nature of these materials, while thermal stability investigations confirm the stable nature. The selected catalyst has been studied by XPS, however, it is difficult to conclude which are the important factors contributing to the catalytic activity. It appears to be a synergistic effect of Co, K, and Mo components as these catalysts show much improved activity as compared to the individual components in supported and unsupported forms

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Not AvailableThe objectives of sowing operation are to put the seed along with fertilizer in rows at desired depth and seed to seed spacing, cover the seeds with soil and provide proper compaction over the seed. The machinery such as seed cum fertilizer drill with attachment of furrow irrigated raised bed (FIRB), broad bed furrow (BBF) and ridge & furrow systems are used to sow the seeds on raised beds in a pulverized soil so as to allow easy emergence of seed with proper moisture availability and better drainage during excess rainfall events. Several researchers have studied the effect of seed cum fertilizer drill with attachment of Furrow Irrigated Raised Bed (FIRB), Broad Bed Furrow (BBF) and Ridge & Furrow systems on water sensitive crop soybean. The present paper reviewed such studies to conclude the better sowing method on the growth and yield of soybean crop in vertisols of India.Not Availabl