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Journal ArticleA field experiment was carried out during early ahu (summer) season of 2013 and 2014 at the research farm of Regional Rainfed Lowland Rice Research Station, Gerua, Asom to study the influence of dates of sowing and varieties on growth and yield of direct wet sown rice during early ahu season in flood prone lowland ecosystem. The treatments consists of three dates of sowing viz., 5th Feb., 15th Feb. and 25th Feb. in main plots and two varieties viz., ‘Abhishek’ and ‘Naveen’ in sub-plots. Growth and yield attributes like days to 50% flowering, panicles per unit area, grains per panicle, test weight and grain filling percentage showed significant response to different dates of sowing. The crop sown on 15th February recorded higher grain yield of 5.41 t/ha. The high yield was due to more panicles per unit area, grains per panicle, test weight and grain filling %. Delay in sowing to 25th February resulted low grain and straw yield. This was due to poor grain filling % which in turn was due to high rain fall during flowering and grain filling stage. Among the two varieties tested, ‘Abhishek’matured early by 6 days and yielded (5.07 t/ha) compared to ‘Naveen’ (4.95t/ha). The later variety had more panicles per unit area (317.2 vs. 305.8) but less test weight of grains (20.5 vs. 22.2 g). Sowing of early ahu rice on 15th February recorded higher gross return and B:C ratio as compared to early or late sowing.Not Availabl

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Not AvailableA field experiment was conducted during the rainy (kharif) season of 2011 and 2012 at Gerua, Hajo, Asom to assess the performance of high-yielding varieties of rice (Oryza sativa L.) under double-transplanting method in rainfed lowland rice ecosystem of lower Brahmaputra Valley of Asom. The experiment consists of 10 treatment combinations, viz. 2 plant stand establishment methods (normal transplanting and double transplanting) in main plots and 5 rice varieties ‘Ranjit’, ‘Swarna’, ‘Swarna Sub 1’, ‘Sabita’ and ‘Pooja’ in subplots. Double transplanting recorded significantly increase in grain yield by 9.4% over normal transplanting. The increase in grain yield was owing to increase in number of panicles/unit area, number of grains/panicle, grain filling percentage and 1,000grain weight. Among the rice varieties ‘Swarna’ recorded significantly higher grain yield of 6.16 t/ha followed by ‘Ranjit’ (5.67 t/ha) and ‘Swarna Sub 1’ (5.65 t/ha). Under double transplanting, ‘Swarna’ recorded the highest benefit cost ratio of 2.03 and least production cost of 5.03/kg of grain, while ‘Sabita’ recorded lowest benefit: cost ratio of 1.10 due to lowest yield (4.20 t/ha) and poor market priceNot Availabl

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Not AvailableThe experiment was conducted during 2011 and 2012 to study the efficacy of liquid seaweed sap of Kappaphycus alvarezii and Gracilaria edulis on growth and yield performance of summer rice in a lowland field at Gerua, Assam. The treatments consisted of Kappaphycus (K) sap and Gracilaria(G) sap, each in four different doses viz., 2.5%, 5%, 10% and 15% in combination with recommended doses of fertilizer (RDF); and were compared with RDF in combination with water spray, and, also with the 7.5% K sap+50% RDF. A total of 10 treatments were evaluated and the results indicated that rice grain yield was increased by 13.8% and 10.3% in the treatments 5% K sap+ RDF and 5%G sap+ RDF, respectively, as compared to RDF + water spray. The increase in yield was attributed to increase in the number of panicles per unit area, number of filled grains panicle−1 and test weight. Highest net return ( 29751 ha−1) and benefit: cost ratio(1.75) was obtained under 5%K sap+RDF with 20% increase in net return as compared to RDF + water spray. Application of 5% K or G sap in combination with RDF increased grain and straw yield, net income and benefit:cost ratio of summer rice.Not Availabl

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Not AvailableA field experiment was carried out during the winter (rabi) season of 2010–11 and 2011–12 at the research farm of Regional Rainfed Lowland Rice Research Station, Gerua, Asom, to study the effect of dates of planting and mulching on growth and yield of potato (Solanum tubersoum L.) in rice fallows of rainfed shallow lowland ecosystem. The treatments consisted of 6 dates of planting, viz. 30 October, 10 November, 20 November, 30 November, 10 Decemer and 20 December in main plots and with and without mulch in subplots. Growth and yield attributes like days to emergence, plant height, leaf-area index, tubers/plants, tuber yield and dry-matter content of tubers showed significant response to different dates of planting. Planting on 30 November registered higher plant population, tubers/plant and tuber dry-matter which resulted higher tuber yield (13.91 t/ha) than early or late planting. Early planting on 30 October recorded poor tuber yield of 7.92 t/ha which was due to poor crop stand. The yield components and yield of potato were positively influenced by the use of paddy straw mulch. Mulch with paddy straw recorded 24% increase in tuber yield over no mulch. Higher yield of potato under mulch might be owing to better crop stand, higher percentage of large tubers and better tuber dry matter. Common scab affected tuber percentage was significantly less in 30 November-planted plots (20%) as compared to other planting dates. Mulch with paddy straw reduced the incidence of common scab by 16% over no mulching.Not Availabl

Ict driven knowledge management in developing countries a case study in a Chinese organisation

International audienceCurrent research of knowledge management (KM) is mostly based on experience in developed countries that are already becoming knowledge economies [16]. In general, ICT (information and communication technologies) is playing an important part of KM in these countries. Applications of their KM models and frameworks might not yield expected results in developing countries. It is necessary to help organisations in developing countries to understand the issues of KM in their local context. Towards this goal, this paper explores current KM practice in China through a case study of a recently created Chinese mobile phone company (referred to as Lotus). The researchers present a model demonstrating how ICT can promote effective KM based on the Lotus case findings. However, this model is more applicable in the wider developing countries context than just China