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Not AvailableThe software code presented is the computational code for estimating relative risk of species loss induced by barge movement. The theoretical development can be found in Naskar et al. (2021), which is a Bayesian Generalized Linear Mixed Model. Computational algorithm used ‘JAGS’ (Plummer, 2003), which implements BUGS, for fitting the model via R (R Core Team, 2019) using ‘R2jags’(Su and Yajima, 2012)—which is an R package that allows fitting JAGS models from within R. The codes for model-fitting are provided in (‘R_code S1’ and ‘BUG_code S2’).Not Availabl

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Not AvailableThe present study conducted in the Bhandari or lower range of Wokha district of Nagaland in north-eastern India aimed at analyzing the impact of human activities such as shifting agriculture (‘Jhum’) and horticultural practices on microbial biomass and Fluorescein diacetate hydrolysis (FDA) and dehydrogenase (DHA) activities in soil. Microbial biomass carbon (MBC) and nitrogen (MBN) as well as FDA and DHA activities were significantly greater in the soils of the undisturbed forest than the soils under various land-use practices. The MBC and MBN in the surface soil layer (0–25 cm) were highest (99.0 and 20.43 mg kg–1, respectively) in the forest and lowest (21.89 and 6.25 mg kg–1, respectively) in the 1year old jhum fallow, which was subjected to intense human activities. Similarly, FDA (1.33 mg fluorescein h-1 kg-1) and DHA (80.62 mg TPF 24 h-1 kg-1) were highest in the forest and lowest (0.67 mg fluorescein h-1 kg-1 and 41.55 mg TPF 24 h-1 kg-1, respectively) in the 1 year old jhum fallow. Thus, human activities in the forest ecosystem were responsible for significant reduction in both microbial biomass and enzyme activities. Both these properties showed recovery during regrowth of vegetation on jhum fallows. Microbial biomass and enzyme activities declined with increasing soil depth in all the land-use. Pearson’s correlation matrix revealed strongly significant positive correlation of microbial biomass and enzyme activities with selected soil properties. A highly significant positive relation between MBC and MBN was also observed.Not Availabl

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Not AvailableOriginating from foothill of Bhutan the river Pagladia joins with the River Brahmaputra in the village Lawpara in Nalbari district of Assam. A study was conducted on limno chemistry in the lower stretches of this tributary covering a stretch of about 17.18 km. Three stations were selected from Bijulighat to Nalbari town and fortnightly water parameters were analyzed during January to July 2010. The maximum and minimum values of different water parameters obtained which conclude the water parameters to be within the permissible limit which can be well utilized for fish production by eco-friendly management norms of the surrounding users.Not Availabl

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Not AvailableBanded leaf and sheath blight (BLSB) of maize (Zea mays L.) is caused by most widespread and destructive pathogen Rhizoctonia solani f. sp. sasakii. The disease is difficult to manage through fungicides or crop rotation alone due to its soil-borne nature and unavailability of host resistance sources. Four modules namely one chemical, two organic and one integrated disease management (IDM) modules were evaluated at four hot spot locations viz., Ludhiana, Karnal, Delhi and Pantnagar during Kharif 2018 and 2019. Mean disease severity of BLSB was found significantly low in all the treatments compared to positive control across the locations. The chemical module showed the highest percent disease control (PDC) in Ludhiana and Pantnagar while the IDM module showed the highest percent disease control (PDC) in Karnal and Delhi. The Benefit-cost (B:C) ratio was the highest in the chemical module at Ludhiana (1.35) and Pantnagar (1.11) while standard control showed the highest B:C ratio at Delhi (1.72) and Karnal (0.84) over the control. It is concluded that effectiveness of modules varied among the locations due to weather and soil conditions. Based on the B:C ratio of different treatments, the specific module had been identified to manage BLSB location wise. Chemical and IDM were effective at all the locations to manage the BLSB disease.Not Availabl

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Not AvailableMulberry (Morus indica L.) is an agroforestry species grown extensively in India as multipurpose tree. In north eastern India, it is cultivated as sole crop for rearing silkworm under low management practices without any chemical fertilizers and organic inputs. Besides, limited scope of incorporation of mulberry leaves in soil prevents the addition of organic matter into soil. Therefore, the quality of mulberry leaf as well as silk solely depends on the nutritional status of soil on which mulberry is grown. In the present investigation, an attempt was made to assess the fertility status of soil under mulberry cultivation as sole crop in six rural development blocks namely, Kakodonga, Dergaon, Kathalguri, Podumoni, Sarupathar and Bokakhat of Golaghat district in upper Brahmaputra valley of Assam in north eastern India. Results indicated that soils were extremely to strongly acidic (pH < 5.5) in 44% of the mulberry gardens. Organic carbon content was medium to high in 80% of the surface soil samples (0-20 cm.) and low to medium in 84% of sub-surface soil samples (20-50 cm.). About 51% of the sub-surface soil samples were low in N and 98% of the sub-surface soil samples were low in P status. Among micronutrients, B was deficient in more than 80% samples; whereas, Zn deficiency was found in 36% of the sub-surface samples. Nutrient index values indicated that mulberry growing soils of Kakodonga and Bokakhat were the least fertile as far as the availability of major nutrients are concerned due to the soil resources of recent origin (Entisols) with coarse texture occurring on active flood plains in these blocks. The study indicated the wide spread nutritional deficiency in soils of upper Brahmaputra valley of north eastern India.Not Availabl

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Not AvailableMulberry (Morus indica L.) is an agroforestry species grown extensively in India as multipurpose tree. In north eastern India, it is cultivated as sole crop for rearing silkworm under low management practices without any chemical fertilizers and organic inputs. Besides, limited scope of incorporation of mulberry leaves in soil prevents the addition of organic matter into soil. Therefore, the quality of mulberry leaf as well as silk solely depends on the nutritional status of soil on which mulberry is grown. In the present investigation, an attempt was made to assess the fertility status of soil under mulberry cultivation as sole crop in six rural development blocks namely, Kakodonga, Dergaon, Kathalguri, Podumoni, Sarupathar and Bokakhat of Golaghat district in upper Brahmaputra valley of Assam in north eastern India. Results indicated that soils were extremely to strongly acidic (pH < 5.5) in 44% of the mulberry gardens. Organic carbon content was medium to high in 80% of the surface soil samples (0–20 cm.) and low to medium in 84% of sub-surface soil samples (20–50 cm.). About 51% of the sub-surface soil samples were low in N and 98% of the sub-surface soil samples were low in P status. Among micronutrients, B was deficient in more than 80% samples; whereas, Zn deficiency was found in 36% of the sub-surface samples. Nutrient index values indicated that mulberry growing soils of Kakodonga and Bokakhat were the least fertile as far as the availability of major nutrients are concerned due to the soil resources of recent origin (Entisols) with coarse texture occurring on active flood plains in these blocks. The study indicated the wide spread nutritional deficiency in soils of upper Brahmaputra valley of north eastern India.Not Availabl

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Not AvailableMulberry (Morus indica L.) is an agroforestry species grown extensively in India as multipurpose tree. In north eastern India, it is cultivated as sole crop for rearing silkworm under low management practices without any chemical fertilizers and organic inputs. Besides, limited scope of incorporation of mulberry leaves in soil prevents the addition of organic matter into soil. Therefore, the quality of mulberry leaf as well as silk solely depends on the nutritional status of soil on which mulberry is grown. In the present investigation, an attempt was made to assess the fertility status of soil under mulberry cultivation as sole crop in six rural development blocks namely, Kakodonga, Dergaon, Kathalguri, Podumoni, Sarupathar and Bokakhat of Golaghat district in upper Brahmaputra valley of Assam in north eastern India. Results indicated that soils were extremely to strongly acidic (pH < 5.5) in 44% of the mulberry gardens. Organic carbon content was medium to high in 80% of the surface soil samples (0–20 cm.) and low to medium in 84% of sub-surface soil samples (20–50 cm.). About 51% of the sub-surface soil samples were low in N and 98% of the sub-surface soil samples were low in P status. Among micronutrients, B was deficient in more than 80% samples; whereas, Zn deficiency was found in 36% of the sub-surface samples. Nutrient index values indicated that mulberry growing soils of Kakodonga and Bokakhat were the least fertile as far as the availability of major nutrients are concerned due to the soil resources of recent origin (Entisols) with coarse texture occurring on active flood plains in these blocks. The study indicated the wide spread nutritional deficiency in soils of upper Brahmaputra valley of north eastern India.Not Availabl

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Not AvailableA study was carried out to investigate the macrobenthic invertebrate community structure from the river Tapti from July 2017 to January 2020. A total of 49 taxa belonging to 2 phyla, 5 class, 17 orders, 26 families, and 31 genera were recorded from 13 sites of the river Tapti. Phylum Mollusca (58%) was the most dominant group followed by Arthropoda (42%) in the community structure. The species Tarebia lineatea and Bellamya bengalensis were the most abundant among the Gastropoda, Parreysia favidens and Corbicula striatella among the Bivalvia, and Caenis sp. and Chironomus sp. and among the Insecta. The frequency and relative frequency of the species revealed that the most dominant species was Bellamya bengalensis from the class Gastropoda. The data generated in the present study will be act as baseline information and would be useful in future studies for interpretation of the health of the Tapti river.ICAR-CIFR