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Gangtok, India

Pathak P.K.,Krishi Vigyan Kendra KVK | Nath B.G.,Sikkim Center | Mohanty A.K.,Krishi Vigyan Kendra KVK | Tripathi A.K.,KVK Inc | Ngachan S.V.,ICAR Research Complex for NEH Region
Asian Agri-History

A study was conducted to determine the production and management of village chicken in Dzongu (tribal area) in Sikkim, India. Selection of respondents of poultry farmers was done on the basis of simple random technique. In total, 120 respondents were selected from the area and data were collected through a standard questionnaire. Majority of the farmers kept up to five cocks and six to ten hens. Birds attain sexual maturity at the age of 6-7 months for male and 5-6 months for female. Average egg laying per year was 45-55 nos. and length between two laying cycles was 2-3 months. Improvement of village chicken in Sikkim was important to increase the productive performance of local chicken. Low growth intensity, low rate of laying, high mortality of one-day-old chicks, non-availability of medicines and vaccines, lack of market for birds and eggs, etc. were the major constraints faced by the poultry farmers. The present study viewed that village chicken development is necessary to improve the livelihood of rural farmers in Sikkim. Source

Das S.K.,Indian Agricultural Research Institute | Das S.K.,Sikkim Center | Mukherjee I.,Indian Agricultural Research Institute
Environmental Monitoring and Assessment

Degradation of flubendiamide as affected by microbial population count in two Indian soils (red and alluvial) varying in physicochemical properties was studied under sterile and non-sterile conditions. Recovery of flubendiamide in soil was in the range of 94.7-95.9 % at 0.5 and 1.0 μg g-1, respectively. The DT50 of flubendiamide at the level of 10 μg g-1 in red soil under sterile and non-sterile conditions was found to be 140.3 and 93.7 days, respectively, and in alluvial soil under sterile and non-sterile condition was 181.1 and 158.4 days, respectively. Residues of flubendiamide dissipated faster in red soil (non-sterile followed by sterile) as compared to alluvial (non-sterile soil followed by sterile soil). A wide difference in half-life of red and alluvial soil under sterile and non-sterile conditions indicated that the variation in physicochemical properties of red and alluvial soil as well as the presence of microbes play a great role for degradation of flubendiamide. The results revealed that slower-degrading alluvial soil possessed microbes with degradative capacity. The degradation rate in this soil was significantly reduced by some of its physicochemical characteristics, despite sterile and non-sterile conditions, which was faster in red soil. © 2014 Springer Science+Business Media Dordrecht. Source

A field experiment was conducted at research farm of SKN College of Agriculture, Jobner, Rajasthan to assess the effect of fertility and bioinoculants on growth, yield and economics of cluster bean (Cyamopsis tetragonoloba L.). The results revealed that application of 75% recommended dose of fertilizer along with Rhizobium inoculation recorded higher growth (plant height, branches/ plant, dry matter accumulation/plant and nodules/plant); yield attributes (pods/plant, seeds/pod and 1000-seed weight) seed and stover yields, gross returns (25.05 × 103 Rs./ha), net returns (13.63 × 103 Rs./ha) and B:C ratio (1.19) as compared to control and phosphate solubilizing bacteria (PSB) inoculation and remained at par with all other treatment combination. So, it was concluded that use of 75% RDF along with Rhizobium may be recommended for obtaining the higher yield of Cluster bean in the region. Source

Singh H.,Jawaharlal Nehru Agricultural University | Singh H.,Indian Agricultural Research Institute | Jha G.,Jawaharlal Nehru Agricultural University | Rawat A.,Jawaharlal Nehru Agricultural University | And 3 more authors.
Indian Journal of Agricultural Sciences

A field experiment was conducted during 2009-10 to investigate the effect of seed rates (40, 60, 80 and 100 kg/ha) and seeding depths (2, 4 and 6 cm) on growth, physiological parameters and economics in wheat (var GW 273). Study was carried out in agricultural farm Department of Agronomy, JNKVV, Jabalpur located in Kymore Plateau and Satpura Hills agro-climatic zone of Madhya Pradesh. As results indicate plant height, crop growth rate (CGR) and relative growth rates (RGR) increased significantly in 80 kg/ha seed rate as well as 2 cm sowing depth. The CGR was significantly correlated with grain yield with different seed rates as well as sowing depths. Results revealed that along with increases in CGR, seeds @ 80 kg/ha sown at 2 cm depth significantly increased dry matter production and grain yield in wheat. We conclude that these agronomical practices may prove to be beneficial to enhance the resilience and yield of wheat crop in this part of the agro-climatic zone. Source

Babu S.,Indian Agricultural Research Institute | Babu S.,Sikkim Center | Rana D.S.,Indian Agricultural Research Institute | Yadav G.S.,Indian Agricultural Research Institute | And 3 more authors.
Indian Journal of Agricultural Sciences

A fixed plot field experiment was carried out during kharif and spring seasons of 2008-09 and 2009-10 at New Delhi, to study the residual effect of sunflower (Helianthus annuus L.) stover and P management and direct effect of N and P on productivity, nutrient uptake and economics of spring sunflower. Residual effects of sunflower stover incorporation and 30 kg P/ha and direct effect of recommended dose (RD) of NP (80 kg N + 15 kg P/ha) resulted in higher yield attributes, seed, stover and biological yields, gross returns, net returns, B:C ratio and uptake of N, P and K. Residual effect of sunflower stover incorporation increased seed yield of sunflower by 14.9 and 25.9% over the no stover incorporation during 2009 and 2010, respectively. Residual effect of 30 kg P/ha caused 22.3% and 24.4% increase in the seed yield of sunflower over the control during 2009 and 2010, respectively. Direct effect of RD of N and P (80 kg N + 15 kg P/ha) recorded the maximum seed yield (2.85 and 2.57 tonnes/ha) during both the years, which was significantly higher than 50% RD of NP (2.56 and 2.27 tonnes/ha) and control (1.70 and 1.57 tonnes/ha). Increase in seed yield due to RD of NP was 11.3 and 13.2% higher than 50% RD of NP and 67.6 and 63.7% than control. With regards to economics and nutrients uptake, residual effect of sunflower stover incorporation and 30 kg P/ha recorded significantly higher values of gross returns, net returns and B: C ratio and NPK uptake over control (no stover incorporation) and other P levels, respectively. Among the different doses of NP applied to sunflower, direct effect of RD of NP (80 kg N + 15 kg P/ha) registered the highest gross returns (64.11 × 103 and 6.13 × 103 RS/ha), net returns (48.76 × 103 and 44.66 × 103 RS/ha) and B:C ratio (3.19 and 2.80). Source

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