Effect of digestate / biogas slurry on wheat under rice – wheat cropping system / B.P. Pandey in Journal of Agriculture and Forestry University, Volume 4 (2020)  

Public ISBD [article]  inJournal of Agriculture and Forestry University > Volume 4 (2020) . - 67-75 p. Title : Effect of digestate / biogas slurry on wheat under rice – wheat cropping system Material Type: printed text Authors: B.P. Pandey, Author ; N. Khatri, Author ; K. R. Pant, Author ; R. P. Poudel, Author ; A. H. Khan, Author Publication Date: 2020 Article on page: 67-75 p. Languages : English (eng) Keywords: crop productivity, organic matter, Triticum aestivum, nitrogen Abstract: Soil fertility in several parts of Nepal is declining mainly due to continuous cultivation and without replenishing soil nutrient removal by crops with quality fertilizers in required quantity. Nepal does not produce chemical fertilizers and most farmers cannot afford to buy the imported fertilizer. Under these circumstances, emphasizing locally available low cost organic manure may become an important option. This research compares the effect of different stages [5 days (fresh), 90 days (3 months) and 180 days (6 months)], and dose (0, 5, 10 and 15 t ha-1) of digestate/biogas slurry on wheat yield. Field experiments were conducted during winter seasons of 2016 – 2017 (first year) and 2017 - 2018 (second year) in a silt loam soil to identify suitable stage and appropriate dose of digestate regarding yield maximization of wheat. The experiment was done by using 2 factors Randomized Complete Block Design (RCBD), each treatment with three replications. Grain yield was significantly higher (2.2 t ha-1) due to application of biogas slurry of 5 days stage than the stage of 90 days (2.1 t ha-1) in 2016 - 2017, 2017 – 2018 and in pooled analysis. Grain yield increased significantly up to the dose of 10 t ha-1 as compared to that of no use (check), and became saturated, in 2016 – 2017, 2017 – 2018, and also in pooled analysis. Hence, the use of biogas slurry of the stage of 5 days with the dose of 10 t ha-1 resulted higher grain yield of wheat (cv. Vijay), is edaphically and economically viable option for wheat production Link for e-copy: https://afu.edu.np/sites/default/files/Effect%20of%20digestate%20%20biogas%20slu [...] [article] Effect of digestate / biogas slurry on wheat under rice – wheat cropping system [printed text] / B.P. Pandey, Author ; N. Khatri, Author ; K. R. Pant, Author ; R. P. Poudel, Author ; A. H. Khan, Author . - 2020 . - 67-75 p. Languages : English (eng) in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 67-75 p. Keywords: crop productivity, organic matter, Triticum aestivum, nitrogen Abstract: Soil fertility in several parts of Nepal is declining mainly due to continuous cultivation and without replenishing soil nutrient removal by crops with quality fertilizers in required quantity. Nepal does not produce chemical fertilizers and most farmers cannot afford to buy the imported fertilizer. Under these circumstances, emphasizing locally available low cost organic manure may become an important option. This research compares the effect of different stages [5 days (fresh), 90 days (3 months) and 180 days (6 months)], and dose (0, 5, 10 and 15 t ha-1) of digestate/biogas slurry on wheat yield. Field experiments were conducted during winter seasons of 2016 – 2017 (first year) and 2017 - 2018 (second year) in a silt loam soil to identify suitable stage and appropriate dose of digestate regarding yield maximization of wheat. The experiment was done by using 2 factors Randomized Complete Block Design (RCBD), each treatment with three replications. Grain yield was significantly higher (2.2 t ha-1) due to application of biogas slurry of 5 days stage than the stage of 90 days (2.1 t ha-1) in 2016 - 2017, 2017 – 2018 and in pooled analysis. Grain yield increased significantly up to the dose of 10 t ha-1 as compared to that of no use (check), and became saturated, in 2016 – 2017, 2017 – 2018, and also in pooled analysis. Hence, the use of biogas slurry of the stage of 5 days with the dose of 10 t ha-1 resulted higher grain yield of wheat (cv. Vijay), is edaphically and economically viable option for wheat production Link for e-copy: https://afu.edu.np/sites/default/files/Effect%20of%20digestate%20%20biogas%20slu [...]

In-vitro evaluation of commercially available fungicides against Bipolaris sorokiniana, the cause of spot blotch of barley / B. Angdembe in Journal of Agriculture and Forestry University, Volume 3 (2019)  

Public ISBD [article]  inJournal of Agriculture and Forestry University > Volume 3 (2019) . - 105-111 p. Title : In-vitro evaluation of commercially available fungicides against Bipolaris sorokiniana, the cause of spot blotch of barley Material Type: printed text Authors: B. Angdembe, Author ; N. Dhakal, Author ; S. G.C., Author ; K. R. Pant, Author ; H. K. Manandhar, Author Publication Date: 2020 Article on page: 105-111 p. Languages : English (eng) Keywords: Food poisoned technique, fungicide, spot blotch, Abstract: A laboratory experiment was done to evaluate the effectiveness of commercially available fungicides against spot blotch pathogen of barley, Bipolaris sorokiniana, at Nepal Polytechnic Institute (NPI), Chitwan, Nepal by employing food poisoned technique. Fungicides such as Uthane-M45 (mancozeb 75% WP), Blutoxx (copper oxychloride 50% WP), Bavistin (carbendazim 50% WP), and Thiram (thiram 75% WS) with three concentrations (100 ppm, 200 ppm and 400 ppm) were included in the experiment. Experiment was arranged in a completely randomized design with four replications for each treatment. The mycelial growth of B. sorokiniana was recorded at 2, 4, 6, 8, and 10 days after inoculation. All the fungicides significantly reduced the mycelial growth of the pathogen as compared to control (without any fungicide) in poisoned culture. Copper oxychloride at 400 ppm inhibited 83% growth of mycelium of the fungus after 10 days. All the concentrations of copper oxychloride and 400 ppm of mancozeb were able to inhibit more than 50% of mycelial growth of the fungus. The results revealed that inhibition percentages were increased with the increase in the concentrations of all fungicides used in this study. The present results thus suggest that the current recommended doses of copper oxychloride and mancozeb for foliar application purposes may not be sufficient to manage the disease under field conditions and also for seed treatment. The recommended doses may need to be re-evaluated. Link for e-copy: https://afu.edu.np/sites/default/files/12.In-vitro_evaluation_of_commercially_av [...] [article] In-vitro evaluation of commercially available fungicides against Bipolaris sorokiniana, the cause of spot blotch of barley [printed text] / B. Angdembe, Author ; N. Dhakal, Author ; S. G.C., Author ; K. R. Pant, Author ; H. K. Manandhar, Author . - 2020 . - 105-111 p. Languages : English (eng) in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 105-111 p. Keywords: Food poisoned technique, fungicide, spot blotch, Abstract: A laboratory experiment was done to evaluate the effectiveness of commercially available fungicides against spot blotch pathogen of barley, Bipolaris sorokiniana, at Nepal Polytechnic Institute (NPI), Chitwan, Nepal by employing food poisoned technique. Fungicides such as Uthane-M45 (mancozeb 75% WP), Blutoxx (copper oxychloride 50% WP), Bavistin (carbendazim 50% WP), and Thiram (thiram 75% WS) with three concentrations (100 ppm, 200 ppm and 400 ppm) were included in the experiment. Experiment was arranged in a completely randomized design with four replications for each treatment. The mycelial growth of B. sorokiniana was recorded at 2, 4, 6, 8, and 10 days after inoculation. All the fungicides significantly reduced the mycelial growth of the pathogen as compared to control (without any fungicide) in poisoned culture. Copper oxychloride at 400 ppm inhibited 83% growth of mycelium of the fungus after 10 days. All the concentrations of copper oxychloride and 400 ppm of mancozeb were able to inhibit more than 50% of mycelial growth of the fungus. The results revealed that inhibition percentages were increased with the increase in the concentrations of all fungicides used in this study. The present results thus suggest that the current recommended doses of copper oxychloride and mancozeb for foliar application purposes may not be sufficient to manage the disease under field conditions and also for seed treatment. The recommended doses may need to be re-evaluated. Link for e-copy: https://afu.edu.np/sites/default/files/12.In-vitro_evaluation_of_commercially_av [...]