Nitrogen is the major nutrient plays a key role in the production of rice crop and the lateritic soils are low in available nitrogen content.Accordingly,the field study was carried out in lateritic soils of Konkan(Coa...Nitrogen is the major nutrient plays a key role in the production of rice crop and the lateritic soils are low in available nitrogen content.Accordingly,the field study was carried out in lateritic soils of Konkan(Coastal)region during year(2017-2018)to find out the effect of different levels of nitrogen along with silica levels on growth and yield of rice.The major aspect behind taking this kind of research was to see the interaction between the applications of varying levels of nitrogen with the different levels of silica.An experiment was carried out with FRBD design.The nitrogen was given by the Konkan Annapurna Briquettes(KAB)which is the compressed tablet type mixture of the fertilizer which is having major nutrients N,P and K.Silica was applied solely through potassium silicate with the paper packets.There might have been positive response with growth and silica levels also with the rate of application of nitrogen with the increased levels of silica.It was observed that the application of 80 per cent RDN through Konkan Annapurna Briquettes(KAB)with Silica@100 kg ha-1 which was applied between four hills was found promising in enhancing the growth and yield of Ratnagiri-24 Cv.in lateritic during Kharif season.It could be concluded that,the application of nutrients in the form of Konkan Annapurna Briquettes along with the application of silica can reduce the recommended dose of fertilizer to the extent of 20 per cent during Kharif season in Konkan region.展开更多
A machine with manual operation for mulch-laying machine with a punching arrangement was developed,and its performance was assessed at three different mulch paper thicknesses(15 m,20 m and 25 m),three different disc a...A machine with manual operation for mulch-laying machine with a punching arrangement was developed,and its performance was assessed at three different mulch paper thicknesses(15 m,20 m and 25 m),three different disc angles(35 degrees,40 degrees,and 45 degrees),three different punch spacings(250 mm,500 mm,and 1000 mm),and three different forward speeds(1.3 km/h,1.5 km/h,1.7 km/h)to investigate their effects on field capacity,effective field efficiency,and punching efficiency.Utilizing randomised block design and response surface methods,the experimental plan for optimization was created.All of the independent variables’combined effects on the dependent variables were found to be statistically significant.The influence of operating speed and mulch paper thickness was found to be the most significant on the dependent variable.The effective field capacity and field efficiency increased from 0.11 ha/h to 0.19 ha/h and 72.04 percent to 89.51 percent,respectively,by increasing mulch paper thickness from 15μm to 25μm and operating speed from 1.3 km/h to 1.7 km/h,whereas punching efficiency fell from 85.18 percent to 84.40 percent.Mulch paper of 15μm and a disc angle value of 40 degrees were optimised from the independent factors that were chosen for optimal soil covering over the laid plastic mulch sheet.Punching efficiency was maximised with performance optimised at 500 mm punch spacing.Additionally,the machine operated more efficiently at 1.5 km/h.展开更多
文摘Nitrogen is the major nutrient plays a key role in the production of rice crop and the lateritic soils are low in available nitrogen content.Accordingly,the field study was carried out in lateritic soils of Konkan(Coastal)region during year(2017-2018)to find out the effect of different levels of nitrogen along with silica levels on growth and yield of rice.The major aspect behind taking this kind of research was to see the interaction between the applications of varying levels of nitrogen with the different levels of silica.An experiment was carried out with FRBD design.The nitrogen was given by the Konkan Annapurna Briquettes(KAB)which is the compressed tablet type mixture of the fertilizer which is having major nutrients N,P and K.Silica was applied solely through potassium silicate with the paper packets.There might have been positive response with growth and silica levels also with the rate of application of nitrogen with the increased levels of silica.It was observed that the application of 80 per cent RDN through Konkan Annapurna Briquettes(KAB)with Silica@100 kg ha-1 which was applied between four hills was found promising in enhancing the growth and yield of Ratnagiri-24 Cv.in lateritic during Kharif season.It could be concluded that,the application of nutrients in the form of Konkan Annapurna Briquettes along with the application of silica can reduce the recommended dose of fertilizer to the extent of 20 per cent during Kharif season in Konkan region.
文摘A machine with manual operation for mulch-laying machine with a punching arrangement was developed,and its performance was assessed at three different mulch paper thicknesses(15 m,20 m and 25 m),three different disc angles(35 degrees,40 degrees,and 45 degrees),three different punch spacings(250 mm,500 mm,and 1000 mm),and three different forward speeds(1.3 km/h,1.5 km/h,1.7 km/h)to investigate their effects on field capacity,effective field efficiency,and punching efficiency.Utilizing randomised block design and response surface methods,the experimental plan for optimization was created.All of the independent variables’combined effects on the dependent variables were found to be statistically significant.The influence of operating speed and mulch paper thickness was found to be the most significant on the dependent variable.The effective field capacity and field efficiency increased from 0.11 ha/h to 0.19 ha/h and 72.04 percent to 89.51 percent,respectively,by increasing mulch paper thickness from 15μm to 25μm and operating speed from 1.3 km/h to 1.7 km/h,whereas punching efficiency fell from 85.18 percent to 84.40 percent.Mulch paper of 15μm and a disc angle value of 40 degrees were optimised from the independent factors that were chosen for optimal soil covering over the laid plastic mulch sheet.Punching efficiency was maximised with performance optimised at 500 mm punch spacing.Additionally,the machine operated more efficiently at 1.5 km/h.
