Design Development and Evaluation of Lever type Maize Sheller

An investigation was carried out to design, develop and evaluate the performance of manually operated Lever type Maize Sheller (LMS). It consisted of a handle, guiding rod, supporting rod, spring loaded ram, cob guiding cylinder, shelling blade, buffer, collection chamber, shutter and frame. The performance of LMS was statistically compared with tubular maize sheller (TMS) in terms of throughput capacity, shelling capacity, shelling efficiency, unshelled seeds and damaged seeds. Statistical analysis showed that individual and interaction effect of length of cobs and type of shellers significantly affected the performance parameters at 1% level of significance. The throughput capacity and shelling capacity was found to be 45 kg cobs/h and 35 kg seeds/h whereas it was 68% and 67%, respectively more as compare to TMS. Moreover, shelling efficiency of LMS was found as 96.34% and it was 3.12% less than that of TMS. The unshelled seeds were 3.66% with LMS and 0.55% with TMS. The seed damage during operation with LMS was around 5%, while it was nil in case of TMS. The total savings on shelling hundred kg seeds was found as ₹428 with average hourly net profit of ₹ 150.22 and payback period of 10 hours

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Not AvailableAn optoelectric sensor based digital seedling counter was developed for measuringseedling spacing and for detecting the flow of seedlings through the seedling delivery tube. It was placed on the seedling delivery tube through which the seedlings were transferred to the ground from the metering mechanism. The performance of the developed sensor was evaluated both in the soil binas well as in actual field conditions. Seedling spacing was calculated with the signals obtained from optical sensor in data acquisition system (DAS) whereas seedling flow was counted by processed signals in microcontroller based digital seedling counter in soil bin conditions. The seedling spacing was calculated by measuring the output of the optical sensor over time and seedling flow was calculated writing a program in the circuit, to convert the optical sensor output to calculate number of seedling falls. Number of seedling falls was programmed to be calculated and digitally displayed on the tractor dashboard whereas seedling flow was seen in the display of oscilloscope by output signals i.e. voltage over time. The developed sensor could successfully sense the seedling fall through the delivery tube, counted it and displayed it digitally. It provided information to the operator regarding flow of plants in the tube. The seedling spacing obtained in the soil bin and field conditions varied from 0+1.5 cm and 0±3 cm, respectively for the entire range of speeds and seedlings selected. Number of seedlings counted manually and by sensor for both soil bin and field had 0% variation.Not Availabl

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Not AvailableAn experiment was conducted to assess the influence of fertilizers application on nutrients’ availability in soil, uptake pattern, and growth and yield of bt cotton under rainfed condition in kharif season of 2011-2012. The experiment was laid out in randomized block design with ten treatments (T1 to T10) and replicated thrice. Data on available nutrients N, P, K, S, Zn, B, and Mg in soil, uptake pattern of N-P-K and growth parameters were collected. The application of fertilizers significantly influenced the soil nutrients availability, uptake pattern and growth parameters as well as seed cotton yield. Available nutrients N, P, K, S, Zn, B, Mg in soil, Uptake pattern of NPK and biometric observations and yield of cotton were highest with nutrient combination of T10 (Recommended dose for Bt cotton.(125:62.5:62.5)+S), except available P in T5 (N+P+K), Mg, T2 (RDF P + Potassium)and Zn T9 (Recommended dose of nitrogen + phosphorus + potassium + sulphur + magnesium + zinc +boron (spray)). Therefore, T10 followed by T9 was found to be preventive for cotton reddening. Treatment T10 produced highest seed cotton yield (19.22 q ha-1) followed by T9 (19.04 q ha-1). Therefore, consiNot Availabl

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Not AvailableA low cost manually operated portrays type nursery seeder for sowing of vegetable seeds was developed and evaluated for its performance. It consisted of set of plates such as base plate, media firming-cum-watering plate, hole forming plate and set of seeding plates. The set-up is developed for sowing of 104 cells portrays (13 x 8 rectangular arrays). Experiment was conducted to identify the orifice size and plate thickness for sowing of vegetable seeds of chilli, brinjal and tomato in portrays. Performance parameters such as percent single, percent multiple, percent miss, singulation efficiency, seeding efficiency and seed utilization efficiency for 2 mm thick and 3.5 mm orifice diameter plate (CP4) for chilli was found to be 65.28, 29.38, 5.34, 69.10, 91.02 and 76.51%, respectively. Similarly, for 2 mm thick and 2.9 mm orifice diameter plate (BP4) for brinjal was found to be 78.21, 16.35, 5.45, 82.76, 90.91 and 85.61%, respectively. Moreover, for 2 mm thick and 3.5 mm orifice diameter plate (TP2) for chili was found to be 74.23, 21.35, 4.42, 77.76, 91.90 and 81.85%, respectively. Hence CP4, BP4 and TP2 were used for further evaluation of the setup. Total time saving with developed setup over traditional method was found to be 68% for all selected seeds. Cost of operation and labour saving was found in the range of 67-68% when compared with manual seeding by traditional method. Cost of the developed manually operated portray type nursery seeder is about Rs. 2000/- and weight is 15 kg.Not Availabl

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Not AvailableAn experiment was conducted to assess the influence of fertilizers application on nutrients’ availability in soil, uptake pattern, and growth and yield of bt cotton under rainfed condition in kharifseason of 2011-2012. The experiment was laid out in randomized block design with ten treatments (T1to T10) and replicated thrice. Data on available nutrients N, P, K, S, Zn, B, and Mg in soil, uptake pattern of N-P-K and growth parameters were collected. The application of fertilizers significantly influenced the soil nutrients availability, uptake pattern and growth parameters as well as seed cotton yield. Available nutrients N, P, K, S, Zn, B, Mg in soil, Uptake pattern of NPK and biometric observations and yield of cotton were highest with nutrient combination of T10 (Recommended dose for Bt cotton.(125:62.5:62.5)+S), except available P in T5(N+P+K), Mg, T2(RDF P + Potassium)and Zn T9(Recommended dose of nitrogen + phosphorus + potassium + sulphur + magnesium + zinc +boron (spray)). Therefore, T10 followed by T9was found to be preventive for cotton reddening. Treatment T10produced highest seed cotton yield (19.22 q ha-1) followed by T9 (19.04 q ha-1). Therefore, consideringplant pigments yield, T10can be recommended for growing of Bt cotton under rainfed condition (13) Influence of fertilizers' application on available nutrients in soil, uptake pattern, growth and yield of BT cotton under Rainfed condition | Request PDF. Available from: https://www.researchgate.net/publication/324517089_Influence_of_fertilizers'_application_on_available_nutrients_in_soil_uptake_pattern_growth_and_yield_of_BT_cotton_under_Rainfed_condition [accessed Nov 05 2018].Not Availabl

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Not AvailableA low cost manually operated two row vegetable transplanter was developed for transplantingof plug type vegetable seedlings on ridges and mulch beds. It consisted of frame, seedling tray holder,hand lever, frame support rod, jaw assembly, seedling feeding pipe, handle, gauge wire, marker holderand marker. The developed transplanter was evaluated for inter and intra-row spacings of 45×45 cm and60×60 cm. Manual transplanting on ridges (MTR) and on plastic mulch beds (MTP) were compared withmanually operated transplanter on ridges (MOTR) and on plastic mulch beds (MOTP). The transplantingrate of vegetable seedlings using single labour was found to be 8, 5, 23 and 17 seedlings min-1 for MTR,MTP, MOTR and MOTP, respectively. Forward speed ranged from 0.15 to 0.41 km/h for entire range ofspacing and type of transplanting selected. Similarly, field efficiency was found to be 30 and 41% (MTR),21 and 28% (MTP), 45 and 60% (MOTR), 33 and 44% (MOTP) for spacing of 45×45 and 60×60 cm,respectively. Similarly, cost of operation (Rs/ha) was found to be 2571 and 1416; 3770 and 2121; 884 and497 and 1200 and 675 Rs/ha, respectively. Difference in heart rate, cardiac cost and maximum oxygenconsumption rate was worked out to be 33 beats/min, 203703/ha (20.37 beats/m2) and 2.9109 l/min.Moreover rest pause during the operation was worked out to be 4.5 minute. The time saving over manualtransplanting is 34% and 32% in MOTR and MOTP, respectively.Not Availabl