Rotary Dibbler
It is a manually operated push type device for dibbling of medium and bold size seeds such as maize, soybean, sorghum, pigeon pea and bengal gram in well prepared seedbed. It consists of a rotating dibbling head with penetrating jaws, covering-cum-transport wheel, seed hopper with cell type wooden roller and a handle. Seed metering is cell type having six cells on periphery.The number of jaws varies from five to eight depending upon seed to seed distance. For its operation, the hopper is filled with seeds and transport-cum-covering wheel is drawn to rear side. The dibbler is then pushed forward in the direction of travel with covering cum transport wheel behind the dibbling head. The jaws penetrate into the soil and automatically drop the seeds. The seed to seed distance depends upon size of the polygon plate to which jaws are attached. This implement costs Rs. 2300/- and its cost of operation is Rs. 460/ha. It covers 0.6 to 1.0 ha/day and labour requirement is 27 man-h/ha.
Seeding Attachment to CIAE Animal Drawn Tool Frame
It is an attachment made for the bullock drawn CIAE multi-purpose tool frame and suitable for sowing wheat, gram, pea, soybean, sorghum and pigeon pea. It can apply granular fertilizers like urea and DAP. The hopper has compartments for fertilizer and seeds and the ground wheel is a floating type thus enabling uniform seed placement even when the soil surface is not properly leveled. Seed metering device is of flutted rollers type and furrow openers are of shoe type. Separate side wheels allow accurate adjustment of the seed drill attachment and are also useful for transportation. The field capacity of the implement is 0.10-0.15 ha/h. This implement costs Rs 20,000/-. It saves 73% in labour and operating time and 55% in cost of operation as compared to conventional method of sowing behind country plough or seeding by broadcasting. It also results in 10 to 18% increase in yield as compared to sowing by conventional method.
Animal Drawn Three Row Seed-cum-Fertilizer Drill
It is an animal drawn simple, light weight and compact machine to sow crops like wheat, gram, sorghum, soybean, lentil, pea, sunflower, safflower etc. and drill fertilizer in soil under rainfed condition. It consists of tubular steel section frame on which various components are mounted. The seed box is of mild steel and the metering mechanism uses aluminum-fluted rollers. The furrow openers are of shoe type and are made of medium carbon steel hardened and tempered for opening the furrow and placing the seeds at desired depth. The ground wheel provides the power needed for operating the seed metering mechanism and a pair of idler wheels on either side help in proper adjustment of depth of seed placement. A lever mechanism is also provided for raising and lowering the ground wheel on turns. A pair of bullocks can easily pull the implement. The working width of the machine is 225-700 mm. The weight of machine is 50 kg. The row spacing of the seed drill can be adjusted as per the requirement of the crop being sown. It costs Rs. 9000/- and cost of operation is Rs800/ha. The effective field capacity of equipment ranges 0.12 – 0.15 ha/h and labour requirement is 4-10 man-h/ha.
Bullock Drawn 4 Row Groundnut Planter
The groundnut farmers use the traditional practices of farm operations with the available bullock drawn implements which are labour intensive operations. The 4 row bullock drawn groundnut planter was developed at PJTSAU, Hyderabad and consists of seed hoper (8 kg capacity), trough feed type seed metering mechanism, ground wheel of 300 mm diameter and sprocket and chains for power transmission. The width of the planter is 1.2 m. The row to row and plant to plant spacing are 300 mm and 100 mm, respectively. The total weight of the machine is 55 kg and field capacity ranges 2.0-2.4 ha/day. The cost of equipment is Rs. 8000/- and cost of operation is Rs. 150/h.
Power Tiller Mounted Air Assisted Seed Drill
The germination percentage varies widely for small seeds such as sesame. A power tiller mounted an air assisted seed drill has been developed for drilling small seeds at the desired seed rate. The spacing between the rows can be adjusted from 300 mm for 4 rows to 600 mm for 2 rows. The effective field capacity of the machine is 0.25 ha/h. Lifting the tool bar can cut-off the power to seed metering shaft. The cost of operation with this machine is Rs. 750/ha as against Rs. 1200/ha for conventional method.
Power Tiller Operated Inclined Plate Planter
Power tiller operated 3 row inclined plate planter has been designed and developed at RCNEH, Barapani for sowing maize, soybean and pea crops in terraces and valley lands of NEH region. The power is transmitted from ground drive wheel to seed feed shaft through chain, sprockets and a set of bevel gears. The row to row spacing of the planter is adjustable (130-280 mm) by sliding the furrow openers on tool bar. Different crops can be sown by changing seed plates and by changing the transmission ratio. The effective field capacity of equipment is 0.114 ha/h in hilly region. The cost of inclined plate planter is Rs.12000/- and cost of operation is Rs. 1600/ha.