Interculture and Fertilizer Application Equipment - AICRP on Farm Implements and Machinery

Self-propelled Power Weeder

The machine is useful in row crops, horticultural and vegetable crops for weeding and seed bed preparation. It consists of a 4.1 kW diesel engine mounted on the power tiller chassis, power transmission system, two MS wheels, a frame and a rotary tiller. The power from the engine is transmitted with the help of belt and chain to the rotary and through gear train to the ground wheels. The rotary tiller has been provided with 16 blades fitted on high-pressure pipe of 37.5 mm diameter with the help of nuts and bolts to the flanges. For depth adjustment, two skids made of flat are provided on both sides of power tiller. A power cut-off device is provided to engage or disengage the power to the rotary system. The wheels with lugs are provided for traction. The speed of power weeder ranged 2.3-2.5 km/h with effective working width of 550 mm giving field capacity of 0.10 to 0.13 ha/h. The cost of self-propelled power weeder is about Rs. 40,000 and average cost of weeding is Rs 1000/ha. The equipment saves 90% operating time and 30% in cost of weeding as compared to hand weeding by khurpi

Power Weeder for Low Land Rice

A two row power weeder was developed by TNAU, Coimbatore in collaboration with M/s Premier Power Equipment & Product Pvt. Ltd., Coimbatore. It is suitable for doing timely weeding operation under all soil conditions in line sown paddy and SRI paddy. It is a self-propelled, compact and light weight power weeder. It weighs 17 kg and consists of 1.30 kW engine, float and rotary cutting blades. There are four high speed rotating blades (300 rpm) on either side, which weed two rows at a time. The weeding width is 150 mm. Due to compactness and less weight, it is easily maneuverable between the crop rows at speed. The row spacing is 236 mm and hill spacing is 168 mm. The average forward speed of operation of power weeder is about 30 m/min as compared to 15 m/min with cono-weeder. The average fuel consumption is 0.4 l/h. The field capacity of the power weeder is 0.70 ha/day and is about 4 times higher than cono weeder. The commercial model of the weeder is being manufactured under the brand name Garuda.

Tractor Mounted 3-Row Rotary Weeder

A tractor mounted rotary weeder was designed and developed at PAU, Ludhiana. It consists of a main frame, gearbox, three rotary weeding blade assemblies, a 40 mm square shaft for transmission of power from gearbox to rotary assemblies and a set of sprockets and chains. A standard 3-point hitch arrangement has been provided to mount the frame to tractor. Power from tractor PTO is transmitted to main square shaft through gearbox mounted on main frame and a set of sprockets and chain. It facilitates adjustment of row-to-row spacing from 675 to 1165 mm. The field capacity of machine is 0.24 ha/h with weeding efficiency of 83-87%. The approximate cost of this machine is Rs 60,000/-. The cost of operation with the machine is Rs. 1700/ha for single weeding as compared to Rs. 3600/ha by manual weeding. The machine saves 54% labour and 74% cost of operation as compared to traditional method.

Fertilizer Band Placement cum Earthing up Machine

The tractor operated (26 kW and above) fertilizer band placement cum earthing up machine was designed and developed at GBPUAT, Pantnagar. The machine was suitable for simultaneous placement of fertilizer, earthing up and cutting of weeds in crops such as maize, sugarcane, potato etc having more than 0.50 m row to row spacing. The urea fertilizer application rate ranged from 60 to 250 kg/ha. It helped in top dressing of fertilizer at 50 to 100 mm from the plant. The field capacity of machine was 0.56 ha/h with 82.4% field efficiency. The approximate cost of the machine is Rs. 50,000. There was considerable saving in fertilizer, time and labour over traditional method. The average height of soil throw (plant stem covered by soil) was 100 mm.

Tractor Operated Fertilizer Dibbler for Ratoon Sugarcane

The application of fertilizer mixture in ratoon sugarcane by punch placement enables the placement of the fertilizer directly into the mound in which the stools stand. Opening of the soil by hoe type openers for fertilizer placement will disturb the soil causing uprooting of the stools and also weakens root zone leading to lodging of the cane. The field after harvest of sugarcane is covered by a mat of trash up to a depth of 150 mm and punch application enables placement of fertilizer through crop residue. Therefore, a tractor operated fertilizer dibbler for ratoon sugarcane was designed and developed by TNAU, Coimbatore for placement of fertilizer without much soil disturbance and through crop residue. The principal components of the implement are revolving spade, fertilizer metering device, fertilizer placement funnel, soil covering and pressing device. The cost of the unit is Rs. 45,000/- and field capacity is 0.2 ha/h. The cost of operation is Rs.1550/ha and resulted in saving of 60% as compared to the conventional method.