Development And Performance Evaluation Of Manure Spreading Attachment To Two Wheel Trailer

摘要

Crops draw nutrients from the soil in order to grow and this withdrawal is compensated through fertilizers and manures to maintain the productivity of soil and to achieve higher yields. The manure can be distributed before plowing on the land surface as a thin or thick layer by means of manual forks or mechanically. The problem faced in the application of manure during the indigenous method is the rate to be applied per hectare and non-uniformity of the size of particles. So, a study was planned to evaluate the field performance of a tractor PTO operated manure spreading attachment to a two wheel trailer and compare it with the traditional method of spreading manure. The machine mainly consists of a manure tub to load the manure, an endless chain conveyor for conveying the manure towards the rear end of the trailer and a hydraulically operated spreader drum to shear off manure. The machine was tested at Research Farms of the Tamil Nadu Agricultural University and at the farmer's fields. It possesses the linearrnrelationship for the forward speed and chain conveyor speed with the application rate. But, the speed of the spreader drum did not influence the application rate of the manure. The desired application rate of the manure (12.202 tonnes/ha) was observed for the forward speed of 2.31 km/hr and the chain conveyor speed of 1.51 m/min with the effective width of 1.20 m and a time saving of 50-60 % when compared to the conventional method. The spread pattern obtained was a flat top profile, which is acceptable for uniform spreading. It can also be used as a trailer by just shifting a door whenever the trailer is required for transportation.