This paper presents an analysis of the feasiblity of the economic working of the farm motors in theory,and the technological energy saving measures about the farm motors in working;it also gives an illastration of their effects of saving energy.

Repair and Recycle of Agricultural-machinery Based on Green Idea;

In recent years,Agricultural modernization is pushed rapidly by advance of agricultural-machinery.

A two-wheel measurement device based on photoelectric encoder was designed, which could weaken the effect of the uneven surface by the optimization processing data from two wheels in order to measure speed and distance of agricultural machinery accurately.

Following the policy on "benefit to peasantry"bring into effect,the income of peasantry improve very much and inspire enthusiasm of peasantry on purchasing good-sized agricultural machinery;Via capability of all kinds of agricultural machinery,the merit of good-sized agricultural machinery is protruding.

The agricultural machinery and agronomic involves agricultural engineering and agronomy two major areas,from the history of scientific and technological development,it is with the agronomic requirements,then have the machinery invention,and then design and produce the necessary agriculturaltool .

This text has introduced the often square law that the structure, principle, traction force of the traction force sensor of farm implements test, and hang the electron of farm implements to test systematic composition and application.

In this paper,the linear program is put to use for optimal allocation of farm implements in state farm.