Study on the Comprehensive Agrotechnique and Machinery for Semi-concisely Drilled Winter Wheat

By means of operational research, a set of optimal comprehensive agrotechnique and semi-concise wheat drill was put forward from a mutti-objective function on production and net output value, with variables controllable in agrotechnique and machinery which have more significant effect on wheat production. The model was found reliable in many experiments and prodution.By applying the model in 142,600 ha of winter wheat production in 4 years, a benefit of 14 million Yuan was gained. Its economic and social benefits were both great.