Optimization Of Corn Fertilization Formula Of Jin-Zhou

Under the circumstance of reform and opening up, market economy was considered to be theprimary way to eradicate poverty. Farmers are confronted with lower agricultural products but chemicalfertilizer and agricultural production implies that the reality of price is very high. How to mobilizefarmers' enthusiasm and income and to increase production becomes a pressing task.The experimental data from3414experiment are analyzed in Jin Zhou city through2009-2010,and a mathematical function model is established between the variable of yield and factors which affectscorn yield, such as nitrogen, phosphate potash, soil physical property level and climate. This paperdiscusses the influence of changes of single and multiple factors on corn. According to economic theory,we used the Ternary quadratic function model and Cobb-Douglas production function model to simulatethe production in order to get the best economic program in fertilizer based on the principle of profitmaximization which acquires the unit of maize marginal cost equal the marginal benefit. By theeffectiveness correction experiment in2010,we calculated the corn yield and economic benefit of blankfertilization, farmers' habits and government fertilizer three different fertilization scheme and madethem corresponding contrast with two kinds of function model. We found that maximizing output can'tget maximum economic interests. The economy of fertilization should take into account of thecombination of elements of production, costs and benefits balance input. Integrated function model andthe results of field trials, in the case of high corn production costs and low profits in2010, we suggestslightly reducing the nitrogen fertilizer, reducing the phosphorus fertilizer and adding potassium.Compared with the way farmers used to, this fertilization method can help increase income of per acre80-100Yuan, which is30-50Yuan more than the government's scheme. Therefore, we believe that themaximum yield is not the best. Under the influence of climatic conditions, it's very necessary to obtainthe greatest economic benefit by a reasonable formula of fertilization according to the price factors.