| Anhui Province is one of the important bases of commodity grain in China. It hasfertile soil and its cultivated area amounts to4181000hm2, the comprehensive grainproduction capacity up to31.355Mt and the straw production capacity up to52.629Mt. The main straw are rice straw、wheat straw and corn straw, accountedfor82.7%of the total. The straw resources are mainly distributed in the Huaibeiregion and Jianghuai region, each has17.484Mt and16.487Mt straw, accounted for40.7%and38.4%respectively of resources. At the same time, straw also contains richnutrient resources, straw contains nutrient resource1.466Mt, including0.479MtN,0.15Mt P2O5,0.904Mt K2O, which equivalent to1.032Mt urea （N≥46.4%）,1.25Mt superphosphate phosphorus （P2O5≥12%） and1.586Mt potassium chloride（K2O≥57%）, worth about4.58billion yuan. However, the irrational use of the strawresources, not only caused a great waste, but also caused serious pollution to theecological environment. According to the survey, nearly half of the straw were burnedand accumulated in the field. The method of the straw disposal causes waste ofresources, fire risk and air pollution, which has adverse effect in transportation，farmland ecosystem，resident’s health and surrounding plants.The thesis makes a research on the present situation, methods and developingtrend domestic and abroad in multipurpose use of straw. At the same time, to calculatethe straw resources quantity and nutrient content, According to the survey, strawresource utilization and the problems in use of the straw. Combined with strawcomprehensive utilization planning in Anhui province, and puts forward the suitablefor the actual status of Anhui Province of straw utilization ways.Through this thesis research, put forward a series of measures to promote thecomprehensive utilization of straw, to create economic benefits, build aresource-conserving and environment-friendly society is an important strategicsignificance and have great realistic effect. |
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