Liaocheng Wheat-Corn One Year Two Ripe High Yield Restrict Element Research

Wheat-corn one year two ripe planting is the main planting mode of grain production inShandong Province, Liaocheng city. This article take the Liaocheng Dongchangfu District, Yanggu,Dong'e, Chiping, Gaotang, Lingqing,Guanxian, Shenxian, a total of eight counties (city, district)'farmer formal questionnaire and expert questionnaire survey as the basis, and this article has carried onthe system analysis of Liaocheng city wheat-corn one year two ripe production system, the author hashoped to form system, objective understanding to the restrict factors of food production potential of thisarea, and hope this work can provide agricultural technology promotion department, research institutes,policy-making departments to provide updated working train of thought, enhance research utilizationrate and the policy making basis. The results show that:1.The high yield trials and high yield cropland yield can be created as the reference index in thecurrent technical conditions of wheat-corn one year two ripe planting system production potential ofeach county (city, district), the surveyed households' wheat-corn one year two ripe average output is16204.5kg/hm2, only to create high-yielding research output of field64%-66.7%.2. The technology factors that restrict Liaocheng city wheat-corn one year two ripe productioninclode: varieties of confusion, there are nearly30%farmer of wheat seeds from the retention orneighbourhood change, part of corn seed purity is not high, resulting in single seed precision sowingplot sprout deficiency. The poor quality of the land, most farmers with perennial technology of rotarytillage, resulting in tillage layer becomes shallow, the roots of crops is hard to grow down, plant easydrought, plant lodging cause reduction of output, should be combined with agricultural subsidies toadvance deep subsoiling machinery popularization and application in large area; Planting density is notreasonable, Wheat planting appears sowing rate, population too large, low Hardy drought-tolerant,late field canopy, low disease resistance, lodging susceptible phenomenon. Maize planting density islow, not to ripe stage harvest, harvest premature, low degree of mechanization harvest. Organicfertilizer as basal fertilizer is less, application of chemical fertilizer exists serious imbalance and numberof unreasonable phenomenon, Most farmers has used more nitrogen fertilizer and less potash fertilizer.Farmers has lack of comprehensive and proper understanding to plant diseases and insect pests, can'trecognize some common diseases and insect pests, a lot of people can not symptomatic medication.To the above question, can take targeted measures for improvement, such as promoting the deep,deep loosening subsidies for the project implementation, to vigorously promote the wide precisionseeding technology, increase propagandist strength, guide farmer sowing, two season crop planningannual fertilization, promotion of formula fertilization by soil testing, water-saving irrigationtechnology, plant diseases and insect pests comprehensive prevention and control technology of wheat,corn, make annual production to achieve the coordination of high yield stability loop.3. The economic factors that restrict Liaocheng city wheat, corn one year two ripe production.From an economic perspective, the economic factors that restrict Liaocheng city wheat, corn oneyear two ripe production is commissariat to cultivate economic benefits is low. Farmer is planted foodearnings total household income proportion. In the cultivation of food crops as the main source ofincome of farmers is relatively small, accounting for only3%, mainly grow wheat, corn farmer, averagegrain income accounted for only32.2%of the total income of the family, the other main source ofincome is migrant workers or business.4. The social factors that restrict Liaocheng city wheat, corn one year two ripe production. The social factors that restrict Liaocheng city wheat, corn one year two ripe production include:rural main labour force of serious aging problem, land management scale is small, operation of thelarger farmers generally pay more attention to farmland yield and income, in their cultural level, the finenew varieties selection rates, the application of new technology on rate generally higher farmer obtaintechnical information formal channel not free, technology extension service system failed to give fullplay to the service function, agricultural technology extension service mode should be improved.